Common Troubleshooting Procedures
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AT&T SB67010 Gateway, SB67030 Deskset System Administrator’s Guide
Resolving General Audio Issues
Check the following if you hear static, sudden silences, gaps in speech, echoes, distorted speech, or garbled speech.
To resolve general audio issues:
You may be experiencing network problems.
a. Your LAN administrator should ensure the following minimum guidelines are met:
A switched network topology, which requires attaching network components to switches rather than hubs, is
recommended. The network should use standard 10/100 Ethernet switches that carry traffic at a nominal rate
of 100 Mbit/s.
The office network infrastructure should use Cat5 wiring.
b. Do not connect a network server PC to the PC port on the Deskset.
If you have Digital Subscriber Line (DSL) service, you may be experiencing telephone line problems.
a. Make sure you have a DSL filter plugged in between each DSL line and the wall jack.
b. You may need a higher quality DSL filter than you are using. You can also try plugging in the multiple DSL filters
in sequence to decrease the DSL interference.
c. Move the DSL line to the lowest priority line, which is Line 4 on the highest numbered Gateway, as indicated on
the Gateway display.
The Gateway might not have recognized a new PSTN line, so line calibration, which allows the Gateway to adjust its
performance depending on the phone lines’ characteristics, did not occur. After unplugging the telephone line, wait
two full seconds for the LED to turn red before plugging the telephone line back into the Gateway.
