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SIP Intercom Audio Module —SIP2703V

- Fully functional version based on SIP2701V
- Add transparent transmission serial port transparent transmission I/O function.
- Support customization for customers
  • SIP2703V




The SIP2703V network audio module supports the standard sip protocol and can be used with other SIP endpoints in standard SIP systems. It supports the G.711a/u and G.722 audio codec protocols and can be used for applications such as VoIP and IP paging as well as high quality music streaming. The SIP2703V also supports our private protocols so it can be used with our standard broadcast software. Implementations include additional features such as live paging, timed announcements, background music and emergency announcements.


•  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



  • 4.7-5.5VDC

Audio Interfaces

  • Analog stereo out 1.5Vpp, Volume adjustable by application

  • Mic in,frequency range of 70Hz to 12.5KHz

  • Line in,typical amplitude 2000mVpp

User / Application Interfaces

  • Integrated management system (software/web)

  • browser based, serial or Ethernet control API

  • 3 Push button interface for intercom and paging


  • 52mm×40mm×15mm

  • Operating temperature range -40~85℃

  • Storage temperature range -40~85℃

Network Interface

  • 10/100M Base adaptive Ethernet interface

  • SIP v1 (RFC2543), v2 (RFC3261), TCP, UDP, RTP, ARP, ICMP, DHCP, DNS, IGMP.

  • DTMF: in-band (RFC2833), out-of-band (SIP_INFO)

Audio Formats

  • G.711 a/u,G.721,PCM encodec

  • G.711 a/u,G.722,PCM,mp3 decodec

  • MP3 up to 192 kBit fixed & variable bit rates

  • Opus by OEM

  • Supports acoustic echo cancellation

Misc. Interfaces

  • 2 inputs and 2 outputs General Purpose I/O

  • 2 state outputs with TTL Level

  • Transparent transmission serial port

  • 35 pins


SIP2703V Network Audio Module Specification

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

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