Extension mobility - Call routing issue (get UPA without MLPP)
we have a 8.6.1 CUCM Cluster with EM enabled.
It works as expected but, sometime some users on some (random) phones are still able to login but they are not able to place the call and they hear the message "the precedence used is not authorized for your line, please use an authorized preference or ask your operator for assistance"
IF the same user logins to another phone (with the same device CSS, device pool, etc configuration) the user is able to call.
The only workaround we found is to delete the phone from CUCM and rebuild it. With this procedure the call are routed as expected.
Any help to find a better solution will be greatly appreciated
Thanks in advance
I added the trace of a disconnected call: but I'm not able to find any particular reason for the disconnection.
from phone SEPXXXXXXX (internal number ABCD, fqdn 0XYZWKABCD) to external 000NNNNNNN
issue appears randomly on different models of working phones (7942, 7960 and 7965). AFAIK they have the same firmware version, the one they get from CUCM: We are able to solve the problem deleting the phone from CUCM and then re-creating it. Tomorrow I'm planning to investigate further using RTMT and tracing logs from a failing phone...
IntroductionCUCM Routing RulesDial String implementation PolicyCUCM Routing LogicSIP URI Call Routing Analysis+++ Case Study: 1 ++++++ Case Study: 2 +++Conclusion
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