0x2957 SIP Request URI User Information Qualifier
Use this TLV to append a user-defined ASCII string to the Request URI user name in outbound SIP calls from the CSP. Specifically, the ASCII string is populated in the user information of the Request-URI header in the outbound SIP INVITE message.
When the CSP is in a SIP/PSTN gateway environment, you can use this TLV to report the terminating trunk group information in a
PSTN-to-SIP call.
If the host provides the Request URI parameters, it must also provide the "To Header" parameters. (See TLVs 0x2919, 0x291A, 0x291B, and 0x291C).
Used in:
0x0033 NPDI Universal ICB in:
Route Control message
Outseize Control message
Byte |
Description |
0, 1 |
Tag 0x2957 |
2, 3 |
Length Variable |
4-7 |
Value[0-n] Null-terminated ASCII string |