As some of you know, over the past 9 months, I’ve been heavily involved in the establishment of Humbug. For those who may not know, Humbug is a Call Analytics and Fraud Analysis SAAS. Now, differing from many of the current telephony SAAS projects, we are not based on Amazon EC2 or some other public cloud infrastructure, we build our own cloud environment. Why do we build our own cloud? simple, we need to keep your data secured and confidential. At Humbug, we see ourselves as a cross between Google Analytics – in our ability to analyze and handle data and Verisign – in our security and confidentiality requirements and methodologies.

Question be asked, why do people trust Verisign to provide SSL certificates around the world. What makes Verisign’s CA better than a privately owned CA – the answer is simple, it’s a third party 2 entities can entrust at the same time. Humbug aims to provide the same lever of trust, simply because we regard your data as sacred and valuable.

Since about 2 months ago, we’ve been contacting various Asterisk integrators around the world, inviting them to evaluate Humbug services. Now, while some integrators and vendors were somewhat reluctant, others were more than happy to join. We now have over 250 monitored systems around the world, with system being monitored and analyzed in Israel, USA, UK, Brazil and more.

The thing that amazed me in regards to some of the integrators who decided not to participate was that they claimed: “we provide our customers our own brew of fraud analysis service, we don’t require your SAAS”. Now, while I can accept the fact that an integrator would offer such a SAAS as an in-house service, I can’t see why a customer would rely on these services. In my view, relying on your integrator to provide fraud analysis services is like relying on the integrator of your alarm system to provide hired guard services – it just doesn’t make any sense to me. Why doesn’t it make sense? in Hebrew we say: “Go prove that you have a sister”. Imagine that your PBX integrator offer you such a service, then, in some obscure manner, your PBX gets hijacked and you get slammed with 50K$ worth of phone calls to Somalia. Now, your integrator would say: “Hmmmmm… that’s odd, we didn’t even get those CDR events to our system… you really got hacked bad…” – sure, if you only rely on CDR records to do your analysis (which is what 99.9% of integrators do). There is much much much much more to fraud analysis than just CDR analysis – if it all began and finished with CDR analysis, then by far Cvidya, Verint, NICE and many others would have been made redundant.

Allowing your integrator to provide you with fraud analysis SAAS is like putting the fox to guard the hen house, when things louse up (and they may), he’s the first one to bail out saying: “It’s not my fault”.

Humbug takes a totally different approach to fraud analysis, specifically, in the way we regards the various PBX systems and integrators. We are vendor agnostic and integrator agnostic – we will provide you with the clear and concise information you require in order to make an educated decision as to how you were de-frauded (if de-frauded) and provide you a faster alerting and response time. Our recent adventures had lowered our fraud alert response time from 60 minutes, down to 14 minutes in some cases. Most fraud analysis system carry a 24-36 hour turn around time, by that time, you can be out of 50K$ – our aim is to lower that number to no more than a 100$ in the worst case. Ambitious? yes, down right crazy? probably so, but we always say: “Aim for the moon, you’ll land on a star!” – so we know we’ll get there.

Image via Wikipedia

For those who had been reading this blog for some time now, you may have stumbled across my blog post from 2008, regarding me buying a Nokia E90 - http://www.simionovich.com/2008/06/06/i-finally-purchased-a-nokia-e90.

Well, it’s a fact, since the year 1998, I’ve been an avid Nokia fan. I think I’ve ranged from the old Nokia 51XX, through the 6XXX up to the E61, E62 and E90 – if it was some funky Nokia phone that gave me some new feature, I most probably had it. I guess that the time I spent at m-Wise, working closely with various mobile content technologies had put its toll on me – and I became a Nokia Cell Phone addict. For many years I couldn’t imagine myself digressing from the Nokia clan. Even when my friends moved from their Nokia/Motorola/Ericsson phones to a star spangled iPhone – I remained faithful to my old habits – and remained with my trusty Nokia.

Image via Wikipedia

About two years ago I promised myself this: “If you ever decide to move to a touch screen phone, don’t go ala iPhone, stay for a Nokia phone” – so I waited. The initial Nokia touch phones came out. The first Nokia touch phone that came out, I believe shortly after the iPhone was the Nokia 5800, also known as the Nokia XpressMusic.

I’ve got one thing to say about this phone – “What the hell were you thinking???” – it’s a phone, not a bloody MP3 player – if I wanted an MP3 player, I would have bought an iPod. Apart from being the slowest phones I’ve ever encountered, its touch interface was annoying and disruptive.

So, I didn’t buy the Nokia 5800 – I simply had no use for it. At that point I decided to wait a bit more, and see what Nokia cooks up. Shortly after seeing the 5800 in dis-action, I met a new member of the Nokia clan: the Nokia 700.

The Nokia 700 was a totally new thing, not really a phone, not really a PDA – somewhat of a cross between the two. It was big and bulky, and I couldn’t imagine myself walking around with one of these – however, it showed some promise. Sure, it was big, bulky, slow and anything bad you can say about a device – however, it had one thing – it showed potential – something to look for. At that time, I decided that I needed a proper smart phone and purchased the Nokia E90 – and I was fairly happy with it till 8 months ago.

