Wholesale 16 And 32 Ports GSM VOIP GOIP Gateway Provider Support SIP/H.323 Protocol With VPN Functio

16 and 32 ports GOIP OverviewA VOIP GSM Gateway (GOIP) bridges voice communications between the GSM and the IP networks seamlessly.In principle,Website:http://www.gsmvoipgateway.com, it consists of a GSM module and a VOIP module. With a SIM card installed, the GSM module registers to the GSM network for voice and SMS services.GOIP comes with various models of 1, 4, 8,16 and 32 GSM channels. When integrating in a VOIP system, GOIP is highly scalable in meeting customer's requirement on the number of channels (lines). In addition with its power functions, high voice quality, and low price, GOIP
Wholesale 16 And 32 Ports GSM VOIP GOIP Gateway Provider Support SIP/H.323 Protocol With VPN Functio