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‎07-10-2012 09:26 AM

HP Recommended

Hi,

 

A remote user using PVX who dials in onto our HDX7000 unit can only establish a session for x amount of time and the session gets cut off. The amount of time varies between 15 to 40 minutes so there is no pattern.

 

I have checked various settings like the maximum time per call which is set to 90minutes and QoS is enabled.

 

I have also created firewall rules on the remote router to open relevant ports but still no change.

 

Can someone advise if they are experiencing the same thing and what the issue may be and how to resolve it.

 

Thanks 

5 REPLIES 5

‎07-10-2012 10:09 AM

HP Recommended

Look for a port timeout on TCP1720 and anything to do with H.323 (subset H.225).  Though these types of timeouts are usually excatly x mins or there about.  Search the forum for timeout.  There are much more succinct explanations than this & it may be something entirely different.  Oh! what about a buffer overflow somewhere?  Does lower call speed increase the time to fail?

Pete

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‎07-11-2012 03:09 AM

HP Recommended

The TCP session timeout is set to 3600 seconds (1 hour) this is a catch-all configuration and isn't port specific.

 

The firewall rules I have set are including QoS priority  "maxiumum reliabilty"

 

There are no session limits enabled nor does the router have any settings for buffer overflow.

 

The call speed on the PVX itself is set to 128k which is already low.

 

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‎07-11-2012 03:49 AM

HP Recommended

Sounds like you have all your "network ducks-in-a-row".  I'm assuming the above applies to to both ends of the VSX7k-PVX link.

You are welcome to try our 24/7 VSX which is out on "the public" to isolate issues at either end.  89.105.107.135.  The quality is not great (esp. @ 128k) but it'll prove connectivity.

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‎07-12-2012 08:21 AM

HP Recommended

It appears that the remote end is unable to view the video feed or hear anything from the ip address you specified; the call answers and just gives a black screen with the clock and the caption on the top.

 

But I'm able to view it on from here.

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‎07-12-2012 09:02 AM

HP Recommended

Your remote end has issues with "media" ports.  Probably UDP 3230-3237.  Sounds like you are all good @ the PVX end. Pete

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