You are probably asking, why would an avid Nokia fan become displeased with his trusty E90 phone – the answer is simple – the plastics. The plastics are of such low quality, that after 18 months of usage, the paint job starts to peel away from the phone. As you run more and more applications, or store more data, the phone becomes sluggish and slow – to the point where you have to reset it.

So, 2 months ago I gave up, I said to myself: “that’s it, time to move forward and leave the Nokia clan” – but I still didn’t want to put myself with the iPhone clan – or to be more exact, the iPhone cult movement. While at the Amoocon convention, I came across some people who were using HTC phones, specifically the HTC Evo. Well, I was somewhat taken with this snazy piece of hardware. It was fast, it was fluid and for some funky reason, I felt at home with it. Could it be, have I found a new clan for my mobile needs? I returned back home starting to examine my options. The HTC Evo isn’t available in Israel, the next best thing is the HTC Desire.

The HTC Desire is also known as the Google Nexus-1, basically it’s the same phone. I tried using the Nexus-1, but I didn’t like it. Specifically, I didn’t like the fact that the four keys are touch based – on the HTC these are real keys, making my life much easier.

So now, I’m equipped with the HTC Desire, and apart from the occasional Android crash (not too often to be honest) – it is one of the best phones I ever had. It’s fast, syncs my life into a manageable construct and most importantly, it’s become a second nature to me. The only disadvantage of owning such a phone is that you need a massive Data plan with your carrier – this little machine can gobble up ten’s of megabytes on a daily basis. My old Nokia E90 was using 25MB of data per month, with the Desire, I consume that much in less than a day – that is an amazing number.

In order to get better into Android development, I’ve ordered an Eken M002 device. This is a 7″, Android based tablet PC. I’ll be posting information about that once it arrives.

The following post doesn’t really fit in line with the normal spirit of the blog, simply because it’s not funny nor directly related to technology. It’s called Business 2.0, as it relates to the ever problematic question any business owner has: “When should I grow and how?”.

As you may know, I’ve been a freelance Asterisk Platform developer since early 2003, turned to freelance development (Penguin for hire) around April 2007. Since that time, I’ve built systems and platforms for some of the better known brands around the world. Be it working directly with the customer or through a 3rd party (as a sub contractor) – I can easily say that I’ve completed over 120 different large scale projects within 3 years time. Now, when I refer to projects, I’m not referring to installing PBX systems, I don’t do that at all – I’m referring to highly complex application level development, creating some of the most innovative Asterisk based systems I’ve ever seen.

Image via CrunchBase

Image via Wikipedia

Putting aside everything, finalizing a rough estimate of 40 development projects on a yearly base, most of these performed solely by myself is a fairly challenging task. Sure, at times I’ll outsource some work to other freelancers like myself, specifically in fields where I’m not all that fluent (Database, Web Development, UI) – but yet, doing that means that I’m conducting 3 – 5 projects on a monthly basis.

After doing so for 3 years now, I can’t help but start thinking about expanding my business, taking it to the next level by hiring more people and building it up to a new level. Question remains for this: “How? What is the natural track of expanding your business?” – of course the simple answer would be: “Just hire another developer or two, and start doing more sales” – it’s not as simple as it sounds. After thinking about it for some time, I’ve concluded there are a few models of expansion:

Model 1: Organic Growth

Organic growth can be described as the simplest way of growth: “Hire a new guy and get more work in”. The problem with this model that it is fully reliant on your ability to sell more. However, as you concentrate on sales more, you take time from the development and delivery process – thus, the addition of the new developer is not a 100% addition, it’s actually 100% (developer) minus 40% (you) – so you are not at 200% capacity, you are 160% capacity. Surely 160 is 100, however, for the initial 6 months, till the guy learns the ropes, you are not at 160, you are actually at 80 – can you and your business sustain that?

Thus, the main issue with Organic growth is cash flow, can your business sustain the elevated expenses with less income for the period of transition? If the answer is NO, then you need a different method. If the answer is YES, then you are in the best place in the world, however, bear in mind that taking someone to work for you is a responsibility – people are not resources, they are human beings, with families and children – taking someone to work for you is like taking responsibility for their lives.

Model 2: The Partner

A partnership with a person who is equally matched to you is always a good option. Technically speaking, it means that you are teaming with someone who generates as much work as you do and is capable of finalizing the work as fast and as good as you can. Yet, taking a partner doesn’t negate the requirement for a new employee or two. In this case, you may end up with too much sales with too little staff to deliver – that is a big problem.

Another issue with partners is the issue of trust. While most partners tend to rely on each other and trust each other, that trust can easily be broken (in most cases by stupid things). It’s enough for one partner to now carry its weight in sales/development to initiate a chain reaction, shortly ending in the partnership dissolving.

So, the partner is a good option, however, may prove to be problematic if the wrong partner is chosen – in addition, dissolving a partnership solely on these issues isn’t all that simple – and usually ends up in litigation and other judicial issues – YUCK!

Model 3: Un-intrusive Angel

Some people ragard Un-intrusive Angels as “Stupid Money” – an Angel investor that doesn’t interfere in your company business model and operations. In many cases, this is how start-up companies start – someone gives them a lump sum of money to start their business, signing off to own a portion of the new company.

