[asterisk-users] SIP/IAX Interworking ip CANCEL behavior

[Andreas M.]

Hello,
i have two asterisk boxes connected to each other via iax trunk.

all is working fine, only if one extension cancles the call during ringing, the far end extension
still rings three times until call is also terminated (both extensions are connected via SIP)

this does not happen after successfull call setup, the sip "BYE" is processed correctly.

Any ideas, what i forgot to configure ?!

best regards,

Andreas M.