Hi, I’m running asterisk 11 on OpenWRT based router.
I have a problem with establishing confbrigde() conference rooms, I get the
-- Executing [201@uzytkownicy:1] ConfBridge("SIP/test-00000000", "1") in new stack
> 0x9b7f80 -- Probation passed - setting RTP source address to 10.10.10.2:8000
[Oct 22 10:25:04] ERROR[4996][C-00000000]: app_confbridge.c:1187 join_conference_bridge: Conference '1' mixing bridge could not be created.
== Spawn extension (uzytkownicy, 201, 1) exited non-zero on 'SIP/test-00000000'
I did try to find an answer and I got into conclusion that I might miss some of required modules. I have app_confbridge.so module loaded as well as mixing ones.
Connected to Asterisk 11.5.1 currently running on OpenWrt (pid = 4977)
OpenWrt*CLI> module show
Module Description Use Count
app_confbridge.so Conference Bridge Application
bridge_builtin_features.so Built in bridging features 1
bridge_multiplexed.so Multiplexed two channel bridging module 0
bridge_simple.so Simple two channel bridging module 0
bridge_softmix.so Multi-party software based channel mixin 0
I can’t figure out what other modules might be needed. Any ideas?
Thanks, Andrzej
Edit:
It’s also required to install asterisk11-res-timing-pthread*.ipk and asterisk11-res-timing-timerfd*.ipk packages. From this moment on, confbridge connections are being established 
I forgot to mention that bridge*.so files are mine compilants and are not delivered with OpenWRT.