User`s manual
MediaPack
SIP User's Manual 336 Document #: LTRT-65408
16.2 MP-124 Specifications
Table 16-2: MP-124 Functional Specifications (continues on pages 336 to 338)
Channel Capacity
Available Ports
MP-124 24 ports
FXS Functionality
Short or Long Haul (Automatic Detection):
REN2: Up to 15.5 km (50,800 feet) using 24 AWG line.
REN3: Up to 9 km (30,000 feet) using 24 AWG line.
REN5: Up to 5.5 km (18,000 feet) using 24 AWG line.
Note: The lines were tested under the following conditions: ring voltage greater
than 32 Vrms, offhook loop current greater than 20 mA (all lines ring
simultaneously).
Includes 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 contact AudioCodes.
Programmable ringing signal. Up to three cadences and frequency 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 and
DTMF based.
Voice & Tone Characteristics
Voice Compression
G.711 PCM at 64 kbps ยต-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 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 (10, 20, 30, 40, 50, 60 msec)
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
Echo Canceler
G.165 and G.168 2000, 64 msec
Gain Control
Programmable
DTMF Transport (in-band)
Mute, transfer in RTP payload or relay in compliance with RFC 2833
DTMF Detection and
Generation
Dynamic range 0 to -25 dBm, compliant with TIA 464B and Bellcore TR-NWT-
000506.