[cisco-voip] IOS 15 and voice service voip with h225 timeout tcp establish

[Mathew Miller]

Dont' know why it is gone from a global level but this step is necessary because by default, the H.225 timer that controls redirection to a less preferred dial peer on a "no-response" failure is considerably longer than the 10 second timer of the Q.931 call proceeding timer. When a call comes in to a H.323 gateway via an ISDN trunk and gets forwarded to an inoperative Cisco CallManager, the router will wait for around 40 seconds before attempting to use a dial peer with a lower preference, or clearing the call. By the time this occurs, the ISDN Q.931 signaling on the H.323 gateway has already sent an ISDN Q.931 CALL DISCONNECT to the ISDN switch. The router will provide an ISDN clearing code of 0x8066 - 'recovery on timer expiry' as you saw.


On Jun 24, 2010, at 11:05 PM, Jason Aarons (US) wrote:

> Why is h225 timeout tcp establish gone from voice service voip/h323 and only left in voice class h323 ? Like I really want to put it on each dial peer?!?!? What is h225 timeout setup ?
>  
>  
> Actual working config;
> voice service voip
> h323
>   h225 timeout setup 2
>   h225 display-ie ccm-compatible
> !
> voice class h323 1
>   h225 timeout tcp establish 3
> 
> 
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