Hi I have a Quintum AF200 that I have been trying to get to work with 3cx. I have got most of it workin. When I phone from my IP phone to any number, the system seems to be working correctly however when I dial a number with a "0" as the starting digit, I get an error message from my 3cx system saying "Address Incomplete". [CM503015]: Call(3): Attempt to reach <sip:firstname.lastname@example.org> failed. Reason: Reason Unknown [CM503003]: Call(3): Call to sip:email@example.com:5060 has failed; Cause: 484 Address Incomplete; from IP:192.168.0.6:5060 I am trying to establish if this is a setting in 3cx that I need to change or something on the quintum device? Anyone have any ideas?