ADTRAN L128 - Manual (Page 128)

Chapter 4: Troubleshooting
61202.070L1-1 Express L128/L128T User Manual 111
6. If the Loop Status in the Express L128/L128T Status menu continuously
reads Getting TEI #2, the Express L128/L128T has completely initialized
the first phone number but is unable to establish logical layer 2 for the sec-
ond phone number. The problem is in one or both of the following places:
• The Express L128/L128T software setup
• The telephone service provider’s software setup
To isolate the problem, perform the following procedure:
A. Ensure the line is multipoint with two phone numbers.
B. Ensure that the Express L128/L128T is set up with the
correct SPID and LDN. For example:
SPID1 = 20572270460101
SPID2 = 20572270470101
LDN 1 = 7227046
LDN 2 = 7227047
C. Try swapping SPID1 with SPID2 and LDN1 with LDN2.
Determine if the problem is the second phone number or
the quantity of phone numbers.
D. If possible, try another piece of functioning ISDN equip-
ment with a U-interface on the line.
E. With the Express L128/L128T connected to the line and
powered up, talk to your service provider’s repair group
and tell them you have an ISDN basic rate line that ap-
pears physically okay but is unable to register its SPID(s).
Ask them to check the line translation, ensure the line
supports dynamic TEI allocation, and verify the SPIDs.
Tell them that you have an NT1 and terminal adapter de-
vice connected to the line.
7. If the Loop Status in the Express L128/L128T Status Menu continuously reads
Register SPID #2
, the Express L128/L128T has completely initialized the first
phone number but is unable to establish logical layer 3 for the second phone
number. The problem is in one or both of the following places:
• The Express L128/L128T software setup
• The telephone service provider’s software setup