Hi, First time posting, so, hi all! :) The question I'm having is whether it's possible in the tx_request callback set in pjsip_module struct to determine on application level from the pjsip_tx_data passed to this callback if the request being transmitted is a retransmission? I'm using the pjsua abstraction layer, jfyi. The function pjsip_rdata_get_tsx() provides a way to get the transaction for received data, and having the transaction structure, it could be possible to inspect retransmit_count. I'm looking for a similar approach based on pjsip_tx_data instead of pjsip_rx_data. Is this possible somehow? Alternatively I'm thinking of patching pjsip/src/pjsip/sip_transaction.c function tsx_retransmit() for setting a custom callback in case of retransmission of a request. Any ideas whether it's possible to get the transaction using pjsip_tx_data and checking retransmit_count there (is this the right approach in general anyways?) or if patching pjsip to hook up a custom callback is more feasible? Thanks, Andreas
