Nortel M3820 Installation And Administration Manual page 215

January 2005
Symptom
There are noticeable gaps or poor
quality when a voice call is active
on the IP network.
Incoming calls are not being
received from the host PBX.
Digital Telephone IP Adapter Installation and Administration Guide
What to do
Contact your network administrator to
conduct a traffic study on your voice and IP
network traffic patterns as described in the
Remote Gateway Network Engineering
Guidelines (NTP 555-8421-103). (This NTP
is available from your Nortel distributor.) 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.
1 Ensure your telephone is not on call
forward.
2 Ensure that the Digital Telephone IP
Adapter unit is not in offline mode by
entering the online SPRE code at a
digital telephone.
3 Ensure that the Digital Telephone IP
Adapter unit is powered up. It cannot
receive calls from the host PBX if it is
not powered up.
4 Ask the network administrator to ensure
that the RLC is correctly configured with
your Digital Telephone IP Adapter unit's
IP address, telephone number, and
security ID (if they are used).
Troubleshooting
215