By default custom caller ID names will get clobbered by this diaplan if no number is set. This is potentially problematic if you just want a custom caller ID name set for multiple extensions using the default caller ID number.
* Modify ivr.conf.lua to allow changing the direct dial matching digits from default settings
This is needed to allow using direct dial with IVR options that overlap the default regex pattern.
* Add in the new direct_dial_digits setting to allow changing what triggers attempting a direct dial in IVRs
Andrew Querol