Errors, such as Message Waiting Indicator or Presence errors, can occur if the sequence of the primary, secondary, third, and fourth Session Managers is not identical to the sequence of the primary, secondary, third, and fourth Session Managers in the Session Manager profile.
Compare and verify the primary, secondary, third, and fourth Session Manager sequence order of the following with the primary, secondary, third, and fourth Session Manager sequence order of the Session Manager communication profile:
Phone settings file
Communication Manager Route Pattern administration
The first trunk choice or signaling Group in the route pattern (Far-End Node Name) must be the primary Session Manager, and the second, third and fourth choice must be the secondary, third and fourth Session Manager.
Note:
If Alternate Failover Routing is enabled on Communication Manager, then Route Pattern administration is not required.
