I have a Vigor2920Vn which I upgraded to v3.3.7 a month or so ago. Since then Caller ID has stopped working on any SIP number
I've played with a lot of the config over the last year and so decided to do a factory restore today to try and get it working again.
No joy. Any ideas if Caller ID is a bug in v3.3.7 or have I got another problem?
Thank you in advance.