AudioCodes Mediapack mp-11x, Руководство пользователя

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Version 5.2 385 August 2007
SIP User's Manual 9. Selected Technical Specifications
9.2 MP-124 Specifications
Table 9-2: MP-124 Functional Specifications
Function Specification
Channel Capacity
Available Ports
24 ports
FXS Functionality
Short or Long Haul (Automatic Detection):
ƒ
REN2: Up to 15.5 km (50,800 feet) using 24 AWG line
ƒ
REN3: Up to 9 km (30,000 feet) using 24 AWG line
ƒ
REN5: Up to 5.5 km (18,000 feet) using 24 AWG line
Note:
The lines have been tested under the following conditions: ring
voltage greater than 32 Vrms; offhook loop current greater than 20 mA
(all lines ring simultaneously).
Lightning and high voltage protection for outdoor operation
Caller ID generation: Bellcore GR-30-CORE Type 1 using Bell 202 FSK
modulation, ETSI Type 1, NTT, Denmark, India, Brazil, British, and
DTMF ETSI CID (ETS 300-659-1)
Programmable Line Characteristics: Battery feed, line current, hook
thresholds, AC impedance matching, hybrid balance, Tx & Rx frequency
response, Tx & Rx Gains
Note:
For a specific coefficient file, please contact AudioCodes.
Configurable ringing signal: up to 3 cadences and frequency from 15 to
200 Hz
Over-temperature protection for abnormal situations as shorted lines
FXS Capabilities
Loop-backs for testing and maintenance
Additional Features
Polarity Reversal / Wink
Immediate or smooth to prevent erroneous ringing
Metering Tones
12/16 KHz sinusoidal bursts
Distinctive Ringing
By frequency (15 - 100 Hz) and cadence patterns
Message Waiting
Indication
DC voltage generation (TIA/EIA-464-B), V23 FSK data, Stutter dial tone,
DTMF based
Voice & Tone Characteristics
Voice Compression
G.711 PCM at 64 kbps µ -law/A-law; G.723.1 MP-MLQ at 5.3 or 6.3 kbps;
G.726 at 32 kbps ADPCM; G.729 CS-ACELP 8 Kbps Annex A / B
Silence Suppression
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)].
Packet Loss
Concealment
G.711 appendix 1; G.723.1; G.729 a/b