Where can I go to change my # of rings on a phone before it goes to vmail? I've looked in enterprise param's (set "ring settings -> True under CCMUser Params). Looked under individual line settings found nothing.
To add a note to the good info from Kenneth (5 points for this KM)
Here is the way to change this, "System Wide" just in case :)
Go to Cisco CallManager System Parameters from the Cisco CallManager Administration page. Select Service > Service Parameters.
Select the server to be your IP address and the service to be Cisco CallManager from the drop-down list.
Select Forward No Answer Timer (sec) from the list.
In the Value field, insert the timeout that you would like to configure (the time must be inserted in seconds). The default is 12 seconds.
Click Update on the top of the page.
Note: You do not need to restart the Cisco CallManager service to implement the changes.
From this good doc;
Hope this helps!