[SR-Users] [mohqueue] MOH service / A case with MOH queue

Hello! I am exploring mohqueue module and have few questions: - Could it be used to provide MOH service for SIP endpoints? I am aware that its main functionality is to queue calls (along playing a MOH for queued calls) and provides a mechanism to retrieve calls (FIFO), but I had the impression, reading several emails in this group, that it can be used in a way to provide MOH whenever a call is put on-hold -- I tried to use it with the re-INVITE received when a call is put on-hold, but got a log message stating that it works with initial INVITEs only (something like that) - On a test setup (Kamailio 4.2.3 / 2.0.0), I was able to reach the queue / listen to the MOH but encountered a strange case where the call gets automatically removed from the queue after 4-5 seconds (can be seen removed from kamailio.mohqcalls as well) Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): mohq_process: Processing INVITE, queue (demo) Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): create_call: Added call (<sip:6010@10.110.3.57to queue (demo) Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): first_invite_msg: Making offer for RTP link for call (<sip:6010@10.110.3.57 Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): first_invite_msg: Sent RINGING for call (<sip:6010@10.110.3.57 Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): send_rtp_answer: Answering RTP link for call (<sip:6010@10.110.3.57 Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): start_stream: Starting RTP link for call (<sip:6010@10.110.3.57 Jun 12 22:58:30 - DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): send_rtp_answer: Responded to INVITE with RTP for call (< sip:6010@10.110.3.57Jun 12 22:58:35 ERROR: mohqueue [mohq_funcs.c:1243]: invite_cb(): invite_cb: INVITE failed for call (<sip:6010@10.110.3.57 Jun 12 22:58:35 DEBUG: mohqueue [mohq_funcs.c:2369]: mohq_debug(): delete_call: Deleting call (<sip:6010@10.110.3.57from queue (demo) -- route[MOH] is called first at the beginning of request_route() route[MOH] { if (has_totag()) return; if (mohq_process ()) { xlog ("mohqueue: mohq_process"); exit; } } -- Looking at the SIP trace, all seems ok, except receiving a 404 response after BYE (that's me hanging up after few seconds from getting the above error message) Your comments and hints are appreciated! Thank you Issam