Introduction

Caller ID (caller identification, CID) is a telephone service, that transmits a caller's number to the called party's telephone equipment during the ringing signal, or when the call is being set up but before the call is answered. Where available, caller ID can also provide a name associated with the calling telephone number.

Here you can change the Caller ID like adding a prefix in case of no automatic line selection. Or change the + to 00, there are many possibilities.

Example: Replace the leading "+" to "00"

All number starting with + (\D means Non-digits) remove "+" and add "00"

Example: Add "0" in front of every number.

Add "0" in front of number in case of no automatic line selection.