Extension Mobility – Login is unavailable (23) – Login unsuccessful on 8851.

[shiva.nyalam]

Symptoms

UCM version is 11.5

Created new Device profiles and End user with BAT and tested on the 8945 and 8845 model in our remote office 1 and they were successfully with EM profile.

While testing on the newly installed 8851 at another new site, we were not able to login with same EM profiles that were built in office 1 before the users.

Diagnosis

Then reset the password for End-user profiles, no luck, again on EU profile delete and rebuilt then it was successful but there are 100 EU which is very tedious and also they are associated with UCCX as Agents.

Solution

 End-user profile, Go to -> Service SETTING option--> home Cluster , Check is required. that fixed the issue. it was very simple to enable on each profile quickly. Issue got resolved.

[jeff.hook]

Thanks for posting!!!  This fixed the same issue I was having for a new user.

[JamesHawkins]

Thanks so much for posting this - it solved my issue after I had been stumped for a long time.

[Maren Mahoney]

Starting with CUCM 11 Cisco added inter-cluster extension mobility using the Intercluster Lookup Service, which requires (just like Jabber) that a Home Cluster is indicated in the end-user account. This step was added to the Feature Guide for Extension Mobility starting with that version, but its easy to miss if you are using older instructions (which other than the checkbox are fully valid) or if you are configuring EM from memory.

Maren