Hi All, We have working pbx with asterisk 1.4.23.1 System: Centos 5.2 We are using polycom phones for pbx. We are using sip channels for calls and all the users has set canreinvite=no and nat=yes. We have a issue with resuming the hold call by the polycom phone when the call traffic is high. We have put the incoming call on hold and when we try to resume it back, the call is hangup, and not able to connect the hold channel. Can anyone provide help!! Thanks, Max Alex Voip Developer -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20090310/be96cbc3/attachment.htm