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VG200 H323 Gateway dropping calls

I have a VG200 working as an H323 gateway for a remote office.  The gateway has 4 POTS lines plugged into some FXO cards.  This office is connected via a VPN tunnel on an ASA 5505.  Previously, we had issues with outside calls dropping right at 5 minutes.  This was because of the "inspect h323 h225" command in the policy-map.  When I removed that the problem went away.

Fast forward a couple years, and all of the calls going through the gateway are dropping.  It is at random intervals.  The call may last 4:45 or it may drop at 20 seconds.  It is completely random.

I captured this debug information when one of the calls dropped:

  Q931 Message IE Decodes
Protocol Discriminator : 0x08
CRV Length             : 2
CRV Value              : 0x805A
Message Type           : 0x5A: RELEASE_COMP
 Cause: Length Of IE=2
 Data 8090
 User-User: Length Of IE=33
 Data 052580060008914A00020111008088A06F5E20913D5A0072010A01701106800100
Hex representation of the RELEASE COMPLETE TPKT to send.: 030000310802805A5A080280907E0021052580060008914A00020111008088A06F5E20913D5A0072010A01701106800100
h225TerminateRequest: Q.931 RELEASE COMPLETE sent from socket [1]. Call state changed to [Null].h323chan_chn_process_read_socket: fd (3) of type ACCEPTED has data

Hex representation of the received TPKT030000090400000000
*Jun 25 09:34:25.106: h323chan_chn_process_read_socket: fd (3) of type ACCEPTED has data

Hex representation of the received TPKT030000064A40
*Jun 25 09:34:25.158: h323chan_chn_process_read_socket: fd (3) of type ACCEPTED has data

*Jun 25 09:34:25.214:       h323chan_recvdata:Connection lost socket [3]
*Jun 25 09:34:25.214:       h323chan_close: TCP connection from socket [1] closed
*Jun 25 09:34:25.218:       h323chan_close: TCP connection from socket [3] closed
*Jun 25 09:34:25.222:       h323chan_close: TCP connection from socket [2] closedh323chan_chn_process_read_socket: fd (0) of type LISTENING has data
Changing to new event: ACCEPT
h323chan_chn_accept: 0

*Jun 25 09:34:42.302:       h323chan_gw_accept: TCP connection accepted from 10.1.1.20:33112 on socket [1]
*Jun 25 09:34:42.302: local(0x0) accepts TCP conn from 10.1.1.20(0xA010114) port 33112changing from LISTENING state to ACCEPTED state
h323chan_chn_process_read_socket: fd (1) of type ACCEPTED has data

Hex representation of the received TPKT030000EF0802005B0504038090A26C0C008134333536353635313535700D803931383031353633323832387E00C10520B0060008914A000501401F004200720061006E0064006F006E002000570065006C006300680020002D0020003200350031003400000000000000000000000000000000000000000000000022C0B50000120F436973636F43616C6C4D616E61676572003100010580C4B348965B5B0080D356D70C21913D5B0079010A01701100D50D800007000A01011406B8110080D356D70C21913D5B0079010A017011010001000100010010A00100140140B50000120D81E40020040001030003000103

 

I'm trying to figure out if this is a problem with the lines, or a problem with the gateway.  Does anyone have any ideas?

 

Thanks

 

Jake

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