Sutare, Thank you for the reply. We are currently not NAT'ing any traffic across the VPN, and the problem only exists on that single ATA 191 device. The link you sent me is intriguing, but I'm very hesitant of going down the road of changing the Outgoing Transport Type from TCP to UDP for our entire CUCM in an effort to correct a problem with a single ATA. It seems like there would be significant risk in terms of call quality if changing from stateful TCP traffic to straight UDP (throw packets at the wall and see what sticks), no? Any other advice you could offer would be most appreciated. Thx, Ap.
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