Channel.c:1148 __ast_queue_frame: Exceptionally long voice queue length

I have this warning:

[Oct 17 07:40:17] WARNING[12488][C-0000000b]: channel.c:1148 __ast_queue_frame: Exceptionally long voice queue length queuing to PJSIP/twilio0-0000000d

I’ve seen several threads relating to this but no solution. I’m using version 14.6.0. Any suggestions on how to debug this would be appreciated.

You would need to get a backtrace[1] to determine the state of the system and what is holding that channel up.


Thanks, can it be ignored? I notice that I would need to recompile asterisk to get the backtraces data. Is it likely causing a major issue somewhere?

It means that a channel is stuck and may not have media flowing on it. It’s likely causing a problem.