User manual
DEFINITY ECS Release 8.2 Maintenance for R8.2csi 
555-233-119  Issue 1
April 2000
Maintenance Objects 
3-215ATM-SGRP (ATM Signaling Group) 
3
System Technician-Demanded Tests: Descriptions 
and Error Codes
Always investigate tests in the order presented in the table below when 
inspecting errors in the system. By clearing error codes associated with the 
Primary Signaling Link Hardware Check, for example, you may also clear errors 
generated from other tests in the testing sequence.
3906 Protocol detail; may offer a 
clue if customer is having 
ISDN calls denied with an 
unexpected intercept tone.
1. If customer is complaining of unexpected intercept 
tones when accessing ISDN trunks or PRI endpoints 
and no other cause can be found, escalate to the 
problem and provide the next tier with this Error Log 
information.
3909 A request to use a network 
service has been made, 
but the network has 
rejected the request 
because the requested 
service is not implemented.
1. Follow the recommendations listed above for Error 
Type 3890.
3928 A call was denied because 
of a basic incompatibility 
between the type of call 
and either the facilities 
selected by the routing 
pattern or the called user 
itself.
This error might be helpful as a clue if the customer 
complains of receiving unexpected intercept tone after 
accessing ISDN trunks or PRI endpoints.
1. Determine the trunk group from the circuit pack and 
port number (in the aux data field)
2. check the BCC fields of the pertinent routing 
patterns. 
3. Also, investigate whether or not the calling and called 
endpoints are compatible (for example, some ISDN 
switches may not allow a voice station to call a data 
extension).
Table 3-88. Descriptions and repair recommendations (Error Types 3840-3928) — Continued
Error 
Code Description Recommendation
Continued on next page










