Categories Asterisk community GPL open source technnology Hardware Review: Allo.Com GSM Card Post author By Nir Simionovich Post date February 17, 2014 No Comments on Hardware Review: Allo.Com GSM Card Tweet Tags Allo, Allo.Com, Asterisk, digium, Elastix, Fonality, FreePBX, GreenfieldTech, Linux, open source, OpenVOX, sangoma, TrixBox