Problem with ISDN BRI

[hbhupesh]

Hi, I am facing problem with ISDN which description is as follows;

Customer has SIte A (Central) & Site B (Remote).

When Site B calls (which is a requirement & a recommended procedure, remote making call to Central when user require) Site A, Site B router is not able to connect (note that BRI interface is showing UP & gets disconnected after 24 Sec. This happens for all calls from site B to A.

But, if call is initaited from Site B to Site A, there is no problem and network is reachable.

Hardware is 2600 (Central) & 1603R (Remote).

Let me know if anyone has faced similar problem. Thanks in advance.

Bhupesh

[o.hassairi]

make debug ppp authentication to see if it's a problem of password.

use show dialer to control the remaining time before disconnecting

[eric.cote]

In addition to authentication, also look at the speed which your remote router is trying to connect. If the call is not able to connect at 64k, I have seen instances where calls drop after a 30 second period. Try forcing the call to connect at 56k.