It is dedicatedly designed for CooVox IP PBX

to expand 16 FXS ports for connecting with

analogue phones or Fax machines. It is

ultra-Zero-Touch Installation with CooVox

IP PBX, license free and scalable to stack

more EX16S units.



An accessory of CooVox IP PBX to extend more FXS ports.

Ultra Zero-Touch Installation

While attaching EX16S to CooVox IP PBX in a LAN network, there is no configuration required to implement EX16S.

Technical Specifications

  • Dualcore 1GHz A7 Processor
  • 512MB DDR3 SDRAM
  • 16GB SD Card
  • 16 x FXS
  • 2x10/100Mbps RJ45
  • SIP(RFC3261)
  • G.722,G.711U-Law,G.729,GSM,SPEEX
  • Working Temperature:0℃~40℃
  • Storage Temperature:-20℃~55℃
  • Humidity: 5 ~ 95% Non-condensing


Name Version Size Release Date Download
EX16S Firmware V2.1.7 790 K 2018-05-24
EX16S Use Manual V2.1.7 1.23 M 2018-05-24
CooVox EX16S Datasheet V2.1.7 1.23 M 2018-05-24