An un-intrusive investor usually gives you the money and pays you a visit once every few months to see how his money is spent. Don’t expect to raise a whole lot from these people, usually you will get anything from 25K$ to around 250K$ – tops. If you are getting an investment from an Angel, make sure you plan your business carefully – and make sure your investor knows what he is getting into. The Angel is not a found piggy bank, he is a business man looking for profit – if you make sure his expectations of profits (time frame, amount, percentage, etc) are kept within the reason of your business – he will make an educated decision and invest accordingly. Promises like: “you’ll double your money in 3 years” are stupid – make sure it’s realistic and to the point. If you promise the moon, and reach a star – that’s a problem, if you promise the skies and hit a start – that’s wonderful.

Model 4: The Strategic-Intrusive Angel

Image by TheFemGeek via Flickr

A strategic angel is similar to the previous one in terms of funds, however, he is more capable in assisting your business meet its goals. Usually, it would be someone who is already a well established figure in your business sector, had made his money from previous companies and is now looking for new ideas and businesses. I call him an intrusive Angel, as sometimes he may have ideas as to where your business should go – and he will make sure you hear his ideas. You may regard it as annoying, but you should still listen to your Angel and pay him the respect he deserves.

Sometimes this Angel may invest in your business due to the fact that he has a hidden agenda. An agenda can be: The angel looks at your business and see a certain potential you are not planning, he’ll invest and try to re-direct your company to the agenda he sees. This is usually the case when your angel is invested into several endeavours that is either parallel to each other or may have orthogonal intersection points. These angels can be the builders of your business or the destroyers, it is up to you to make sure the latter doesn’t happen.

Prolog:

So, which model did I choose? – I didn’t choose yet, I’m still figuring it out myself. What ever the model may be, the choice isn’t simple nor straight forward. At best, whatever choice I’ll take will have a profound impact on my business and me – so I’ll need to weigh my options carefully. If you can think of an additional model, I’d love to hear about it – so just comment on this post.

Revenue sharing is one of the oldest methods of earning profits, actually, I believe it may just be right up there with trading of goods and food. For those of you not in the know, I’ll explain what revenue sharing is:

1. A content provider wishes to distribute a certain type of content – charging for it.
2. The content provider has not ability to charge the consumers directly, thus he partners with another party – the transport maintainer.
3. The transport maintainer charges the consumer, while keeping a certain percentage in his pocket.
4. Everybody’s is happy.

In general, this model works really well in many markets – specifically those that are driven by unique content – for example the mobile content market (ringtones, screen savers, games, apps) – the Apple App store is a wonderful example of how this works.

In the telecom industry, the revenue shares business is very common – however, in many cases it is highly guarded as a secret – main reason is that now one wants anybody else to know how they do it. This hiding of information, usually results in some problems – as when there is hiding of information, only those in the know are able to access it. Those in the know are called “mediators” or in Herbew “Machers”. In this entire ordeal, the mediator also takes a small percentage – leaving the content provider with slightly less. So, now it looks like this:

1. A content provider wishes to distribute a certain type of content – charging for it.
2. The content provider has not ability to charge the consumers directly, thus he contacts a mediator to find him a transport partner.
3. The mediator engages the prospective transport maintainer.
4. The transport maintainer charges the consumer, while keeping a certain percentage in his pocket and passing some funds to the mediator as well.
5. Everybody’s is happy.

So, if everybody’s so happy – why am I bitching about it? very simple – people are Greedy and always want more – putting the entire model into a frenzy. In order to give an example, let’s imagine the following scenario:

1. Company A provides IVR based content utilizing Asterisk server, connected to the internet.
2. The mediator engages a premium number company, getting the total revenue of 0.08$ for every inbound minute of traffic.
3. The premium number company leaves 0.01$ in its pocket and also pays the mediator a fee of 0.01$ per minute.
4. The content provider gets 0.06$ of the 0.08$ – 75% of the net profit goes to the content provider.
5. Content provider says: “Hell, I want the mediators 0.01$ as well, and I think the premium company should only get 0.005$, so I would get 0.075$ at the end”
6. Content provider contacts the premium provider and starts complaining
7. Premium provider negotiates and strikes a deal for 0.07 to the content provider, leaving the premium provider with 0.005$ and the mediator with 0.005$
8. Premium provider says: “I’m not making enough money on this, actually, I’m loosing money – I’ll find a better alternative service for that access number”
9. Premium provider asks mediator to bring in a new customer, providing similar content – mediator has sure incentive here
10. Premium provider gets new customer and transfers the access number to the new customer – returning back to previous profits
11. Original content provider is left with no profits and only greed in his hands

Over the past 10 years, I’ve seen this vicious cycle happen over and over and over again, in various formats and scenarios – but always ending in the same outcome – the content provider always suffers. If you’re a content provider and you provide IVR based services, let the people that provide you the access make their cut and the people in the middle, without them, you will have a service with no access – which means no service at all. Don’t go about thinking you can keep all the profits to yourself, you will break the equilibrium of this business, and eventually, no one will want to do business with you.

Well, it’s been almost a month since I’ve started writing about the humbug project. Now, it’s time to actually get you people involved, at least in the initial levels. We are looking to add 10 additional members into the humbug call analytics suite. Currently available analytics during the alpha testing is inbound call analytics.

