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Prior to SBC 8.1 , the
The sendrecv
to ingress when it satisfies the following conditions:
performPrecondtionRenegotiation
flag is in enabled state on the ingress trunk group.% set addressContext default zone <zone_name> sipTrunkGroup <siptrunkgroup_ingress_name> signaling performPrecondtionRenegotiation <enabled | disabled>
preferUPDATEOverReINVITE Parameters
Parameter | Description |
---|---|
| Enable this flag on the ingress trunk group to allow the Unable to show "metadata-from": No such page "_space_variables" to renegotiate the precondition on the ingress when there is a change in SDP during early dialog phase or whenever the call goes to confirmed state. TheUnable to show "metadata-from": No such page "_space_variables" supports this flag for SIP gateway-gateway call.The options include:
Note: This is not applicable when the dialog transparency flag or the Unable to show "metadata-from": No such page "_space_variables" . |
% set addressContext default zone ZONE_INGRESS sipTrunkGroup TG_INGRESS signaling performPrecondtionRenegotiation enabled