AT&T SB67060 T1 Installation Guide download pdf (Page 151)

Troubleshooting 150

Synapse Installation 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.

 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 Cat.-5 wiring.

 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.

 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 currently 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 the highest numbered PSTN Gateway, as indicated

on the Gateway display.

The PSTN Gateway might not have recognized a new outside telephone line, so line calibration — which allows the PSTN

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.

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AT&T SB67060 T1 Installation Guide Page 151