Our aim is to gather as much information as we can and as much user requests as we can, humbug is a community oriented project, thus it relies on community oriented input and feature requests. Participating members will  be granted access to the humbug analytics portal, allowing them to gather statistical information regarding their inbound call hits and their top ten DID numbers – we are working on additional statistics. As new stats will become available, we’ll role those out into the service as soon as possible.

In order to participate in the closed alpha testing, please send an email to alphatest at humbuglabs.org, and we’ll send you a short piece of dialplan code to insert into your Asterisk server. Technically speaking, we’ll send you a short AGI command that looks like this:

exten => _X.,n,AGI(agi://somehost/DataReceiver,some_unique_ident)

The above line needs to be inserted into any place you would like to generate call analytics from. We’ll also enclose configuration steps for FreePBX (and other FreePBX compatible distributions). We are hard at work for creating a FreePBX integrated module, so you can do a one-click install.

“Oh, just get me the CDR‘s and I’ll take it from there” – how many times have I heard these words before? I can’t even imagine the number of times in the past 15 years of IT/Telecom’s work that I’ve done and in the last 8 years of Asterisk in particular – when it comes to billing and fraud management, it would appear that the CDR’s are the Rosetta Stone of the industry.

Over the past 6 months, several of my friends and I had been asking ourselves this question: “Is there more to billing, fraud management and profit leakage? does it really all begins and ends with the CDRs?” – so, here we were, a group of 3 engineers dealing with telecom system and billing systems – we knew that the answer is a definite YES, however, how come most companies and system aren’t even aware of this, in such a way that causes them to leak telecom profits and waste their hard earned profit margins on simple accidental mis-interpretation of CDR records.

So, we’ve decided to sit down and start analyzing calls in real-time, trying to evaluate not only the CDR record that is received upon the completion of the call – but also understand the traversal path of the call, analyzing it in real time and evaluating it profit leakage potential. At the mean time, we’re concentrating our work on Asterisk, as it is the simplest for us to implement – however, we’re not focusing it only on that – we’ll looking at adding it to FreeSwitch, Yate, OpenSer/Kamailio, OpenSIPS and the various varients.

So, what have we done so far? well, one thing we never really had with any of the existing systems was a clear view of what’s going on “right-now” on our systems, so we said: “it would really be great if we could know how many call hits we’ve received during the past 15, 30, 45 or 60 minutes” – so here is what we made:

The above image shows our top 10 inbound DID numbers, as you can see these are in the 972 and 447 country codes (yes, we work mainly in Israel and the UK). At the backend, our servers are analyzing the data in real time, generating an active alert in the case a DID number’s statistics change in a somewhat drastic change, thus, establish a traffic anomaly. Another thing that interested us was our usage across multiple servers, which we are exhibiting in the below graph:

Now, as you can see, the top graph shows a discrete anomaly:

This anomaly indicates something went wrong on all our servers between 00:45 and 1:15, which gives us a fairly discrete period of time to seek for a problem in the system. What happened was that one of the guys updated a portion of the data traversal API – basically deleting it [we resumed full work after about 40 minutes].

So, where is it all going to? well simple, a new Open Source based service that we’ll be launching within a few months from now. Our intention is to provide a means for simple, straight forward, highly reliable, call analytics, fraud management and profit leakage analysis service. A service which is based upon a simple to use API on one hand and Open Source based data gathering agents. Our belief is that by analyzing large amounts of data, from multiple sources around the world, we’ll be able to ascertain the fingerprint of a telecom bound attack – being able to alert the respective users of the service and maybe in the later future, also provide a means to block the attack as it advances across the world.

I’ll be updating about our advancement as we go along, but for the time being, this is something I felt would interest you.

When most of us think about PBX systems, we usually associate these with cumbersome usage, confusing dialing codes and in most cases – a PBX system is automatically associated with the annoying task of transferring a call from one handset to another. Lately, I’ve been thinking deeply about how people use PBX systems, is this really the only way to use a PBX system? is there something else to the mix? can we really enrich one of the oldest operational paradigms in the world? – and for that matter, can the public be re-educated to assimilate a new breed of PBX systems or services?

As to answering the question of re-educating the public, I guess I’ll have to leave that question to the head shrinks. As to answering the latter, enriching the PBX experience is both achievable and advisable. When I say enriching, I mainly talk about your ability to bring to the IP phone functionality usually not associated with it. Imagine to have the ability to receive a stock exchange RSS feed to your phones idle screen, notice that you stock is either rising or falling, and by the flick of a button – either sell or buy. We’ve all come accustomed to IP phones that look like the one of the right. A whole bunch of buttons, that in most cases have no direct use when our phone is utilized using a single account. However, these buttons can be externally re-assigned and re-programmed to achieve greater functionality – surpassing the normal behavior of just making phone calls.

The technology involved exists on almost every high-end IP phone on the market (well, at least those made by SNOM, Aastra, Cisco and Polycom – most of the Chinese makers don’t have this) – it’s called a Mini Browsers. Mini Browsers are exactly what they are called, these are simplified versions of your typical Internet browser. Some vendors had produced their own XML based Mini browser markup language (SNOM, Cisco, Aastra) while others had decided to provide a sub-set of XHTML (Polycom). The variations between the vendors are at the neck deep of the problems of using Mini Browsers, and that is that the formats are considerably different. Sure, SNOM had more or less adopted Cisco’s general structure, however, it still varies.

