Four Channel’s GSM VoIP Gateway
37
3.8.2.2 SMS Relay To GSM Network
When GoIP400 receive a message come from SIP server as follow:
The GoIP400 will send a SMS to GSM number
13682626800
, the SMS content is “
Hello
world
”.
3.9 PSTN Caller ID Transparent
In SIP protocol, GoIP400 support PSTN Caller ID transparent to VoIP via SIP
Invite signaling;