need ur help

kuwaitvoip
Joined: Mon 19 of Sep, 2011

need ur help

Posted:Mon 19 of Sep, 2011 (22:17 UTC)
im voip reseller i have group of user they can call each for free ,so i need a device or software that can receive calls through the GSM lines and link it to my panel in the voip company
can any one tell me how to do that link the voip server to the GSM line