SoundStructure C12 with VoIP Card Disconnecting Calls

[Justplainjo]

Customer has an IP500v2 running 6.0 (8).
Installed a Polycom SoundStructure C12 with VoIP card that connects as a 3rd Party Endpoint to the system (license installed and working).

I was able to get everything working properly; however, on every call, anywhere from 15 seconds to 2 minutes in, the call disconnects.

In IPO, the call just shows as if the person hung up; but in the Polycom logs it shows that the call was dropped.

We already replaced the VoIP card and it did not resolve the issue.

Below is a snip from the polycom logs.

CTrans::InitRetrans for UA Server Non-INVITE OPTIONS state 'completed' Server 2 of 2 (0x405848a8)
004625.823|sip  |1|00|Server State finished OPTIONS (0xb092e0)
004625.823|sip  |1|00|TimeOut500ms NoCall 'Unknown' (0xaf9bf0) finished
004625.823|sip  |3|00|CCallNoCall::NewCallState 'Unknown'->'Idle' (0xaf9bf0)
004625.823|sip  |3|00|CCallNoCall::NewCallState 'Unknown'->'Idle' (0xaf9bf0)
004653.321|sip  |1|00|socket 131(0x405866a8) time expire
004653.321|sip  |3|00|CTcpSocket::~CTcpSocket socket 131 entry for 0x405866a8
004653.321|sip  |3|00|CTcpSocket::~CTcpSocket socket 131(0x405866a8) close
004653.324|sip  |1|00|socket recv error error=0
004653.324|sip  |1|00|ListenThread socket 131 thread exiting

Any help would be appreciated.

Jo Levi
ACSS