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T303, capability exchange timeout error

aliao
Level 1
Level 1

‎10-31-2001 10:19 PM - edited ‎03-12-2019 01:07 PM

Hi,

We're building a VoIP network using CCM; however, after some deployment, we constantly unable to complete calls due to T303 or capability exchange timeout. Does anyone have any idea on why this is happening and how we can fix this?

Thanks!

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dgoodwin
Cisco Employee
Cisco Employee

‎11-01-2001 07:17 AM

Increase the MediaExchangeTimeout and MediaExchangeInterfaceCapsTimeout service parameters in CCMAdmin.

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aliao
Level 1
Level 1
In response to dgoodwin

‎11-01-2001 01:04 PM

I will try that also. Also a side note, does changing service paramenters requires restarting CCM?

I am acutally receiving this error message on the originating H323 gateway. The terminating gateway was sent a "release complete" message from CCM.

It seems CCM is having problem passing on the capabilities to originating H323 gateway. Any ideas?

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