The show frame-relay lmi command is invaluable
for determining the status of the link between the router and the Frame-Relay
switch.
Examine the
output from item A to determine the locally configured LMI type.
An
incrementing "Num Status Enq. Sent" and "Received"
indicates that successful router to Frame-Relay switch communications are
occurring.

If
the router is sending status messages but not receiving them, then check the
physical layer between the router and the Frame Relay switch. Ensure that the
LMI encapsulation used by the router and the Frame Relay switch are the same.