I was prompted to enter the mailbox number for voicemail on the 3cx softphone client, I stupidly entered the phone numer of the extension, and now I am unable to change it to the correct VM extension number, I have tried editing the line PBXVoicemail=101 in the local 3CXVoipPhone.ini on my pc, to the correct VM number, however everytime I restart the client it resets back to the 101 that I put in originally. The Server has been changed to a number away from 999 as I am in the uk, however this doesnt seem to carry down. I am guessing it has stored it on the server somewhere, but I have no idea where to start looking, I am a newbee to 3cx and voip systems in general, however a IT technician, I am guessing there is some kind of provisioning file per extension stored? Can anyone tell me how to correct my faux pas. Thanks in advance.