VOIP GSM to Sip Gateway 4 Port GOIP (GSM trunk interface) with SMS forwarding.
GoIP is the abreviated from GSM over IP. It is a new type of VoIP gateway that alows cal terminations from a VoIP network to a GSM network and vice versa. Cal conections betwen IP networks and GSM networks are now bridged seamlesly to extend the voiceomunication coverage signficantly. As the traditonal PSTN lines are starting to disapear in devloped countries and are not going to be built extnsively in under-devloped countries, GSM phones are groing more and more popularity over the world with lower and lower servic charges, the mergnce of GoIP bridges the gap betwen the traditonal telphone networks and VoIP networks a shown in the diagrm below.
GoIP bridges the GSM and the IP networks by enabling voice communications. It is ideal for VoIP to Local termination where a fixed telephone line (PSTN) is not available or for cell phone roaming via VoIP network. Significant savings on long distance charges can be realized. Some of the major benefits of GoIP are as follows:
Benefits of GoIP:
Here is a link to a howto configure the Goip gateway with Asterisk. http://zr6aic.blogspot.com/2014/11/how-to-setup-goip-148-gsm-voip-gateway.html
Youtube video about VOIP