Hi

Have an AS5400 with modem cards and E1 ports, configured for dial backup with callback. Sometimes the callback doesn't complete, and in the debug output we receive the message "no interface available". Soon after in the debug, there is an incoming call in the same interface. It seems that the AS5400, after disconnecting the call to do the callback, received another call, and placed it in the same modem that would be used for callback. This happens even if there are plenty of idle mdems and E1 channels in te equipment. How can we avoid that?

Following is the debug output:

Jul 12 18:30:16.067: As2/05 DDR: PPP callback: Callback server starting to u01005460 0158232234500

Jul 12 18:30:17.067: As2/05 DDR: disconnecting call

Jul 12 18:30:28.231: As2/05 DDR: Dialer statechange to up

Jul 12 18:30:28.235: As2/05 DDR: Dialer received incoming call from <unknown>

Jul 12 18:30:31.067: As2/05 DDR: beginning callback to u01005460 0158232234500

Jul 12 18:31:05.387: As2/05 DDR: re-enable timeout

Jul 12 18:31:05.387: As2/05 DDR: beginning callback to u01005460 0158232234500

Jul 12 18:31:05.387: As2/05 DDR: No interface available for callback to u01005460 0158232234500

Jul 12 18:31:09.235: As2/05 DDR: Dialer statechange to up

Jul 12 18:31:09.235: As2/05 DDR: Dialer received incoming call from <unknown>

Jul 12 18:31:16.067: As2/05: Dialer session up timeout, 277E0410