Mitel MiVOICE BUSINESS, Engineering Manualline

Page: 69 / 381

Typical Configurations
55
A system with two Quad BRI does not have enough DSP resources without a dual or Quad
21161 DSP MMC. A slot is not available for the DSP II card. Consequently, for this configuration
G.729 still has to be provided by the 21161 DSPs. T.38 support is not available for this
configuration.
CX/CXI II HARDWARE CONFIGURATIONS
The CX-II and CXi-II have enough DSP resources on board for all normal telephony
requirements up to their rated line size, and there are 32 echo cancellers available in the base
configuration. To get additional echo cancellers the T1/E1 Combo Module must be installed;
32 channels are added with the first module, to the maximum available of 64. A second module
does not increase the EC channels.
Compression channels can be added using the DSP devices on the T1/E1 Combo modules (if
compression is licensed), but these only can provide up to a maximum of 16 channels. The
DSP-II module must be added to get more than 16 compression channels, to a maximum of
64. This module is also required for T.38 FAX. The DSP-II module DOES NOT PROVIDE
additional telephone resources (tone detectors and receivers, voice mail, or conference). When
a DSP-II module is added, the DSP devices on the T1/E1 Combo Module will not be used for
compression, but will provide additional telephony resources if they are needed.
Table 20: Maximum CX Feature Availability With DSP II
SYSTEM
HARDWARE
CONFIGURATION
LINES TRUNKS
#
D
S
P
DSP USAGE H
/
W
V
E
C E
C
H
O
G.
7
2
9 T.
3
8
C
O
N
F
V
M IP ONS LS
T1/E
1 1 2 3 4 5 6 7 8
Base + Dual DSP +
DSP II + Quad CIM 100 150 28 0 4 E E T T 0 20 64 8 10x3 16
Base + Quad DSP +
T1/E1 Combo +
Quad CIM 100 150 28 24/30 6 E T T T T T 1 42 64 8 10x3 16
Base + DSP II
+ 2 T1/E1 Combo 100 8 12 48/60 4 E T T T 2 74 64 8 10x3 16
Base + Quad DSP +
DSP II + Quad BRI 100 8 12 8 BRI 6 E E E T T T 0 30 64 8 10x3 16
Base + Quad DSP +
DSP II + Quad CIM 100 150 28 0 6 E E E T T T 0 30 64 8 10x3 16