AudioCodes MediaPack MP-114, Руководство пользователя

Страница: 160 / 164

User's Manual 160 Document #: LTRT-71405
MediaPack Series
FXO Functionality
FXO Capabilities
Doesn’t apply to the MP-112
Short or Long Haul.
Includes lightning and high voltage protection for
outdoor operation.
Programmable Line Characteristics: AC impedance
matching, hybrid balance, Tx & Rx frequency
response, Tx & Rx Gains, ring detection threshold, DC
characteristics.
Note: For country-specific coefficients use the
parameter CountryCoefficients.
Caller ID detection: Bellcore GR-30-CORE Type 1
using Bell 202 FSK modulation, ETSI Type 1, NTT,
Denmark, India, Brazil, and DTMF ETSI CID (ETS
300-659-1).
Additional Features
Polarity Reversal / Wink Immediate or smooth to prevent erroneous ringing
Metering Tones 12/16 KHz sinusoidal bursts (FXS only)
Distinctive Ringing By frequency (15-100 Hz) and cadence patterns
Message Waiting Indication
DC voltage generation (TIA/EIA-464-B), V.23 FSK
data, Stutter dial tone and DTMF based.
Voice & Tone Characteristics
Voice Compression
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
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)
EG.711, G.722 (in Analog modules)
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 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.