Use this parameter to specify the SIP variant type.
Command Syntax
% set addressContext <name> zone <name> sipTrunkGroup <name> signaling variantType <mgcf | q1912 | sonus | ttc | uk>
Command Parameters
Variant Type Parameter
Parameter | Description |
---|---|
variantType | Select the SIP variant type to use for this SIP trunk group.
|
JJ90.30 Support from TTC Variant Type
Appendix ii.3 Interworking of Number Portability Information
Based on the JJ90.30 specification, when variantType
is set to ttc then the following mapping applies:
For SIP to ISUP
- INVITE sip: + 81312345678;npdi;rn=+8134512345@example.ne.jp;user=phone SIP/2.0
- The rn parameter gets mapped to the called party number
- The R-URI gets mapped to the called directory number
- The SBC generates the redirection counter parameter with the value of 1.
For ISUP to SIP
If the called directory number parameter is present then it gets mapped into the R-URI, and the called party number is mapped into the rn parameter and the npdi parameter is included.
Overview
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