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Relay media gateway

Relay media gateway

model:KNGW-E1
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Relay media gateway
KNGW-E1 is a new generation of intelligent voice gateway designed for business/industry/operator business needs. Based on the design concept of maintainability, manageability and operation, it has the characteristics of carrier-grade, high-density, large-capacity and enhanced functions such as IP voice, IP fax, modem and voice recognition, providing users with flexible and efficient structure. A communication network for the future.

voice gateway KNGW-E1

The KNGW-E1 relay gateway supports multiple signaling protocols to implement traditional signaling SS7, PRI, signaling between No. 1 and SIP. It supports multiple voice codecs, provides complete codec capability, provides users with high-quality voice and improves the use efficiency of relay resources. It is widely used in access networks of all sizes, such as small and medium-sized enterprises, call centers, operators and large enterprises.

Intelligent gateway, feature-rich


Support black and white list of calling and called numbers


Flexible routing and number change


Supports 60-way full concurrency using the RJ48C standard E1/T1 interface


DTMF mode supports RFC2833, SIP INFO, Inband


Multiple coding standards: G.711A/U, G.723.1, G.729A/B, iLBC, ARM




High performance, stable and reliable


It is a new generation of intelligent trunking gateway designed by Dingxin Tongda for the business needs of enterprises/industries/operators. Adopt 1U height standard rack design, fully embedded system, high performance CPU, dual power supply design, stable and reliable.



Standard protocol, good compatibility


The SIP RFC3261 standard protocol is used to support the Huawei NXP/IMS platform such as Huawei SoftX3000, ZTE, Cisco, Alcatel, and IPPBX systems such as Asterisk and Freeswitch.


Support PRI/SS7 (ISUP/TUP) signaling, seamlessly connect with Alcatel, Siemens, Avaya, Cisco, Huawei, ZTE and other switches, perfect access to operators.




Integrated device cloud management platform(DMCloud)


DMCloud is a self-developed integrated network management cloud platform. Users can manage the devices in a distributed manner and create different areas and sites based on the actual deployment of the device to help users understand the installation and online status of the device. In addition, the system also provides real-time monitoring, alarm push, bill statistics, performance statistics and other functions.


Provide remote web, remote telnet, etc., convenient for users to remotely locate, save operation and maintenance costs, improve operation and maintenance efficiency;






==>>>> Product Specification

Main characteristics

 • High cost performance, strong business expansion capability, maximum support for 60 concurrent 

 • Service-oriented architecture, rich service support, support for voice, IP fax and Modem/POS services 

 • Flexible dialing rules and operations, users can customize the dialing rules and quantity according to different countries and regions to adapt to different work scenarios. 

 • Multiple coding standards: G.711A/U, G.723.1, G.729A/B, iLBC, AMR

• Good compatibility, support Huawei SoftX3000, ZTE, Cisco and other softswitch platforms

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Physical specification
        • Quantity of E1/T1 ports 1/2 E1/T1
        •Interface Type RJ48 (impedance 120Ω) 
        • Ethernet interface FE1: 10/100 Base-T Adaptive Ethernet FE0: 10/100 Base-T Adaptive Ethernet 
        • Serial port 1* RS232, 115200bps
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Speech characteristics
        • Speech coding: G.711a/μ law, G.723.1, G.729A/B, iLBC, AMR
        • Mute suppression and detection
        • Comfort noise generation
        • Voice activity detection
        • Echo cancellation (G.168), up to 128ms
        • Adaptive dynamic buffering
        • Voice, fax gain control • Fax: T.38 and Pass-through
        • Support Modem/POS
        • DTMF mode: RFC2833/SIP Info/In-band
        •Clear Mode
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Software features
        Local ringback/color ring pass Overlapping Number-Receiving
        Dialing rules, up to 2000
        Relay group by E1 port/slot
        IP relay group configuration
        Speech codec grouping
        White list of calling and called numbers Blacklist of calling and called numbers
        IP access list firewall function
        IP relay priority
        Voice and signaling encryption (VOS RC4)
        Call processing
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Flexible routing
        PSTN-PSTN, PSTN-IP, IP-IP, IP-PSTN
        Redundant route backup/selection Control call routing by time period
        Routing by primary/called number prefix Support 256 routing rules in different directions Master called number change
        Support 128 number change rules
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PSTN
        •ISDN PRI 23B+D(T1), 30B+D(E1), NT or TE configurable ITU-T Q.921, ITU-T Q.931, Q.Sig
        • Signaling No. 7 / SS7 ITU-T, ANSI, ITU-CHINA
        • Signaling No. 1 / R2 MFC China No. 1 and 22 other variants MTP1/MTP2/MTP3, TUP/ISUP
        • E1 frame format type DF, CRC-4, CRC_ITU
        • T1 frame format type 4-Frame Multi-frame (F4, FT), 2-Frame Multi-frame (F12, D3/4), Extended Super-frame (F24, ESF), Remote Switch Mode (F72, SLC96) 
        • Line coding method E1: NRZ, CMI, AMI, HDB3 T1: NRZ, CMI, AMI, B8ZS
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VoIP protocol
        •SIP v2.0 (UDP/TCP), RFC3261 SDP, RTP (RFC2833), RFC3262, 3263,3264,3265,3515,2976,3311
        • RTP/RTCP, RFC2198, 1889
        • SIP-T, RFC3372, RFC3204, RFC3398
        • SIP relay working mode: Peer/Access
        • SIP/IMS registered account: up to 256
        • NAT: Dynamic NAT, Rport
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Management and maintenance
        Web-based visual configuration and maintenance Data backup/recovery
        PSTN call and release reason statistics SIP trunk call and release reason statistics TFTP/Web firmware upgrade Network capture
        SNMP v1/v2/v3
        System log: Debug, Info, Error, Warning , Notice Calling bill
        NTP automatic time synchronization
        Support centralized cloud integrated management platform
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Physical characteristics
        Power supply: 100-240VAC, 50-60 Hz • Power consumption: 10W
        • Operating temperature: 0 °C ~ 45 °C Storage temperature: -20 °C ~80 °C
        • Humidity: 10%-90% without condensation
        • Size (W/D/H): 436*300*44.5mm (1U) 
        • Weight: 2.0kg • Certification: CE, FCC
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==>>>>Telephone System

Relay Media Gateway

relay media gateway

==>>>>Product Application

Relay Media Gateway Application

relay media gateway

==>>>>Product Detailed Pictures

Relay media gateway detailed picture

relay media gateway

==>>>>Product Video

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

This product model:KNGW-E1

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