I have seen a couple of posts related to this, but no workaround. Setup; Asterisk 1.2.13 with Polycom IP501 phones Caller is sent to the queue with the "t" option Agent is logged in via AgentCallbackLogin on an extension that is in a context that includes exclusively agent extensions. Agent is set up with ackcall=yes (# to answer) Call comes in, agent takes the call, attempts to transfer to another extension using a SIP transfer on the Polycom phone. Call drops when completing the transfer. The caller goes on hold as they should, the second call is dialed and answers successfully, but the completion of the transfer fails and the call is dropped. There is a "internal server error 500" logged on the console from the phone of the agent the originally answered the call. This used to work in earlier versions, quit working some time around 1.2.10 I think. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20061130/b13be7f6/attachment.htm