Through the utilization of this technology, it is possible to create phone based browser applications, that seem native to the phone user, as the general interface resembles the native phone interface. It is now the developers job to make the web interface displayed to the user as seamless and as native as possible, keeping in mind that the developer must remain agnostic to the information retrieval layer. Most companies leave their phone systems and these tasks to their system administrators and infrastructure team, however, this task is far beyond their capabilities and skill set. Creating an agnostic IP phone minibrowser dislplay layer, capable of utilizing multiple vendors and models, is a question of content management and content rendering, very must similar to the content transcoding problem that is common to the mobile content world – in other words, a sys-admin will create an ad-hoc solution, a programmer will create a proper, well structured, well designed solution that carry the enterprise beyond its initial needs and requirements.

A short example of how these interfaces work can be found here – on my company blog.

If there is one thing I like doing is testing hardware, specifically, testing new hardware that is related to Asterisk. I was more than pleased when OpenVox had approached me, asking to review one of their products – specifically after I once announced that I really dislike cheap clone cards. So, I got OpenVox’s D210P card, which is a fairly similar clone to the TE205/TE210 of Digium, and I decided to take a it for a test drive.

So, first off, lets take a look at Digium’s TE205 card:

Digium TE205P Card

The card is based upon two specific chips, the Xilinx Spartan FPGA and an Inifineon based Quad E1/T1/J1 framer chip. Technically speaking, the entire brain of the outfit is located in the Xilinx FPGA (naturally), which on the TE205P now enables remote firmware upgrades and some additional features. Digium had been using Xilinx based boards for over 8 years now, and they’ve been doing the job more than well.

Now, let’s take a look at the OpenVox clone board:

OpenVox D210 Card

The Test Scenario and Comparison

All of the above tests were conducted according to the following scenario:

Testing Lab Server

In general, I’ve connected 3 different IP phones to the testing server: A Polycom 650, a SNOM 370 and a Grandstream GXP2000. All IP phones include the latest firmwares and updates and were all working flawlessly with another similar setup, so I assumed they were all bug and issue free for the testing lab. The main reason I’m using 64Bit CentOS is simply due to the fact that all my servers are 64Bit capable (mainly E5410 and E5405).

Test 1: Normal Telephony

Well, in general, the card does exactly what it should – provides a connection to an E1 circuit (we only have E1 circuits in Israel). I’ve conducted normal telephony functions from all the above mentioned phones. In general, I’ve conduct from each phone a total of 40 calls, and repeated the test once for the Digium TE205P card and once for the OpenVox D210P card. The results were fairly similar with a slight advantage for Digium. In general, the OpenVox card had slipped about 4% of the calls, mainly to an IRQ miss that occurred for some reason. With the Digium card, the IRQ misses were not exhibited, allowing for all 120 calls to traverse normally.

Conclusion: In a normal office telephony scenario, the D210P is a fair choice – however, not my preference for a Call Center or a service provider.

Test 2: 3G based transmission (64kbps bearer capability)

I’ve been playing around with IVVR and Asterisk, mainly using the Fontventa H264 packages for Asterisk (that’s why I used 1.4 branch). With this test, the D210P provided less then medium results, specifically when trying to stream large 3gpp based video streams, while the TE205P had showed no specific issue with the transmission. Main issues exhibited were related to choppy video streams, causing jumps in the stream. The Digium card was fully capable of stream the video without a hitch. Now, I won’t hold this again OpenVox, as this usage is fairly advanced and is required by a very small portion of the market, but I believe they still have some work to do there. As they are using the same framer as Digium, I would deduce that their firmware is either an older import from Digium (reverse engineer) or some other firmware related issue.

Conclusion: Not a pick for 3G transmission with Asterisk.

Test 3: Dropped calls during high loads

No matter what test I did, with OpenVox I’ve always received a dropped call ratio of around 3-4% – when at high loads that went up to around 7%. When I mean high loads, I mean generating 30 outbound calls from Asterisk to one circuit, then receiving them on the second port (yes, a back-loop). I’ve conducted 100 runs of this test, at various speeds. It would appear that when generating calls with a 100ms interval between one initiation to another on the circuit, the OpenVox will drop a call here and there – at sporadic intervals. This may be actually related to the IRQ misses exhibited in Test 1.

Conclusion: If you have high load anticipated – OpenVox is not the choice for you.

Test 4: CPU Load/Spikes

It is a well known fact that all card that are used with Asterisk introduce load spikes of a sporadic nature. In the past, the masters of low spikes were Sangoma, however, with the introduction of Digium’s VoiceBus, that balance had tipped and Digium took the upper hand. In order to evaluate the spikes, I’ve monitor the machines’ load while having 30 calls traverse from one port to the other. The calls were playing back a static file of 5 minutes, and after disconnecting the calls would generate and additional one and continue from there. Both cards exhibited slight spikes when multiple calls either originate or disconnect, however, the CPU spikes that the OpenVox card had exhibited were about 40% higher than the ones exhibited by Digium and there were more spikes than with Digium.

