IDM Voice365

1 Overview

The IDM Voice365-12 is an Audio over IP transmission device that transmits high-fidelity audio and control information over IP networks. It can be registered to an IoT server for use, or deployed in a local area network for networking applications.

The IDM Voice365-12 Audio over IP transmission device can be used in point-to-point mode, serving as an extension for high-fidelity audio terminal signals over IP networks. It can also be used in networked transmission mode to accomplish point-to-multipoint transmission control.

The IDM Voice365-12 Audio over IP transmission device features 12 bidirectional audio signal interfaces, capable of connecting 12 channels of 64K timeslot audio circuits or high-fidelity audio sources, providing 12 channels of audio input and output.

2 Product Features

(1) Supports G.711A, G.729A, G.722 audio encoding/decoding, or 16-bit high-fidelity lossless transmission;

(2) Each channel supports associated channel signaling transmission;

(3) Supports SNMP network management protocol;

(4) The audio compression encoding format and transmission direction of each channel can be flexibly controlled by the gateway;

(5) Adopts modular design with AC/DC redundant power supply; dual power supplies can operate simultaneously or either one can be selected;

(6) Real-time fault detection with LED indicators displaying fault status.

3 Technical Specifications

1.   Transmission Protocol: TCP/IP protocol suite;
   

High-bandwidth audio encoding/decoding modes: G.711A and high-fidelity (suitable for high-speed links such as fiber optics and wireless bridges). Lossless PCM encoding/decoding: sampling frequency range of 0kHz to 8kHz, sampling rate ≥16KHz, 16-bit quantization; when the number of audio channels is less than 10, 24-bit quantization is supported.

2.   Low-bandwidth encoding/decoding modes:
   

Ø Low-speed link encoding/decoding: G.722, G.729A encoding/decoding,

Ø G.729A and G.722 encoding (suitable for low-rate links such as satellite and 4G networks).

3.   The audio encoding/decoding mode of each channel can be configured via network management or set according to network bandwidth conditions.
   

4.   System latency: The network encoding/decoding latency is configurable; excluding network delay, the system encoding/decoding latency is ≤100ms;
   

5.   Network management agent protocol: SNMP V3.
   

6.   Bandwidth:
   

Ø ≤300kbit/s in lossless PCM voice encoding/decoding mode;

Ø ≤100kbit/s in G.722 voice encoding/decoding mode;

Ø ≤90kbit/s in G.711A voice encoding/decoding mode;

Ø ≤30kbit/s in G.729A voice encoding/decoding mode.

7.   Interface: Four-wire analog audio interface.