We are implementing a UCM 7.1 cluster that integrates with AD. The telephone numbers within AD are formatted as +E.164 (i.e. +14085264000).
We have issues trying to have users directly dial these numbers from their phone. A translation pattern have been setup to remove the + sign but still calls would fail.
Is there some limitations that IP phone aren't able to dial +E.164 formatted numbers? Directory Lookup Rules are not of much help as well.
Appreciate any feedback.
Thanks and kind regards