Hello all, I'm trying to understand the exact impact of the PJSIP timeout configuration options because I need to match the high latency of a satellite service. I'm getting lots of 408 timeouts at the moment, particularly for REGISTER messages: PJSIP_T1_TIMEOUT PJSIP_T2_TIMEOUT PJSIP_T4_TIMEOUT PJSIP_TD_TIMEOUT The problem is I cannot find any documentation explaining these timers, and when I change the default values the PJSIP timer behaviour is not matching the time periods I enter. Can anyone point me to a source of documentation or correct my understanding below? PJSIP_T1_TIMEOUT = Retry frequency within transaction timeout; e.g. PJSIP will retransmit the message at the defined interval PJSIP_T2_TIMEOUT = What is this? PJSIP_T4_TIMEOUT = Transaction timeout period for non-INVITE requests PJSIP_TD_TIMEOUT = Transaction timeout period for INVITE requests Also when I change these values, the retransmits/timeouts do not match the time periods I enter. Why is that? Cheers. Dave.
