General Specifications - 3Com V7122 User Manual

A
PPENDIX
S
PECIFICATIONS

General Specifications

The General Specifications (show in
gateways. For the product-specific specifications, see:
V7122 (V7122 Specifications).
TP-1610 (TP-1610
TP-260 (TP-260 Specifications).
General Selected Technical Specifications
Table 78
Function
Voice & Tone Characteristics
Voice Compression
Silence Suppression
Packet Loss Concealment G.711 appendix 1
Echo Cancellation
V7122 Gateway User Guide
A: S
ELECTED
Table 78) apply to the V7122, TP-1610 and TP-260
Specifications).
Specification
G.711 PCM at 64 kbps µ-law/A-law (10, 20, 30, 40, 50, 60, 80, 100,120
msec)
G.723.1 MP-MLQ at 5.3 or 6.3 kbps (30, 60, 90, 120 msec)
G.726 at 32 kbps ADPCM (10, 20, 30, 40, 50, 60, 80, 100,120 msec)
G.729 CS-ACELP 8 kbps Annex A / B
msec)
NetCoder at 6.4, 7.2, 8.0 and 8.8 kbps
msec).
EVRC (20, 40, 60, 80, 100 msec).
AMR (20 msec)
Transparent (20, 40, 60, 80, 100, 120 msec)
GSM Full Rate (20, 40, 60, 80 msec)
Microsoft GSM (40 msec)
msec
GSM-EFR (20
G.723.1 Annex A
G.729 Annex B
PCM and ADPCM: Standard Silence Descriptor (SID) with Proprietary Voice
Activity Detection (VAD) and Comfort Noise Generation (CNG)
NetCoder
G.723.1
G.729 a/b
G.165 and G.168 2000, configurable tail length per gateway from 32 to 128
msec
T
ECHNICAL
(10, 20, 30, 40, 50, 60, 80, 100
(20, 40, 60, 80, 100, 120
)
399