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ISDN dial problem from Cisco Router 1751V to 2620-XM

Pls see below scenario

One Cisco 2620-XM router with IOS 12.2T & Cisco 1751V router with IOS 12.3T.

Now Cisco 2620 router is dialing BRI interface of Cisco 1751 Router & call is perfectly established & Data is processed in both way. But if dialer string is removed from 2620 router & dial happens through 1751. Call doesn't establish even after many trys it appears in ISDN history as called failed. Could you what's wrong here. Awaiting your reply

You can look the command below on both Cisco 2620 & Cisco 1751V routers.

Cisco 2620-XM

!

Interface BRI 1/1

ip address 172.17.1.1 255.255.255.252

encapsulation ppp

dialer string 0145234569

dialer idle-timeout 1500

dialer-group 1

!

Cisco 1751V

!

Interface BRI 0/0

ip address 172.17.1.2 255.255.255.252

encapsulation ppp

dialer string 01122965748

dialer idle-timeout 1500

dialer-group 1

!

2 REPLIES

Re: ISDN dial problem from Cisco Router 1751V to 2620-XM

Hi Pankaj

Can you post the whole config of both the routers with dialer info included ?

regds

Silver

Re: ISDN dial problem from Cisco Router 1751V to 2620-XM

you should use (debug isdn q931) to troubleshoot the problem

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