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, navigate to All > Address Context > Zone > SIP Trunk Group > Signaling > P-Header Extensions.
Use the drop-down boxes to select the desired Address Context, Zone and SIP Trunk Group. The Edit P-Header Extensions window is displayed. The following parameters can be configured: P-Header Extension parameters Parameter Description Use Ingress Orig Ca Enable to honor P-Orig-CA header received on the ingress side. Add Egress Orig Ca Enable to send P-Orig-CA header on the egress side. Insertp Visited Network ID Make the required changes and click Save.
When the SBC is acting as a P-CSCF, use this parameter to specify the P-Visited-Network-ID header value (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 can be up to 255 characters.
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