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New Member

Problem with Long Distance ISDN


Does anyone here have an experience for Long Distance ISDN?

I have configure my AS5300 PRI as network side of ISDN.

But i see the Layer2 of this is not stable because T200 timer expiry.

In the cisco i din't find any command to change this parameter,

maybe somebody here can show me the way, how to solve the problem.




Re: Problem with Long Distance ISDN

Normally when you configure a trunk that connects to the PSTN the telco will configure their side as Network and you configure your side as User. If you really need to have your side configured as Network, I would call the Telco and ask for them to change their end to User.

New Member

Re: Problem with Long Distance ISDN

My Telco side is already configure as user. Layer1 is already active

Unfortunantely when i enter show isdn status

the Layer2 state of myISDN sometimes is TIMER_RECOVERY

When i debug this event i see S8_T200 EXPIRY.

So, i think my ISDN problem caused byte T200 value which is only 1 second.

Correct me if i'm wrong with this assumption.

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