Discovery Telecom GoIP - SMS Relay to GSM Network; PSTN Caller ID Transparent

One Chunnel GSM VoIP Gateway
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3.6.2.2 SMS Relay To GSM Network
When GoIP receive a message come from SIP server as follow:
The GoIP will send a SMS to GSM number 13682626800, the SMS content is “Hello
world”.
3.7 PSTN Caller ID Transparent
In SIP protocol, GoIP support PSTN Caller ID transparent to VoIP via SIP Invite signaling;