Conclusion: If your system isn’t as beefy as mine, and you need full capacity – OpenVox isn’t the choice for you

Overall Operational Conclusion

The OpenVox card promises to be a low-cost alternative to the Digium card, and it surely delivers. Over all, if you have an office PBX system or a low scale IVR environment, the OpenVox alternative can be evaluated, although it’s not my personal favorite. Sure, in many cases I can say: “OpenVox would do the job” – but hey, I would always rather go with the original and not the clone. I believe that OpenVox are far ahead of its clone competitors (Atcom, Yeastar, Varion, PhonicEQ, etc), simply because it does a better job at building and designing a better card – however, they still have some way to go in order to be completely in-lined with Digium and Sangoma.

Over the years I’ve seen many scams running on the net. Ranging from the ever annoying chain mails to the ever popular Nigerian Sting – Internet fraud is all around us. Lately, I’ve been hit by a new type of fraud attack, a domain registration fraud attack – mainly located in China and Hong-Kong.

As you may know, I’m the owner and CEO of a company called GreenfieldTech, dealing with Asterisk and VoIP application and platform development. Now, we operate world wide and render services to some of the world biggest brand in the telecom industry. So, we take our copyright and brand very seriously, when we receive an indication that someone is or may be infringing our copyright or brand, we take a stand for it.

So, today I’ve received this email:

Dear CEO, 

We are a domain name registrar centre in HongKong,and in charge of the registeration in
Asia, We have something important need to confirm through your company. 

We received a formal application from a company called "Hempus International Holdings
Ltd" applying to register 

Internet keyword :     greenfieldtech 

Domain names :

 greenfieldtech.asia    
 greenfieldtech.cn    
 greenfieldtech.com.cn    
 greenfieldtech.hk    
 greenfieldtech.in    
 greenfieldtech.mobi    
 greenfieldtech.net.cn    
 greenfieldtech.tw

In China and also in Asia on January 21 2010. During our auditing procedure we find out
that the alleged "Hempus International Holdings Ltd" has no trade mark,Intellectual
property, nor patent even similar to that word. As authorized anti-cybersquatting
organization we hereby suspect the alleged "Hempus International Holdings Ltd" to be a 
domain grabber. Hence we need you confirmation for two things:

First of all, whether this alleged "Hempus International Holdings Ltd" is your business
partner or distributor in China.

Secondly, Whether do you need to protect the intellectual property right which should have
belonged to you?. (The alleged "Hempus International Holdings Ltd" will be entitled to obtain
a domain not needed by  original trademark owner.)
If you are not in charge of this please transfer this email to appropriate dept.in order to
deal with this issue better, please let someone who is  responsible for trademark or domain
name contact me as soon as possible.
_____________________________________________________________________________________________
 Confidentiality Notice: This is a letter for confirmation. If the mentioned third party is
 your business partner or distributor in China please DO NOT reply.  We will automatically
 confirm application from your business partner after this audit procedure.we have to notify
 you,and our registration organization are  not responsible for any dispute questions about
 trade mark,intellectual property nor patent after they succeed in registration.hope you can
 understand.thank you.
 ____________________________________________________________________________________________

Sincerely,
  kaka.xu

Sponsoring Registrar:sk holdings company ltd 
 Web:www.sk-dns.org/www.asia-gov.com
 Tel:00852-95660489 / 00852-95660103 
 Fax:00852-30696940

Email:kaka.xu@skdns.org/

Address: 3A, Units 20/F, Far East Consortium Bldg, 121 Des Voeux Road, Central, Hong Kong

kaka.xu

2010.01.21

So, this is obviously a scam, as when I searched the alleged company, I couldn’t find anything. However, the term “International Holdings Ltd.” had produced many scam alerts and related information popped up everywhere. Now, bear in mind that this is the 10th time them past 2 months that I’m receiving such emails. So, I’ve formulated the following response to them, and you are welcome to use it:

Dear Kaka,

Thank you for contacting us in regards to this matter, to be completely frank with you,
we’ve received over the past 2 months a similar request/demand from various Asian registrars
in China/Hong-Kong. Through our contacts in the far-east, we’ve concluded that your
request/demand is fraudulent, and that the company you indicated doesn’t even exist.
Please note that your approach to us claiming that someone wants to infringe our copyright
and brand had been noted and passed to our legal department. In addition, we’ve forwarded your
email and general company information to various SPAM, Abuse and Security teams that are in
contact with us around the world (mainly, [Mention your really BIG business partners and
large customers here - also through in some ISPs in the far-east, specifically China). Should
your company register ANY of the below mentioned domain names or keywords, following this email,
we shall be forced to follow legal actions in accordance to the laws of the state of [Put your
country here] and other countries where our company has representatives or local business
engaged partners.

P.S.

[Always add a personal note - and refer to something in the mail they sent, for example]

On a personal note, when sending emails to anyone in Israel, I would suggest that you choose a
different name, other than Kaka. Kaka in Hebrew is directly related to the bodily function of
purging waste – also known as taking a dump in the toilet.

