Nortel Networks 9150 User Manual

Page 384

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354

Remote Gateway 9150 Installation and Administration Guide

Troubleshooting

Standard 3.1

There are noticeable gaps or
poor quality when a voice call is
active on the IP network.

1

Check the Quality of Service (QoS)
configuration on the RLC. Adjust the
configuration, if required.
Lower the QoS threshold so that
transition occurs earlier.

2

Analyze the traffic patterns on your voice
and IP networks as described in the
Remote Gateway 9100 Series Network
Engineering Guidelines
(555-8421-230).
It is possible that your IP network
capacity cannot accommodate the
additional voice data, especially during
High Day Busy Hour (HDBH) periods.
Make adjustments to your network as
required.

Incoming calls are not being
received from the host PBX.

1

Ensure your telephone is not on call
forward.

2

Ensure the Remote Gateway 9150 unit
is not in offline mode by entering the
Online SPRE code at a digital telephone.

3

Ensure the Remote Gateway 9150 unit
is powered up. It cannot receive calls
from the host PBX if it is not powered up.

4

Ensure the RLC is correctly configured
with your Remote Gateway 9150 unit’s
IP address, telephone number, and
security ID (if they are used).

5

Ensure the ISDN BRI line is working, if it
is being used to route host-controlled
calls. Ask your service provider to check
this.

Symptom

What to do

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