VoIP - Local Extension Dialing

Centrex

This allows you to use the last 1, 2, 3 or 4 digits of your phone number to call other numbers in your block. e.g. if you have 2 numbers 01344400001 and 01344400002, then you can call each other by using 001 and 002 if you set Centrex to 3. This is also used when you transfer calls between your numbers.

Be aware though, that it will also allow you to call other numbers that you may not own - eg, if you have 2 numbers 01344400001 and 01344400002 and you dial 006, then it will dial 01344400006 which isn't your number but someone else, this will also dial out to external numbers.

Also, if you have centrex set to 4, then our 4 digits short codes (eg 1571 for voicemail recording) won't work as we'll be dialling that number instead of accessing voicemail.

This does not work if you have numbers in different blocks.