Cisco Support Community
cancel
Showing results for 
Search instead for 
Did you mean: 
Announcements

Welcome to Cisco Support Community. We would love to have your feedback.

For an introduction to the new site, click here. And see here for current known issues.

New Member

ISDN call failure

What are the ways to troubleshoot if inbound calls fail on the PRI / BRI interface? what possible debugs can help? ( sh isdn status)

1 ACCEPTED SOLUTION

Accepted Solutions
VIP Super Bronze

Re: ISDN call failure

Every engineer's dream debug is

debug isdn q931.

Two keys things you need to observe are

1. Cause code

2. Direction of disconnection.

With the cause codes you will be able to know the reason why the call was disconnected.

The directin of the disconnection will tell you which party initiated disconnect, this will help you know if the problem is coming from your gateway or the Telco.

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
2 REPLIES
VIP Super Bronze

Re: ISDN call failure

Every engineer's dream debug is

debug isdn q931.

Two keys things you need to observe are

1. Cause code

2. Direction of disconnection.

With the cause codes you will be able to know the reason why the call was disconnected.

The directin of the disconnection will tell you which party initiated disconnect, this will help you know if the problem is coming from your gateway or the Telco.

Please rate all useful posts "The essence of christianity is not the enthronement but the obliteration of self --William Barclay"
New Member

Re: ISDN call failure

Thanks again Deji. You are great!!

Ashok.

131
Views
0
Helpful
2
Replies
CreatePlease login to create content