Tainet VENUS 2916, Руководство пользователя

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Chapter 1 Overview
13
Items Specification

Ring De-bounce: < 200ms (configurable)

Ring Cadence:
- Inter-Pulse < 550ms (Configurable)
- Inter-Cycle < 5000ms (Configurable)

Auto Answer after Ring: 1 ring (Configurable)
Line Disconnection

Detection of the Disconnection Tones: (User Configurable)
- Busy Tone
- Reorder Tone
- Congestion Tone

Long Dial Tone without Dialing: 10 seconds

Line Reversal Detection
Voice Codec

ITU-T G.711 µ-Law (64kbps)

ITU-T G.711 A-Law (64kbps)

ITU-T G.723.1 (6.3K/5.3kbps)

ITU-T G.729A (8kbps)

ITU-T G.726 (16k/24k/32k/40kbps)
Tone Generation
and Detection

DTMF, Call Progress tones (Dial tone, Busy tone, Ring
back tone, Congestion tone, Off-hook notice tone, etc)

V.21/V.25/V.8 tone detection for automatic data/fax/voice
switch over to G.711 voice coder
Quality
Enhancement
Technologies

Voice Activity Detection (VAD)

Silence Suppression

Comfort Noise Generation (CNG)

Adaptive Jitter Buffer

Echo Cancellation (ITU-T G.165/G.168 compliant)

Compensation for Loss of Packet

In-band or Out-band DTMF Relay

Selectable TX/RX Gain Controls
Call Signaling
(Call Control)
Protocols

IETF RFC-3261 Session Initiation Protocol (SIP)
Voice Packet
Encapsulation

IETF RFC-1889 Real Time Protocol (RTP)

IETF RFC-2833 RTP payload for DTMF Digits, Telephony
Tones and Telephony Signals
Media
Description
Protocol

IETF RFC-2327 Session Description Protocol (SDP)