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This is our standard SIP trunk header configuration.
Inbound SIP Header
Name | Value |
---|---|
Inbound User-Provided Number | P-Preferred-Identity (PPI) |
or FROM Header | |
Inbound User-Provided Redirecting Number | Forwarder's NPN / Received Diversion |
Beware: Inbound means the direction from your SIP client to our SIP server.
Outbound SIP Header
Name | Value |
---|---|
Outbound From-Username Field | UPN (User-Provided-Number) |
Outbound From-Display Field | Received Display-Name |
Outbound PAI-Username Field | UPRN (if set) or NPN |
Outbound PPI-Username Field | NPN (Network-Provided-Number) |
Outbound Diversion Header | UPRN (User-Provided-Redirection-Number) |
Outbound History-Info Field | UPRN (User-Provided-Redirection-Number) |
Outbound To-Username Field | Called user |
Beware: Outbound means the direction from our SIP server to your SIP client.
Other Values
Name | Value |
---|---|
Use valid Alias CLI as NPN | yes |
Incoming Dialed Number Matching | Extended matching, send dialed number with extension |
Add user=phone to calling number | no |
Add user=phone to calling number | no |
Skip UPN check on Diversion | yes (If user in received Diversion or History-Info is in callers's alias list) |