GOIP-16 GSM VoIP Gateway avec SIP et Terminal de passerelle SIP et H323
syi.goip is for call business, at/ussd command balance enquiry, billing gsm gateway work for call center and sms receive and work with simbank for remote control goip gsm gateway work for voip temination and bulk sms,monitor voice asr and acd goip voip gateway to do call forward, sms forward, intercalling/ intersending system for decreasing sim block the voip gateway operates through its own system and is multi-functional, supporting ussd, at commands, imei automatic modification and remote control.