I had seen this symptom a few times randomly, and just got a couple of reports from users where a call to an outside number was going immediately to 'On Hold' when the person answered.

Is there anything in the SIP/RTP stream that could be expected to trigger that sort of behavior? I've seen it from a polycom, and I believe one of the user reports today was with a yealink. User report was with a recently upgraded 1.6 -> 1.8 deployment. I believe the previous times I've seen it would have been on git builds of 1.8, but not certain.

-- Nathan
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Nathan Neulinger                       nneul@mst.edu
Missouri S&T Information Technology    (573) 612-1412
System Administrator - Architect