Staff complaining they can't dial fast enough

Ripping my hair out. Where is the data for the dialplan.xml file coming from? I am able to edit the phone-specific dialplan-[mac].xml files for my 7941 phones using endpoint manager’s basefile edit. However, I can’t seem to be able to find where the dialplan.xml data is coming from for my 7940 phones. If I edit the file manually (to increase the timeout) it gets overwritten the moment I update an extension. The basefile edit for the 7940 has no where to edit dialplan.xml entries. I’ve even snooped in the mysql database to see if there’s something in there I can edit, but noting seems to be working.

Any assistance in finding out where to edit the data for dialplan.xml would be greatly appreciated!!!