Recently, I had to install the CheckPoint SecureClient on my notebook, which is currently running Windows 7 (ok, a linux guys running Windows 7 is something completely different, but let’s talk about that later). In any case, I’ve gone into the CheckPoint website, looking for SecureClient, and got a really funny Seinfeld flash-back:

This kinda reminded me of this:

Today I got the chance to speak at a Polycom half-day convention, mainly to speak about Asterisk and HDvoice. Now, putting aside the part about HDvoice (I’m getting a post about that on its own), I gotten to the point where I believe that I’m currently perceived as being an eccentric.

So, why am I eccentric? very simple, I’ve reached a point where I can say things that may be perceived as rude – and write it off an being an eccentric quirk.

I’ve talked about Asterisk ability to support Video, while the current Polycom VVX1500 video phone isn’t yet supported at its fullest. One of the people in the crowd mentioned some sleezy,al-cheapo, SIP Video phone (to be more exact, he’s the local distributor) – and I claimed that I don’t count that phone as a comparison to Polycom or other VoIP Video phones, simply because in my view it’s not a worth while comparison. Comm’on, let’s be realistic, can you compare a Polycom VVX1500 (an HDvoice Video phone) with some shitty sub-VGA SIP Video phone from China? the mere comparison is simply insulting for Polycom.

Shortly after negating that phone, the person stood up and left the room. At the break, a friend said to me that I shouldn’t have said that, in order to come out the bigger man. Common, the guy is surely making a joke of himself. I commented: “I’ve said what I said, I stand by my opinion – besides, you know I’m eccentric – eccentric people say eccentric things” – he agreed that I’m eccentric, after all, you can’t be an Open Source evangelist without being an eccentric – now can you?

Ok, it’s day 1 (or actually day 2) for AstriCon 2009 – and here’s my report for the day.

Yesterday was kind’a of a hectic day for me, as I was teaching a full day track of Asterisk and Cloud Computing, specifically, implementing Asterisk systems with Amazon EC2. I started the day with a class filled with 20+ people, and ended the day with a similar number – so in general I’m very happy. Not many people tend to attend the pre-conference days, so having that number of people and their positive reactions through out the day were very reassuring to me.

If there is one thing I’ve learned from this experience, it is the following: If you give a full day track, don’t arrive at the hotel 24 hours prior to it – you need at least 48 hours! People didn’t really notice (I hope), but through out the day I was suffering from a splitting headache – one that would usually send me right into bed with a couple of Advil’s. But hey, that didn’t stop me and I powered through it, I’m fairly proud of myself for doing so – as at the end of the day I regained back my strength and was livelier.

Today was the first official day of the conference – I gave the opening talk for the Cloud Computing track of the day. My talk was about how to build “IP Centrex” like services, without building an “IP Centrex”. I guess that I didn’t really introduce a brand new concept, but actually talked about something that many are thinking about, but are not inclined to try it on their own and burn some cash on. I guess my talk helped them out saying: “Hey, we’re not talking out of our asses here, this guy makes some sense and what we thought of isn’t that far fetched”.

Previous to that, Digium announced the 2009 Digium innovation award winners, where my company won an award in the pioneer category. This is the second year in a row my company had won the award, and I’m really happy with being acknowledged for this specific work. Having being a part of the community for over 7 years now, this award, at least to me personally, says a lot – it’s basically saying: “Look, you’ve done good, you’ve done some work that really helps out the project and the community in general – here’s a beer and a toast to you – hip hip” – well, that’s kind’a of a mouth full, but you get what I mean. I think that this is actually the place to mention that the award was for developing a high-powered Dialer/IVR platform, used in the Israeli elections and the work was contracted for a company called Shtrudel.

The all conference party is tonight – so I better rest up and be ready for it – should be fun. I guess beer and food are always a good mix when a bunch geeks are getting together

For those of you who know personally, you probably already know that last month I became a father. I guess the transition is something that I was more or less ready for, at least on the technical terms of the transition. However, the thing that completely surprised me was the mental transition – which isn’t even related to the somewhat lack of sleep here and there.

So, here I am, about a month and half away into the final touches to our new home, spending the weekend deploying over 100 meters of CAT-5 cabling in the house – yes the house is network rigged to the teeth. I’m sitting in my daughters room, clamping away the wall sockets for the network, thinking to myself: “hmmmm…. will Nitzan need a single network connection? or should I put at least two for future usage? … hmmmm…. well, I guess time would tell”. In any case, so there I was, spending most of my weekend being my own geeky self, thinking about wiring, networking, wireless exposures, access points, etc. I then go back home, and suddenly, all that disappears the minute I put Nitzan on my shoulder to burp her. It’s really funny, but with her on my shoulder, I guess everything goes away for a few minutes. My brother-in-law informed the house that he caught me burping Nitzan, while sitting at my computer answering emails with the other hand – Ok, so I can’t stop being a geek all together.

In any case, here I am juggling the various aspects of being a father to a new born baby, attending to the various tasks required to final touches of the house (painters, cleaners, air cons, dry walls, etc) and of course, attending to my customers – some of which are completely ambivalent to the fact that I’m under a constant lack of sleep in the past month. Well, I guess in a couple of months Nitzan will start sleeping better, and would make life easier for both me and my wife; in the mean while, we take comfort with the sleep periods my wife gets during the day, so that I can work and cater to my customers, while she caters to Nitzan during the nights – and I have to be honest about this, when it comes to the baby, my wife is the closest thing to a Jedi Knight, her ability to stay focused and clam even when the Nitzan is screaming is amazing – I can’t always do it.

