AT&T SB67030 Administrator's Manual page 203

Symptom
You hear echoes, distorted
speech, or static.
My PC is slower now that I
have connected it to the LAN
through the Deskset.
Troubleshooting
Synapse Administrator's Guide
Probable Cause
At least one of the PSTN
lines has DSL, which is not
properly filtered.
There is a non–Synapse
telephone device plugged
into one of the telephone
wall jacks.
The PSTN Gateway did not
recognize a new PSTN line
being plugged in, so line
calibration — which allows
the Gateway to adjust its
performance depending on
the phone lines'
characteristics — did not
occur.
A computer connected
through the Deskset will be
limited to 100 Mbits/s.
Corrective Action
Make sure you have a DSL filter plugged in between each
DSL line and the telephone wall jack.
You may need a higher quality DSL filter than you are
using. You can also try plugging in multiple DSL filters in
sequence to decrease DSL interference.
Move the DSL line to the lowest priority line, which is Line
4 on any PSTN Gateway.
Remove any parallel systems from the outside phone line
(connected through a splitter, for example) such as an
analog phone, fax machine, or alarm system.
Confirm an Ethernet cable is plugged into the Deskset
port marked .
Ensure that the line LED is solid red before plugging in the
PSTN line.
When unplugging the line, wait two full seconds for the
LED to turn red before plugging it back in.
Use separate Ethernet connections for the Deskset and
the computer so that the computer can take advantage of
the network's greater bandwidth.
203
General Troubleshooting