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Pin Type SIP Protocol Intercom Module Board with Transparent Transmission Function

The SIP2703V network audio module is a general- purpose stand-alone SIP audio function module that can be easily embedded into OEM products. This module encodes and decodes SIP protocol and rtp audio stream from the network.
  • SIP2703V



SIP2703V supports a variety of network protocols and audio codec protocols, and can be used for applications such as VoIP and IP paging, and high-quality music streaming media play


• Standard RJ45 network interface, providing firmware online remote upgrade;

• Based on ARM + DSP architecture, high-speed industrial chip is adopted, with startup time ≤ 1s;

• Provide multiple IO interfaces and enrich module functions;

• It has the function of controlling serial port and can control the work of the module;

• It has the general serial port function and can realize the transparent data transmission function;

• It has an audio line output port, which can be externally connected to an active speaker for sound amplification;

• With audio line input port, external active microphone can be connected for intercom.


  • power input: Voltage DC 4.7 ~ 5.5V

  • Maximum working current, 200mA

  • temperature: Operating temperature range Industrial grade: -40~85℃,storage temperature range -40~85℃

  • Network : 10/100M Base adaptive Ethernet interface

  • Mic input: Typical amplitude 50mVrms, signal-to-noise ratio 95dB

  • LineIn input: Typical amplitude 1000mVrms, SNR 95dB

  • Line Out output:Load 10KΩ, typical 1000Vrms, signal-to-noise ratio 95dB (in playback mode)

  • Decoding : Provide stereo playback, up to 48kHz, 320kbps audio stream, support MP3.WAV (PCM +IMA ADPCM), G.711 a/u, G.722 and other formats,the minimum delay is50ms

  • Encoding : Support G.711a/u, G.722 and RTP mode,the minimum delay is 30ms

  • Bidirectional : Two-way intercom, with high-performance echo suppression algorithm, support G.711 a/u, G.722 encoding.The minimum delay is 80ms

  • Intercom control port: There are three control interfaces of Call1, Call2 and Call3 in total, and this interface has two working modes: [Pulse Mode] and [Hold Mode].

  • control serial interface: Baud rate 115.2kbps

  • GPIOs: A total of 4 general-purpose IOs, of which 2 are input and 2 are output(onlysupported by SIP2703V)

  • Universal serial port: Support transparent transmission, baud rate 2400 ~ 115.2kbps, 7, 8

  • data bits, 1, 2 stop bits, None, Even, Odd, Space, Mark check(only supportedby SIP2703V)

  • module size: Length x width x height: 52 x 40 x 15mm


• Various commercial network audio streaming applications

• Network alarm, network player

• Universal two-way full-duplex VoIP intercom for paging and intercom applications

• Source Encoder for IP Audio Distribution Applications

• Background Music and Music On Hold Encoder for VoIP Applications

• Compatible with various low-latency IP audio encoders

• Unmanned parking lot, self-service charging station intercom terminal

• Expressway tunnel intercom, toll station intercom terminal

The SIP2703V network audio module works with other SIP terminals in standard SIP systems. In addition to supporting standard SIP protocols, this family of modules also has sinrey proprietary protocols that can be used with sinrey standard broadcast software. The corresponding software package can be downloaded from the SINREY website.


SIP2703V Network Audio Module Specification


Manager Manual.pdf

Add:Room 902, 863 building, Guangzhou private science and Technology Park, Taihe Town, Baiyun District, Guangzhou, Guangdong,China

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