Contact US

Log In

Come Join Us!

Are you a
Computer / IT professional?
Join Tek-Tips Forums!
  • Talk With Other Members
  • Be Notified Of Responses
    To Your Posts
  • Keyword Search
  • One-Click Access To Your
    Favorite Forums
  • Automated Signatures
    On Your Posts
  • Best Of All, It's Free!

*Tek-Tips's functionality depends on members receiving e-mail. By joining you are opting in to receive e-mail.

Posting Guidelines

Promoting, selling, recruiting, coursework and thesis posting is forbidden.

Students Click Here

Cause=88, Incompatible destination

Cause=88, Incompatible destination

Cause=88, Incompatible destination

Hello Team.
i am facing an issue with ISDN BRI Trunk.
when receiving a call i see in the monitor the call ringing once and then disappears
caller continues to hear ring back tone.
the trace tool shows :
Line: type=Q931Line 2 Call: lid=2 id=10 in=1
Cause=88, Incompatible destination

any ides?
Could be the provider? or IPO?
on same system i have another 2 BRI lines that function OK.



RE: Cause=88, Incompatible destination

Disconnect the faulty lines from the system and see if all calls progress as normal..
Then disconnect the good lines and connect faulty lines to same port as the good ones

If the calls fail then it’s the provider.

You should be able to see the faulty lines using SSA.

Basically it’s a process of eliminating the faulty lines.

Red Flag This Post

Please let us know here why this post is inappropriate. Reasons such as off-topic, duplicates, flames, illegal, vulgar, or students posting their homework.

Red Flag Submitted

Thank you for helping keep Tek-Tips Forums free from inappropriate posts.
The Tek-Tips staff will check this out and take appropriate action.

Reply To This Thread

Posting in the Tek-Tips forums is a member-only feature.

Click Here to join Tek-Tips and talk with other members! Already a Member? Login

Close Box

Join Tek-Tips® Today!

Join your peers on the Internet's largest technical computer professional community.
It's easy to join and it's free.

Here's Why Members Love Tek-Tips Forums:

Register now while it's still free!

Already a member? Close this window and log in.

Join Us             Close