600
sip Busy Everywhere
The callee's end system was contacted successfully but the callee is busy and does not wish to take the call at this time. Unlike 486, this is a global failure indicating the user is busy at all locations.
The callee's end system was contacted successfully but the callee is busy and does not wish to take the call at this time. Unlike 486, this is a global failure indicating the user is busy at all locations.