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High Quality SIP Network Intercom Audio Module 2403T

SIP2403T is a general-purpose stand-alone SIP audio function module, supports a variety of network protocols and audio codec protocols, and can be used in applications such as VoIP and IP paging and high-quality music streaming media playback. At the same time, SIP2403T also provides two serial ports, four digital input/output, allowing users to control through serial port commands.
  • SIP2403T




SIP2403T 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 the SIP protocol and RTP audio stream from the network.SIP2403T also provides two serial ports, four digital input/output, allowing users to control through serial port commands.


l power input:  Voltage DC 12 ~ 24V.Maximum working current, 2000mA

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

l Network : 10/100M Base adaptive Ethernet interface

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

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

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

l RL-Line input:  Local PA input, typical amplitude 1000mVrms, signal-to-noise ratio 95dB

l Power output: Power amplifier output, output power 2*15W or 1*40W, connected to 8 ohm constant resistance speaker

l 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

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

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

l 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].

l control serial interface: Baud rate 115.2kbps

l GPIOs: A total of 4 general-purpose IOs, of which 2 are input and 2 are output(only supported by SIP2403T)

l 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 supported by SIP2403T)

l module size: Length x width x height: 5.7 x 5.7 x 1.7cm


  • 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 SIP 2403T Network Audio Module is compatible with other SIP endpoints in standard SIP systems. Both standard SIP protocols and sinrey proprietary protocols are supported, enabling seamless integration with sinrey standard broadcast software. Additional features offered by the module include real-time paging, scheduled announcements, background music and emergency announcements.

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

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