If You Are Unable To Connect Calls; Table 4-A; Troubleshooting Calls - ADTRAN Express XL 1200070L1 User Manual

IF YOU ARE UNABLE TO CONNECT CALLS

See Table 4-A for corrective actions if you cannot connect calls.
Condition
The Loop LED remains on, but
calls cannot be placed.
Local voice calls can be trans-
mitted, but data calls to the
same exchange cannot.
Local data calls go through,
but long distance data calls
do not.
Single B-channel calls can be
made, but two B-channel calls
cannot.
61200.070L1-1
Corrective Action
Most likely a problem exists in the software setup (translation) at the
CO switch, or the network setup in the Express XL.
The line is probably not set up to support data calls.
Ensure the far end is working. If not already doing so, place the call
explicitly specifying the prefix of the long distance service (for exam-
ple, 10288 for AT&T). If this does not work, then most likely the
problem is that the long distance service provider is not providing
long distance access.
There is most likely a problem in the software setup (translation) at the
CO switch, or the network setup in the Express XL.
If the line has two phone numbers, make sure the second SPID and
LDN are entered correctly in SPID2 and LDN2 in the Express XL.
Check with the local service provider to ensure that the line supports
two data calls. The Express XL status log buffer shows what sequence
of events occurred. What you need to know is which piece of equip-
ment first caused the Multilink PPP process to terminate. The status
logs from both ends may be necessary to determine this.
Express XL/XLT User Manual
Chapter 4: Troubleshooting

Table 4-A

Troubleshooting Calls

113