SIP User's Manual 476 Document #: LTRT-65412
MP-11x & MP-124
Function Specification
MP-11x / FXO Functionality
FXO Capabilities
(Note: Applicable only
to MP-114 & MP-118)
Short or Long Haul
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 (applicable only to FXS interfaces)
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 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
Echo Canceler
G.165 and G.168 2000, 64 msec
Gain Control
Configurable
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
Answer Detector
Speech detection
Call Progress Tone
Detection and
Generation
32 tones: single tone, dual tones or AM tones, configurable frequency &
amplitude; 64 frequencies in the range 300 to 1980 Hz, 1 to 4 cadences
per tone, up to 4 sets of ON/OFF periods
Output Gain Control
-32 dB to +31 dB in steps of 1 dB
Input Gain Control
-32 dB to +31 dB in steps of 1 dB
Fax/Modem Relay
Fax Relay
Group 3 fax relay up to 14.4 kbps with automatic fallback
T.38 compliant, real time fax relay
Tolerant network delay (up to 9 seconds round trip)
Modem Transparency
Auto switch to PCM or ADPCM on V.34 or V.90 modem detection
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