Since firmware version 188.8.131.52, Vigor V models improved the caller ID display method and now it supports showing the symbol +, or replace it with a 3-digit number.
If you would like to the caller ID to display “+”, please make sure:
To set up the substitution for symbol +, go to VoIP >> Phone Settings >>Phone1/Phone2 >> Advanced page, enable Replace + digit in caller ID to and enter a value. The value can be three digits at maximum. Each digit can be a number from 0 to 9.
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