wfFrSwSigT303 1.3.6.1.4.1.18.3.5.9.6.12.1.21

Timer number: T303 default time-out: 4 s state of call: call present cause for start: outgoing setup normal stop: incoming connect/call-proceeding/ release-complete at the first expiry: retransmit setup, restart T303 at the second expiry: clear call