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4 Ports FXO VoIP Gateway

4 Ports FXO VoIP Gateway

size:30 × 150 × 109 mm

A VoIP gateway or IP voice gateway is a network device that helps convert voice and fax calls between real-time IP networks and the Public Switched Telephone Network (PSTN). It is a high performance gateway designed IP voice application.
4 ports VOIP Gateway

4 ports VOIP Gateway KNFX-4


           *Flexible configuration of FXS/FXO ports

           *SIP/MGCP protocols

           *500 routing and number manipulation rules

           *Support Smart Fax over IP (SFoIP)

           *PSTN failover


           *Auto provisioning

           *Remote access via New Rock Cloud (US: YoubiquITy)

           *Management with New Rock or third-party EMS (TR-069, SNMP)

           *Interoperability with popular SIP servers, such as Cisco CallManager/CUCM, Broadsoft, Microsoft Skype for Business (Lync), Huawei IMS, VoS, FreeSWITCH and Asterisk/Elastix 

           *Class I lightning protection

            Developed for small businesses, SOHO and residential IP telephony applications, the KNFX-8 gateway is integrated VoIP devices that provide reliable and cost efficient access methods flexible for deploying converged communication solutions for network operators and enterprises as well.

            KNFX-8 is designed as compact units with 2 or 8 FXS/FXO ports, 1 WAN port, and 1 PC port, which allow users to apply them as N-to-1 systems capable of providing versatile solutions by connecting analog phone, fax and POS machine, IP telephony and PSTN.

Comprehensive Feature Set with Intelligent Engine

            As intelligent gateways running on embedded Linux operating system, KNFX-8 is compatible with many highlighted features such as call forward, call transfer, 3-way conference, caller ID, DND, color ringback, forking, automatic routing, digitmap, PSTN failover, and much more to provide a complete and highly reliable VoIP solution applicable to most scenarios.

High Reliability

            The hardware design of the KNFX-8, from architecture to component selection, take full consideration of improving their reliability. In addition, with high availability featuring primary-standby, active-standby and load balance as well as PSTN failover designed to handle the failure of the SIP proxy servers, power supply and network, the users are provided with carrier class reliability with minimized potential downtime

Robust Protection against Intrusions

            KNFX-4 provide rich set of features to support perimeter protection against malicious intrusions, such as brute force logins and SIP attacks, ensuring a high level of security in your IP telephony environment.

Remote Management and NAT Traversal

            The KNFX-4 include the New Rock Cloud client, providing easy access with NAT traversal to endpoint devices and value-added applications for remote, real-time monitoring, maintenance, software upgrades, troubleshooting, data analysis, alarm notification, remote and packet 


CPU 700 MHz
Flash 16 MB
H×W×D (1U) 30 × 150 × 109 mm
Weight (net) 0.3 kg
Power 12VDC/1.5V
Power consumption 6 W
Mounting Desktop
Operating Temperature: 0 to 40°C Humidity: 10 to 90% RH (non-condensing)
Storage Temperature: -40 to 70°C Humidity: 5 to 90% RH (non-condensing)

==>>>> Product Specification
Call control SIP/UDP and SIP/TCP (RFC3261),IMS (3GPP), MGCP (RFC3435)
Network SSH, HTTP, HTTPS, DHCP/PPPoE client,Radius, DNS (A/SRV record), STUN
Media Processing
Caller ID Bellcore/Telcordia, ETSI, BT, DTMF
Codec G.711 (a/μ), G.729a, G.722
DTMF In-band audio, RFC2833, SIP-INFO
Hook-flash Local processing, RFC2833, SIP-INFO
Fax over IP T.38, G.711 pass-through T.38 compliant Group 3 Fax Relay Maximum fax rate of 33,600 bps (T.38) Support Smart Fax over IP (SFoIP)
Disconnect modes Polarity reversal,Busy tone detection, Loop current
QoS DiffServ, TOS, 802.1P/Q VLAN tagging
Voice-quality enhancement Echo cancellation (G.168-2004), Jitter buffer, Silence suppression (VAD, CNG), PLC
Call transfer Blind transfer, Consultative transfer
Call forward Call forward all, Call forward no answer,Call forward busy
Callrecordingstorage Remote recording server for storage
Call settings Routing based on the caller or callee number, Digit map, 3-way calling, Speed dialing, Do not disturb, Call forking, Color ringback tones, Hunt group, Ring cadence, Message Waiting Indicator (MWI)
Encryption Encrypted password/PIN
Intrusion prevention Brute force login protection, Access list, Firewall, SIP-allowed IP addresses, Alarm and notification*
VLAN Auto discovery via DHCP, Manual configuration
VPN client L2TP, OpenVPN
High Availability
Redundancy Primary-Standby, Active-Standby, Load balancing
PSTN failover Power failure, Network failure
Provisioning, Administration and Maintenance
Device management New Rock EMS, TR-069 management(TR-069, TR-104 and TR-106), SNMP
Remote access over TCP New Rock Cloud (US: YoubiquITy)
Auto provisioning Download configuration file via TFTP/FTP/HTTP/HTTPS, Obtaining ACS address via DHCP option 66 or redirection
Log management 8-level logs, Syslog
Data capture Port capture, Packet capture
Status and statistic Call status and history, Device status monitoring and statistics collection
Upgrade FirmwareupgradeviaWebGUI orAuto provisioning
Included Software
Finder Obtains IP addresses of devices in a LAN environment
Telegreeting Formats pre-prepared IVR audio files for uploads them into a device
Recording Agent Receives recording streams in PCM andconverts them into MP3 format. Includes management functions such as search, play, delete andbackup

==>>>>Telephone System

4 ports VOIP Gateway

==>>>>Product Application

4 ports VOIP Gateway

==>>>>Product Detailed Pictures
4 ports VOIP Gateway

==>>>>Product Video

==>>>>Please Email US marketing@koontech.com

This product model:KNFX-4