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The
re-initiates the precondition procedure whenever the ingress side Session Description Protocol (SDP) changes due to an 18x/200 OK or UPDATE received from the egress side. The uses this UPDATE message before sending 200 OK to INVITE towards ingress instead of using the RE-INVITE message....
Enable the preferUPDATEOverReINVITE parameter to use UPDATE instead of Re-INVITE on the ingress to communicate SDP
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when the call
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transitions to the confirmed state.
Command Syntax
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% set addressContext default zone <zone_name> sipTrunkGroup <siptrunkgroup_name> signaling preferUPDATEOverReINVITE <enabled | disabled> |
Command Parameters
| Caption |
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| 0 | Table |
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| 1 | preferUPDATEOverReINVITE Parameters |
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| Parameter | Description |
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preferUPDATEOverReINVITE | Enable this flag on the ingress trunk group to allow the to use UPDATE instead of Re-INVITE to communicate SDP towards ingress |
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when the call is in the confirmed state. The options include: Note: |
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This flag is not applicable when either the dialog transparency flag or |
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Command Example
| Code Block |
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% set addressContext default zone ZONE_INGRESS sipTrunkGroup TG_INGRESS signaling preferUPDATEOverReINVITE enabled |