
VOPTech Document Four Channel’s GSM VoIP Gateway
Copyright@2009 VOPTel Technology Co., Ltd All Rights Reserved.
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One mobile phone’s number is (86)13800000000, it sends a SMS “8675588228822” to
GoIP4’s GSM SIM card. When GoIP4 device receive this SMS, it will auto to call number as
9998675588228822, and the caller is number 8613800000000.
The sent out signaling as follow:
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Mode 2 example:
GoIP4 use SMS Dial Mode 2:
One mobile phone’s number is (86)13800000000, it sends a SMS “8675588228822” to
GoIP4’s GSM SIM card. When GoIP4 device receive this SMS, it will auto to call number as
8675588228822, and the caller number is GoIP4’s SIP account number.
GoIP4 will set the SMS sender number to “Call Divert “option’s “Forward Number (VoIP
to PSTN” automatic. The result is, when SIP server receives the SMS call and call back
this GoIP4 then GoIP4 will auto call the SMS sender via GSM network.
The sent out signaling as follow: