Jason, would it be possible to get a packet capture from the WAN side of the 7100? With audio issues, we generally end up needing to see the RTP in addition to the SIP messaging to confirm that audio is being sent to the right place and on the right ports. Thanks
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Thanks for the reply - but I actually opened a ticket and got things figured out.
Turns out, the VoIP provider we use was sending the re-invites created by hold/transfer etc to the wrong IP. Added some grammar commands pointing to the required domain/IP - Everything works!
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I'm having a very similar issue where our operator can hear a caller but sometimes when the caller is parked, they cannot be heard after the park pickup. It seems that most of the problematic calls are incoming from a cell phone.
While the OP's issue was caused by the provider, our hold and parking functions are being performed only by the Adtran 7100 and not the VoIP provider. Should I capture a debug for this problem?