Voice traffic not working through ASA 5510

Unanswered Question
Dec 2nd, 2007
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One of my customers is experiencing a problem with voice calls being established through their Cisco ASA 5510 (ver 8.0.3)


I haven't been able to get exact details of the phones they are using but I believe the gateway server is running SWYX.


It appears as though calls are established (the phone rings) but you cannot hear the people talking.


The SWYX (gateway server is at their Head Office. Calls are made from remote sites and the gateway routes calls as required.


is there anything I needd to do on the firewall to permit this type of traffic?

I have attached some of the console output below as well as the inspection config. Any input would be much appreciated!!


policy-map global_policy

class inspection_default

inspect dns migrated_dns_map_1

inspect ftp

inspect h323 h225

inspect h323 ras

inspect rsh

inspect rtsp

inspect esmtp

inspect sqlnet

inspect skinny

inspect sunrpc

inspect xdmcp

inspect sip

inspect netbios

inspect tftp

inspect icmp

inspect pptp

inspect mgcp

!

service-policy global_policy global

prompt hostname context




Pre-allocate SIP SIGNALLING UDP secondary channel for inside:SWYXSRV/5060 to telstrampn:10.0.10.31 from REGISTER message

Dec 03 2007 11:03:44: %ASA-6-302016: Teardown UDP connection 719768 for telstrampn:10.0.10.31/0 to inside:SWYXSRV/5060 duration 0:00:00 bytes 0

Dec 03 2007 11:04:04: %ASA-6-302003: Built H245 connection for faddr SWYXSRV laddr 10.0.10.33/1503

Dec 03 2007 11:04:04: %ASA-6-302003: Built H245 connection for faddr SWYXSRV laddr 10.0.10.33/1503

Dec 03 2007 11:04:04: %ASA-6-302004: Pre-allocate H323 UDP backconnection for faddr 10.0.10.33/5012 to laddr 127.0.0.1

Dec 03 2007 11:04:04: %ASA-6-302003: Built H245 connection for faddr SWYXSRV laddr 10.0.10.33/1503

Dec 03 2007 11:04:04: %ASA-6-302003: Built H245 connection for faddr SWYXSRV laddr 10.0.10.33/1503

Dec 03 2007 11:04:04: %ASA-6-302013: Built outbound TCP connection 719831 for telstrampn:10.0.10.33/1503 (10.0.10.33/1503) to inside:SWYXSRV/4791 (SWYXSRV/4791)

Dec 03 2007 11:04:04: %ASA-6-302014: Teardown TCP connection 718459 for telstrampn:10.0.10.33/1720 to inside:SWYXSRV/4298 duration 0:21:44 bytes 479 TCP FINs

Dec 03 2007 11:04:05: %ASA-6-106015: Deny TCP (no connection) from 10.0.10.33/1502 to SWYXSRV/4299 flags FIN PSH ACK on interface telstrampn

Deny TCP (no connection) from 10.0.10.33/1502 to SWYXSRV/4299

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kbeers Mon, 12/03/2007 - 14:25
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I had a similar problem when trying to make calls through a VPN tunnel that terminated on my ASA5520. The call established but no voice traffic went through. The fix was removing the inspect skinny from the policy-map global_policy. Hope that helps.

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