Upon investigating a call quality complaint with a conference room, I discovered this error repeated several times in the log. Looking at the source, frametype 5 is "An empty, useless frame". Does this indicate an actual problem? app_meetme.c: Got unrecognized frame on channel Local/123@from-internal-82c8,2, f->frametype=5,f->subclass=0 All calls in the conference room were via PRI (no voip/sip). The quality complaint was a delay when some parties were speaking, causing multiple people to talk at the same time. I believe this may not have had anything to do with Asterisk (i.e. inbound voip to pstn call), unless frames were being dropped. Chris