How to change the default play on phone number used by Exchange UM?
A couple of months back my workplace decided to embark upon OCS federation and the enablement of public Live Meetings, a little late to the party I know – but better late than never! 🙂
When we originally planned our deployment (3 or so years ago) we decided to use internal SIP addresses only (i.e. email@example.com) so as a part of our move toward OCS federation we were forced to shift to public facing addresses (i.e. firstname.lastname@example.org). This of course resulted in a change to our existing SIP addresses and two migration pain points:
- Live Meeting scheduling data was now invalid and required updating (manual intervention seemed to be the best option here)
- Default Exchange UM addresses, stored within Outlook, were incorrect. I’ll go on to explain this in more detail
The scenario I am depicting here is one where you initiate a play on phone call via Outlook and you are presented with the dialogue below:
Given that my SIP address has changed to email@example.com this UM call would no longer route correctly. Therefore every time play on phone was initiated I needed to manually change the drop-down list to firstname.lastname@example.org – which becomes very annoying over a prolonged period of time.
The play on phone number is initially set by OCS when you enable a user and specify their SIP URI, when SIP addresses are subsequently updated numbers are added and the old address left as-is. In addition the numbers are not re-prioritised – the default number will still be set to the previous address. To change this default setting I at first I started crawling the registry and discovered multiple references to my old SIP address – I realised pretty quickly that the scope for damage was high and chance of success low-to-medium! 🙂
I am ashamed to admit that the solution to my problem was far more simple, it was within the Outlook voicemail options (see below):
With this updated my default address for Exchange UM play on phone was now correct and I no longer needed to fiddle with the drop-drop. 🙂