Ok, enough about the house and Nitzan, let’s go back to been geeks for a bit. As you can see on the right hand side of the blog, I’ll be speaking at the up-coming Astricon. I’ll be giving a talk about how to build “IP-Centrex” like installations, utilizing Asterisk and tools like VMWARE, XEN and OpenVZ. However, while my talk may be interesting to you (I hope), my pre-conference tutorial will be much more interesting. I’ll be giving a full day tutorial, teaching people how to install Asterisk in a clouded environment (cloud computing), mainly the Amazon EC2 cloud computing infrastructure. For those of you reading this blog, you may have noticed that I’ve developed a distinct interest in the Amazon EC2 cloud, which I’ve written about several times and also lectured about at Amoocon. While my Amoocon presentation was mainly informational, at Astricon I’ll be primarily teaching you how to do what I did. Well, I won’t be teaching you the inner workings of the GreenfieldTech IVR API framework, although, if you’re gonna ask questions I will answer (especially if you ask the question 3 times, I can’t stand it when people ask the same question 3 times – I just have to answer it – nudge nudge).

Ok, back to fatherhood and Nitzan stuff. The mental transition that I was referring to before is something that I felt last night in its most force. My wife and I decided to go to one of the malls, not far away from our house. So, we entrusted Nitzan with my in-laws and drove to the mall. The mall I’m referring to is called “The seven stars mall” and we like it. It’s not a big mall, but its got this shop called DOMO, that carries these high class cooking ware (my wife and I really like to cook – my chilli con-carne is well known). So, here we were walking the mall, after I ordered a pair of shoes that I needed. So, my wife comments: “You know something, let’s see if there is some sale at Super-Pharm.” – and then we ended up purchasing baby formula, pacifiers and baby wipes. I then asked my wife if she maybe wants to walk into DOMO, but we both didn’t really think about it – suddenly, something that was like a default prior to Nitzan is no longer a default – interesting isn’t it?

In any case, this is how my life looks like at this point in time – and I have to admit that I kind’a like it. Sure, I don’t get as much sleep as I got before, but hey, I’m happy with it – so I just keep on smiling and go on forward.

Cellcom

Since early 2006, an ever increasing competition between the local PTT carriers in Israel, had introduced an unlikely friend to the Asterisk community in Israel. While Cellcom, one of Israel’s largest cellular carriers, isn’t closely associated with the PSTN market – it’s entrance to the local PTT market, especially into the E1 PRI market, had introduced the most unlikely friend to Asterisk.

Cellcom’s highly aggressive marketing techniques, rapid deployment of skillful sales agents and a highly motivating sales campaign – had yielded a migration of many customers from the local PTT carrier (Bezeq) utilizing Analog lines with traditional PBX systems, to low cost, PRI circuits provided by Cellcom, with low cost Asterisk based IP PBX systems.

Now, coming 2009, Cellcom had sprung up a new marketing campaign for their new service line: all-in-one Internet access and telephony service for your home. The service is rendered via the utilization of an OPTION GlobeSurfer II devices, allowing you to connect your home wireless network and an analog phone directly to the device.

OPTION GlobeSurfer II

So, why is Cellcom becoming a better Asterisk friend? very simple, the usage of the GlobeSurfer II device, in an SMB environment is the ideal companion for a small time Asterisk installation – in the office. Each GlobeSurfer devices allow us up to 2.4Mbps of downlink Internet with 384kbps of uplink – and a dedicated phone line. All of this, for a low cost of 29$ per month (give or take a few dollars). By all standards, that price is lower than any of the high-power uplink Broadband connections in Israel – thus, this is an ideal choice for a small office. Now, all that we need to facilitate an office of 4-6 people, is to have two of these units, get a router that can support multiple (2 or 3) Internet uplinks – walla – we have the perfect office communications suite. Another added value is that our office is now truely mobile – we want to move offices, no problem, takes 10 minutes to move the offices and start working again. Now, the only thing that’s missing from the mix is the availability of static IP addresses on the link, and you’ve got a serious potential looking at the new PTT killer in Israel – Wireless Internet and telephony to go – at a price you can afford.

Other questions that remain are:

1. Will Cellcom allow for a single mobile number/landline number to be associated with multiple SIM card gateways such as this, allowing for office redundancy and maybe in the future true IVR capabilities?
2. Will Cellcom allow its customers to aggregate more bandwidth in the future, allowing for true VoIP services to operate using these units?
3. While the units are fully capable of rendering up to 7.2Mbps downlink and 2.4 Mbps uplink, Cellcom is limiting these to 2.8 Mbps downlink and 384kbps uplink – will they increase that in the near future?

All things considered, I believe that this unit will make Cellcom into a new contender in the market, allowing for new residential services and competition to exist – in other words, the heat in the Israeli residential and SMB market in on – let’s get cooking.

I recently gave a presentation at the Amoocon convention, held in Rostock, Germany – about Asterisk and Amazon EC2. Below is a medium quality video of that presentation:

or you may download it here:
Amazon EC2 and Asterisk video files