The problem may be at the remote location.

Perform the following:

1. Have the remote site operator verify that the remote equipment is powered on and ready, and that the remote configuration values are correct and compatible with the local configuration.

2. If the problem continues, determine if data is being transferred over the remote ISDN interface. This can be done by either using a communications trace (STRSST), or attaching a protocol analyzer to the line.
   • If a line trace reveals that no data is being transferred, then run hardware and diagnostic tests on the remote equipment.
   • If data is crossing the ISDN interface, analyze the failing protocol procedures to determine which configuration parameters to change. Consult your service representative for help with this analysis.

This ends the procedure.