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ISDN call failure

singh-ashok
Level 1
Level 1

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

Ayodeji Okanlawon
VIP Alumni
VIP Alumni

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

View solution in original post

2 Replies 2

Ayodeji Okanlawon
VIP Alumni
VIP Alumni

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

Thanks again Deji. You are great!!

Ashok.

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