[asterisk-users] FW: IPcortex: ERROR[23444] chan_zap.c: You cannot use cause 17 number when in state 6

Update: I can reproduce the error by putting the reception phone (call queue 0) in Do Not Disturb mode, then call in from outside using a mobile, then pick up the call from the 2nd phone in the queue. It will cause the error only if I hang up _before_ the mobile hangs up. The error doesn't seem

Re: [asterisk-users] FW: IPcortex: ERROR[23444] chan_zap.c: You cannot use cause 17 number when in state 6

Xavier, DoNotDisturb generates a Busy indication. Insert that into my earlier response, and you have an explanation of why the call tries to go from RING to BUSY, and confirms my theory. No you cannot replace the Zaptel card driver on its own (and the problem was bigger than that anyway), as