We currently have CM 4.13 with Unity 4.05. Unforturnatly, after we made numbering plan with 9XXXX many people calling 911 with mistakes. Now, we like to change/modify CallManager and Unity configuration so number will use 6XXXX instead of 9XXXX. We are getting only 4 digits from PSTN and we just need to change 9 to 6 for all the phone and ata numbers including user configuration. Is there any easy way?
Thanks in advance!