Version 5.2 395 September 2007
SIP User's Manual 11. Selected Technical Specifications
11 Selected Technical Specifications
The General Specifications (listed in 'General Specifications' on page 395) apply to the
Mediant 2000, TP-1610 and TP-260 gateways. For the product-specific specifications, refer
to the following sections:
îš„ Mediant 2000 (refer to 'Mediant 2000 Specifications' on page 397)
îš„ TP-1610 (refer to 'TP-1610 Specifications' on page 399)
îš„ TP-260 (refer to 'TP-260 Specifications' on page 401)
Note: All specifications in this document are subject to change without prior notice.
11.1 General Specifications
Table 11-1: General Selected Technical Specifications
Function Specification
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;
NetCoder at 6.4, 7.2, 8.0 and 8.8 kbps; EVRC; AMR; Transparent; GSM
Full Rate; Microsoft GSM; GSM-EFR; iLBC; QCELP
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)
NetCoder
Packet Loss
Concealment
G.711 appendix 1
G.723.1
G.729 a/b
Echo Cancellation
G.165 and G.168 2000, configurable tail length per gateway from 32 to
128 msec
DTMF Detection and
Generation
Dynamic range 0 to -25 dBm, compliant with TIA 464B and Bellcore TR-
NWT-000506.
DTMF Transport (in-
band)
Mute, transfer in RTP payload or relay in compliance with RFC 2833
Call Progress Tone
Detection and Generation
32 tones: single tone, dual tones or AM tones, programmable 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
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