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This section helps you to understand the Use this window to define the prescribed behavior associated with various 3GPP P-Headers.

To View and Edit P-Header Extensions

On the SBC main screen, go to Configuration > System Provisioning > Category: SIP Carrier Peering > Signaling > P-Header Extensions. The P-Header Extensions window is displayed.

The P-Header Extensions can be checked for each Address Context, for each Zone, for each Sip Trunk Group created or for all the Address Contexts, Zones and Sip Trunk Groups created. Use the drop-down box boxes to select the desired Address Context, Zone and Sip SIP Trunk Group. The Edit P-Header Extensions window is displayed.

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0Figure
1SIP Carrier Peering - Signaling - P-Header Extensions

 

The following fields are displayedparameters can be configured:

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1P-Header Extension parameters

Parameter

Description

Use Ingress Orig Ca

Enable to honor P-Orig-CA header received on the ingress side.

  • disabledDisabled (default)
  • enabledEnabled

Add Egress Orig Ca

Enable to send P-Orig-CA header on the egress side.

  • disabledDisabled (default)
  • enabledEnabled

Insertp Visited Network ID

Use When the SBC is acting as a P-CSCF, use this parameter to set specify the P-Visited-Network-ID header value when receiving REGISTER, OOD INVITE and OOD non-INVITE requests from UE before the message is forwarded towards IMS core network (for example, visitedNetwork or “\”Visited Network\””) for the SBC to insert in a REGISTER request it receives from a UE before that request is forwarded towards the IMS core network. The value ranges can be up to 255 characters.

Make the required changes and click Save at the right hand bottom of the panel to save the changes made.