IP extension dropping calls

[buwrito]

I sent a 5610sw phone out to one of our offices on the east coast. They have a hardware VPN device (Cisco ASA 5505) that connects them to our corporate network. The phone registers with the system just fine and is able to make/receive calls.

At random times the phone will drop calls. Sometimes when the call drops the call timer on the phone will continue ticking and sometimes the phone will do a full reboot.

I have used the monitoring tool to look at things from our end and it appears the phone is loosing its registration with the ip office system.

I have checked the network connection between here and the east coast office, we are not dropping packets BUT the connection response time is a little slow (80 - 120ms)

My question is, what type of latency can the system handle with these phones? If i have them use a soft phone the connection works just fine.

My system: IP Office 412 (5.0 release 15)

Thanks for your help!

 

[amriddle01]

In the ASA box ensure there are no entries in the following:

Configuration > Firewall > Objects > Inspect Maps > H.323
Configuration > Firewall > Objects > Class Maps > H.323


ACSS Small and Medium Enterprise (SME) Communications

"What the Crocodile Hat....was that?

 

[buwrito]

no entries under either one.

 

[amriddle01]

You will also need to disable the global timeouts of H323 and TCP / UDP, set them to 0:00 then uncheck them. If you leave them unchecked without zeroing out the time it will leave them on their default timers

ACSS Small and Medium Enterprise (SME) Communications

"What the Crocodile Hat....was that?

 

[buwrito]

That did it, thanks!

 

[hairlessupportmonkey]

at least someone has been listening to my ASA advice!