My proxy provider is digisip. In Asterisk I use the following line to register: Code: register => 08xxxxxxxx:password:email@example.com/1000 So I want to set something similar up in 3CX but as I add : to the userid it gives away the ASCII code 3A instead. My log says like this: Code: Registration of 08xxxxxxxx%3Apassword%3A16xxx@proxy.digisip.net has failed; reason=Unauthorized. Any suggestions? Is it the DB that doesnt handle the signs?