I have a sipXecs system running 4.0.2 ISO install running fine using Voip.MS trunks. I'm trying to test trunks from Broadvox.com, so I have reconfigured the sipxbridge to the Broadvox requirements, IP address, FQDN, and password. I can make incoming and outgoing calls with Polycom 450 phones running 3.1.3c split, and Bootrom 4.1.3. I can also make incoming and outgoing calls on an Advatel Phone Easy console. Call transfers with the Advatel to both internal devices, as well as external PSTN devices on this ITSP's trunks work fine.
However, on the Polycom Phones, transfers to external PSTN devices does not work. The transferring phones get hung in a weird state, where the call can't be retrieved. The station being transferred drops its music on hold and go to silence until a bye is received from the ITSP on the PSTN trunk, where the music on hold returns to the station being transferred. ON incoming calls - PSTN call to Auto Attendant, transfer to extension 1, audio out to PSTN, no Audio in to internal extension. Call drops after 5 seconds. On outgoing calls, full audio in both directions. Just to confirm it's not an issue with the Polycom 450 phones, I've installed a Polycom 501, and it has the exact same test results. I do have a Merged.xml file of the transactions. It can be download from gotten here. http://misiusystems.com/index.php?option=com_content <http://misiusystems.com/index.php?option=com_content&view=article&id=59&Ite mid=68> &view=article&id=59&Itemid=68 Any suggestions or direction would be appreciated.
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