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ZYCOO CooVox U20 V3


Our Price: £231.00 (277.20 inc VAT)

Product Code: ZYC-U20V2

Power Adaptor:


Choose your U20 Modules:

Optional onboard GSM/UMTS Module:


The CooVox-U20 IP Phone System is the second generation of Mini IP Phone System launched by ZYCOO, while still being the first Mobile IP Phone System with the ability to use the GSM module to connect to the mobile network for mobile telephony. CooVox-U20V3 is a next-generation smart IP PBX System designed and optimized for todays business telecommunication needs. CooVox-U20 is an affordable, scalable, interoperable, secure and reliable solution which provides not only traditional PBX features such as Automated Attendant and Voicemail, but also many advanced features including Remote Extensions, Conference Bridge, Call Recording, Call Detail Records (CDR), Automatic Call Distribution (ACD), Web Dial, Unified Messaging (Voicemail to Email), and many more features including the first ever PBX at this price to run Asterisk Version 13.

There are two models in CooVox U20-V3 Range

  • U20-A211 - 1 x FXO and 1 x FXS
  • U20-A202 - 2 x FXO

All models support optional 3G Module


Coovox u20 datasheet Download Zycoo CooVox U20 V2 Datasheet
CooVox user guide Download CooVox V2 Administration Guide
CooVox user guide WebRTC Installation Guide

Call Features

Call Back
Call Forward
Call Hold
Call Paging and Intercom
Call Park
Call Pickup
Call Queue
Call Recording
Call Routing
Blind Transfer
Attendant Transfer
Call Waiting
One Number Stations
Caller ID
Dial by Name
Music On Hold/Transfer
3-Way Conference
Video Call

PBX Features

Black List
BLF (Busy Lamp Field)
CDR (Call Detailed Record)
Conference Room (20 Rooms)
Call Monitoring DID (Direct Inward Dialing Number)
DISA (Direct Inward System Access)
Distinctive Ringtone
DND (Do Not Disturb)
DNIS (Dialed Number Identification Service)
Feature Codes FOP (Flash Operation Panel)
Status Monitoring Follow Me IVR (Interactive Voice Responses)
Mobility Extension
Multi-Language Prompts
Multi-Language GUI
One Touch Recording
Phone Book(LDAP Server)
Phone Provisioning
Pin Set
Record File Download
SIP Register with UDP/TCP/TLS
SIP Trunk
Skype for SIP Smart DID Speed Dial
SRTP (Secure Realtime Transport Protocol)
T.38 Fax (Pass-through)
Time Based Rule
Voicemail & Voicemail to Email

System Capacities
Up to 15 Concurrent Calls
Up to 20 Conferences
Up to 30 IP Phone Registers/Extensions
Recording: 36,000 mins (.gsm); 4,000 mins (.wav)
Voicemail: 36,000 mins (.gsm); 4,000 mins (.wav)

Codecs & Protocols

Audio Codecs: G.722/G.711-Ulaw/G.711-Alaw/ G.726/G.729/GSM/SPEEX
Video Codecs: H.261/H.263/H.263+/H.264
Protocols: SIP (RFC3261)/IAX2

Network Features

DDNS Client
DHCP Server
IP Assignment (PPPoE/DHCP/Static)
SNMP v1/v2 TR069
Static Route Table
Trouble Shooting (Ping/Traceroute)
VPN Client (N2N/L2TP/PPTP/OpenVPN/IPSec)
VPN Server (PPTP/L2TP/OpenVPN/IPSec)

Security Features

Refuse SIP Register DoS
Refuse Abort Invite DoS
Refuse SSH Login DoS


Web Access Log
PBX Debug Log

Zycoo offer a range of Free Add-ons for CooVox including:


CooCall is a dedicated Zycoo softphone for use on Coovox systems and can be downloaded FREE from Zycoo's website. This enables even greater mobility for Zycoo users allowing you to make and recieve calls wherever you are.