We have a UC540. For some reason when we try and access voicemail we get a number unknown and busy signal. The pilot number is 290. I have tried changing it to 291 etc and still no go.
If I do a dial plan test it does pick up 290 and forwards it to 10.1.10.1. I did a voicemail system check and it said voicemail system was up and running.
Attached is our config. Hoping someone might have an idea what might be going on with this?
Any help would be greatly appreciated!