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SIP problems on Cisco ASA 5505

I’ve got a client with a new Samsung phone system that is configured to use their Cisco ASA5505 as a gateway to the SIP servers via their 50MBs leased line.

Inbound calls are received successfully, but outbound calls will stop working approx two minutes after the last inbound was received. There is only one static route configured to point 0.0.0.0 to the IP of the ISP’s router. SIP inspection is disabled. 

6|Dec 23 2015|11:13:43|302016|SIPSERVERPUBLICIP|5060|192.168.1.1|5060|Teardown UDP connection 2748005 for outside:SIPSERVERPUBLICIP/5060 to VOIP:192.168.1.1/5060 duration 0:00:00 bytes 895
6|Dec 23 2015|11:13:43|302016|SIPSERVERPUBLICIP|5060|192.168.1.1|5060|Teardown UDP connection 2748005 for outside:SIPSERVERPUBLICIP/5060 to VOIP:192.168.1.1/5060 duration 0:00:00 bytes 895
6|Dec 23 2015|11:13:43|110003|192.168.1.1|5060|SIPSERVERPUBLICIP|5060|Routing failed to locate next hop for UDP from VOIP:192.168.1.1/5060 to outside:SIPSERVERPUBLICIP/5060
6|Dec 23 2015|11:13:43|110003|192.168.1.1|5060|SIPSERVERPUBLICIP|5060|Routing failed to locate next hop for UDP from VOIP:192.168.1.1/5060 to outside:SIPSERVERPUBLICIP/5060
6|Dec 23 2015|11:13:43|302015|192.168.1.1|5060|SIPSERVERPUBLICIP|5060|Built outbound UDP connection 2748005 for outside:SIPSERVERPUBLICIP/5060 (SIPSERVERPUBLICIP/5060) to VOIP:192.168.1.1/5060 (192.168.1.1/5060)
6|Dec 23 2015|11:13:43|302015|192.168.1.1|5060|SIPSERVERPUBLICIP|5060|Built outbound UDP connection 2748005 for outside:SIPSERVERPUBLICIP/5060 (SIPSERVERPUBLICIP/5060) to

Anyone got any ideas? Thanks

1 REPLY
VIP Purple

The default UDP timeout is

The default UDP timeout is about 2 minutes.  Try something like the below to make this 1 hour.

timeout conn 1:00:00 half-closed 0:10:00 udp 1:00:00 icmp 0:00:30

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