If You Are Unable To Connect Calls - ADTRAN Express L128T S User Manual

IF YOU ARE UNABLE TO CONNECT CALLS

See Table 4-1 for corrective actions if you cannot connect calls.
Condition
The PWR LED
remains on, but
calls cannot be
placed.
Local voice calls
can be
transmitted, 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.
61202070L3-20
Table 4-1.
Corrective Action
Most likely a problem exists in the software setup
(translation) at the CO switch, or the network setup in
the Express L128T S/T.
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 example, 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 L128T S/T.
Check with the local service provider to ensure that the
line supports two data calls. The Express L128T S/T
status log buffer shows the sequence of events that
occurred. You need to know which piece of equipment
first caused the Multilink PPP process to terminate. The
status logs from both ends may be necessary to
determine this.
Express L128T S/T User Manual
Chapter 4. Troubleshooting
Troubleshooting Calls
4-7