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2. The SMS sent to the COIP from the SIP is forwarded to the specified PSTN number.
The following example is about the
Hello world
sent from SIP 3999
to
13682626800
.
Where,
in the content of the SIP message (in red), the first line indicates the number to receive the
SMS. The second line indicates the content of the SMS.
MESSAGE sip:[email protected]:5060 SIP/2.0
From: <sip:[email protected]>;tag=5031
To: <sip:[email protected]>
Call-ID: [email protected]
CSeq: 3 MESSAGE
Contact: <sip:[email protected]>
max-forwards: 16
date: Tue, 18 Nov 2008 06:36:37 GMT
user-agent: SIPPER for 3CX Phone
p-hint: usrloc applied
Content-Type: text/plain
Content-Length: 26
13682626800
Hello world
Note: The SMS forwarding mode of the COIP is only functional under the SIP protocol.
3.10 Transparent Transmission of PSTN Caller Numbers
The COIP permits the transparent transmission of PSTN caller numbers to the VoIP system in
various methods.