Version 7.2 1189 Mediant 1000B Gateway & E-SBC
User's Manual 63. Channel Capacity
63.3 E1/T1 Interfaces
The table below lists the supported channel capacity per DSP firmware template for E1/T1
interfaces.
Table 63-4: DSP Firmware Templates for E1/T1 Interfaces
DSP Template
0 or 10 1 or 11 2 or 12 5 or 15 6 or 16
Number of Spans
1 2 4 8 1 2 4 8 1 2 4 8 1 2 4 8 1 2 4 8
Number of Channels
Default settings 31 62 120 192 31 48 80 160 24 36 60 120 24 36 60 120 31 60 100 192
With 128 ms EC 31 60 100 192 31 48 80 160 24 36 60 120 24 36 60 120 31 60 100 192
With IPM Features
(Automatic Gain
Control / AGC,
Answer Machine
Detection / AMD and
Answer Detection /
AD)
31 60 100 192 - - - - - - - - - - - - 31 60 100 192
Voice Coder
G.711 A-law/Mµ-law
PCM
√ √ √ √ √
G.726 ADPCM √ √ √ √ -
G.723.1 √ - - - -
G.729 A, B √ √ √ √ √
GSM FR √ √ - - -
MS GSM √ √ - - -
iLBC
-
- -
√ -
EVRC - - √ - -
QCELP - - √ - -
AMR - √ - - -
GSM EFR - √ - - -
G.722 - - - - √
Transparent √ √ √ √ √
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