IPhone Jabber client not showing internal extensions just the Alerting Name

Question

I have customer calling from a 7965 to his desk phone 7965 which shows both Alerting Name and Extension, he also has an iPhone/Jabber Client on WiFi (no cellular involved). The iPhone client shows the Alerting Name from the 7965 but doesn’t show the 4 digit internal extension. Is this a known issue?

Answer 1

Dear Miro,
The issue has nothing to do with the server it's the client, Lync 2013 issue with caching data and the way its reading it back from the cache.
Work around:
just create a new client policy using the command new-csclientpolicy with AddressBookAvailability  "WebSearch" only.
"New-CsClientPolicy -Identity TestCsPolicy -AddressBookAvailability WebSearchOnly"
assign the policy to your test client, delete cache folder at the client end.
"Grant-CsClientPolicy -Identity MIRO -PolicyNameTestCsPolicy"
"you can delete sign-in information by signing out and clicking on "delete sign-in info" then sing-in again"
test again. it should work.
if it didn't open contact card and check if the the client is getting the data correctly.
yet i didn't find another fix to the issue with lync 2010 client everything works just fine without any changes.
Regards,
Nader Barakat