Appendix B Reference Information
Industry Compliance Specifications
B-2
255-700-261
PacketStar
®
8-Port Voice 2-Wire Station Module User Guide
, Issue 1
Release 8.0.0
Industry Compliance Specifications
Compliance specifications for the PacketStar
®
PSAX Multiservice Media Gate-
ways I/O and server modules are contained in Table B-3.
Table B-2. Channel Reduction Availability Caused by Fax Relay Connections vs.
Voice Processing Connections on a DSP2C Module
Number
of DSPs
for Fax
Relay
Total Connections
Assigned for
Fax Relay
Percent of All DSP
Connections
Assigned for Fax
Relay
Remaining Voice
Processing Available
Channels
*
*
For every fax transmission call, both the originally assigned DSP resource, plus
the fax relay DSP resource, are consumed for the duration of the call. Thus,
the total remaining DSP connections is reduced by twice the number of con-
nections using fax mode service.
1
4
3%
124
2
8
6%
120
3
12
9%
116
4
16
13%
112
5
20
16%
108
6
24
19%
104
7
28
22%
100
8
32
25%
†
†
Utilization of DSP resources for fax relay above 25% is not considered realistic
for most service provider environments. If this value exceeds 25%, then the
number of available DSP connections for pure voice mode calls is reduced to
less than 50% of connections available on the DSP2C module.
96
9
36
28%
92
10
40
31%
88
11
44
34%
84
12
48
38%
80
13
52
41%
76
14
56
44%
72
15
60
47%
68
16
64
50%
64
