Loss Plans And Pad Values; Codec Selection; Ip Trunk 3.01 (And Later) Requirements; Package Requirements - Nortel 1000 Fundamentals

There are no direct media paths between the Meridian 1 telephones and the
CS 1000M telephones. There are direct paths between the IP Trunk 3.01
(and later) IP trunk cards and the CS 1000M telephones.

Loss plans and pad values

When the IP Trunk card is in a CS 1000 system, it can take advantage
of the Dynamic Loss Plan developed for the IP Peer product. This allows
the system core to inform the IP Trunk card of the correct pad levels to be
used. As with IP Peer, it also allows the creation of a custom table when the
environment requires one.
When using Dynamic Loss Plan, the node must be provisioned to have a
default loss plan pad of 0 in both the transmit and receive directions. This
allows a 0 transmit and receive level when the IP Trunk has a tandem to
another trunk device, improving voice quality.

Codec selection

A CS 1000M network is generally designed for use with a G.711 Codec.
In cases where minimizing bandwidth usage in a CS 1000M network is a
consideration, G.729 might be used.
Nortel recommends provisioning G.711 Codec in IP Trunk 3.01 (and later) and in
all other network equipment to facilitate communication with CS 1000M.

IP Trunk 3.01 (and later) requirements

IP Trunk 3.01 requires a minimum of Release 25.15 software. To interwork
with the CS 1000M Gatekeeper, CS 1000 Release 3.0 software (or later)
is required.

Package requirements

Table 1 "IP Trunk 3.01 (and later) package requirements" (page 28)
package requirements for the IP Trunk 3.01 (and later) application.
Unlike ITG Trunk 2.0, Q-Signaling protocol (QSIG) support is not required in
IP Trunk 3.01 (and later), though it is available for Large Systems. Meridian
1 Option 11C Cabinet, CS 1000M Cabinet, Meridian 1 PBX 11C Chassis,
and CS 1000M Chassis do not support QSIG signaling. Therefore, the
Multi-purpose Serial Data Link (MSDL), applicable only to Large Systems,
is recommended but not mandatory; the earlier D-channel interface cards
can provide Meridian Customer Defined Network (MCDN) ISDN Signaling
Link (ISL). QSIG and MSDL are incompatible for feature transport. If both
QSIG and MSDL are configured on the network, this can cause the loss of
features such as Name Display, Ring Again, and Transfer Notification and
subsequent path simplification operations.
Copyright © 2007, Nortel Networks
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Recommendation
Nortel Communication Server 1000
IP Trunk Fundamentals
NN43001-563 02.01 Standard
Release 5.5 21 December 2007
IP Trunk 3.01 (and later) requirements 27
lists the