Ribbon recommends using the Transparency Profile to configure transparency on the SBC Core Core for new deployments, as well as applying additional transparency configurations to existing deployments. Do not use IP Signaling Profile flags in these scenarios because the flags will be retired in upcoming releases.
Refer to the SBC SIP Transparency Implementation Guide for additional information.
To configure downstream forking with dialog transparency, use the steps below:
Enable dialogTransparency
on both ingress and egress Zones:
set addressContext <ingress_ac_name> zone <ingress_zone_name> dialogTransparency enabled set addressContext <egress_ac_name> zone <egress_zone_name> dialogTransparency enabled commit
Enable downstreamForkingSupport
on the egress Trunk Group and set forkingBehaviour
to "lastProvResponse
":
set addressContext <egress_ac_name> zone <egress_zone_name> sipTrunkGroup <egress_tg_name> downstreamForkingSupport enable set addressContext <egress_ac_name> zone <egress_zone_name> sipTrunkGroup <egress_tg_name> media earlyMedia forkingBehaviour lastProvResponse commit
Note
The SBC exposes multiple early dialogs on the ingress if multiple early dialogs are present on the egress due to downstream forking.