GoIP User Manual
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61
Appendix E.
CID Call Forward
For incoming GSM calls, the phone number of the caller can be displayed at the called party (SIP terminal).
The device supports the following two methods.
Unfortunately, not all SIP servers support one or both
methods.
Please check with the vendor of the SIP server for more information.
1. Remote Party ID - This is a parameter in a SIP INVITE message.
Choose this if both SIP Server and SIP
terminal support this parameter.
Example: Caller ID / number = 13800000000
The Remote Party ID parameter is included in the SIP INVITE Message below.
2. USD CID as SIP Caller number - This parameter specifies the use of GSM Caller ID instead of its SIP
number in the INVITE message when making a call.
Please make sure that the SIP server supports this
type of INVITE message since the call now is not originated from a valid SIP number defined in the server.
Please note that the Remote-Party-ID is also included in the INVITE message.
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