[cisco-voip] How lines are selected when going offhook

[Erick Bergquist]

Hi,

I have a question on how CM or the phone
selects/chooses what line goes off hook when a user
lifts handset or presses messages button. 

I am aware of auto-line select, and globalservice
parameters prime line and prime line for voice mail. 

We had issue at site with 3.3(4)sr2 where they were
working fine for months and this morning with no
changes supposely, 3/4 of the users when they hit the
messages button it was no longer using their first
line to go to VM. It was using the 3rd or 4th line on
phone which is their main number and a shared line.
This was calling number being sent to unity.

I set the option use prime line for voice mail to true
(default is false) and that fixed it up as expected.
Just trying to figure out what may have caused the
phones to start using the other line all of a sudden
and why that line. No errors in event logs. Also half
of these users did not have a user id in global
directory as it is just a call manager and no device
associations. 

Thanks. erick


		
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