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Key benefits

  • High performance
  • 4 FXS ports
  • 4 LAN (1GE) ports
  • WAN with support for SFP transceivers
  • 1 USB port for external storage device connection
  • TR-069
  • Wi-Fi 802.11 b/g/n
  • Wi-Fi 802.11 a/n/ac

RG-1504GF-Wac is a high performance VoIP gateway with a built-in router. The device supports various services: VoIP, IPTV, high-speed Internet, dual-band Wi-Fi that can operate simultaneously in 2.4 GHz and 5 GHz.

Solution for business
Wide functional opportunities and stable operation at high loads provides RG-1504GF-Wac operating as a universal office terminal without additional equipment.
Built-in gigabit router with 4 ports of 10/100/1000BASE-T allows to organize high-speed connection of the devices in the network. Support for advanced VoIP standards provides reliable operation in the mode of interaction with free IP-PBX solutions.

High quality of voice signal
RG-1504GF-Wac transmits voice, facsimile data and modems via IP network. Subscribers are provided with an up-to-date set of supplementary services: call transfer, call hold, three-way conference, call pickup, Caller ID, call forwarding, hot line, etc. QoS methods are used for high-quality voice transfer.

When the connection with the main SSW is lost, the system can be automatically switched to a redundant SIP server and controls availability of the main server. When the connection with both IP telephony servers is lost, the local connection between gateway subscribers is still available.

Up-to-date Wi-Fi features
Due to support for 802.11ac standards, RG-1504GF-Wac provides 866 Mbps data rates and allows to deliver up-to-date high-speed services to subscriber equipment via wireless network. Two built-in Wi-Fi controllers allows simultaneous operation in 2.4 GHz and 5 GHz frequency ranges.


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    • 4 FXS ports
    • 1 port of WAN 100/1000Base-X
    • 4 port of LAN 10/100/1000Base-T
    • 1 port of USB 2.0
    • Wi-Fi IEEE 802.11b/g/n (2.4 GHz), Wi-Fi IEEE 802.11a/n/ac (5 GHz)

    VoIP protocols

    • SIP

    Voice codecs

    • G.711 (a-law, µ-law)
    • G.723.1
    • G.729a
    • G.726
    • G.722
    • iLBC
    • GSM
    • AMR
    • OPUS

    Voice standards

    • VAD (voice activity detector)
    • CNG (comfort noise generation)
    • AEC (echo cancellation, G.168 recommendations)


    • Detection and generation of DTMF signals
    • Transmission via INBAND, RFC 2833, SIP INFO

    Supplementary services

    • Call Hold
    • Call Transfer
    • Call Waiting
    • Call Forwarding on Busy (CFB)
    • Call forwarding on No Answer (CFNA)
    • Call Forwarding Unconditional (CFU)
    • Caller ID
    • Calling Line Identification Restriction (CLIR)
    • Hotline/Warmline
    • Call Group
    • 3-Way Conference
    • Call Pickup


    • Supply services management via a phone
    • Operation without a SIP server
    • Support for anonymous calls
    • Support for adaptive jitter buffer
    • Configuration application without reboot

    Quality of Service (QoS)

    • DSCP and 802.1р assignment for SIP and RTP packets
    • Packets distribution due to queues according to priorities of 802.1р or Diffserv

    Fax transmission

    • T.38 UDP Real-Time Fax
    • G.711 (a-law, µ-law) pass-through

    Network features

    • Operation in router and bridge mode
    • Various protocols for carrier network connection (Static, DHCP, PPPoE)
    • Static routing
    • IGMP
    • DHCP and DNS servers on LAN side
    • Port forwarding
    • Firewall
    • Filtering by МАС address
    • Filtering by URL
    • Multiservice model: independent configuration for each service (Internet, VoIP, IPTV, STB, Management and others)
    • VLAN support
    • UPnP (Universal Plug and Play)
    • IPv6 support

    Supported specifications

    • RFC 3261 SIP 2.0
    • RFC 3262 SIP PRACK
    • RFC 4566 Session Description Protocol (SDP)
    • RFC 3263 Locating SIP servers for DNS lookup SRV and A records
    • RFC 3264 SDP Offer/Answer Model
    • RFC 3311 SIP Update
    • RFC 3515 SIP REFER
    • RFC 3891 SIP Replaces Header
    • RFC 3892 SIP Referred-By Mechanism
    • RFC 4028 SIP Session Timer
    • RFC 2976 SIP INFO Method
    • RFC 2833 RTP Payload for DTMF Digits
    • RFC 3108 Attributes ecan and silenceSupp in SDP
    • RFC 4579 SIP. Call Control - Conferencing for User Agents
    • RFC 3361 DHCP Option 120
    • RFC 3550 RTP A Transport Protocol for Real-Time Applications


    • WEB
    • Telnet
    • SSH
    • TR-069 (Eltex.ACS server is recommended to operate with)


    • Device state monitoring via Web interface
    • Debugging information is displayed in Syslog

    USB port

    • USB drive connection with FAT/FAT32/EXT2/EXT3/NTFS file systems – file transferring on a network is realized vie FTP

    Wireless interface

    • Support for 802.11 a/b/g/n/ac
    • Frequency range 2400 ~ 2483.5 MHz, 5150 ~ 5350 MHz, 5650 ~ 5850 MHz
    • Simultaneous Dual Band
    • CCK, BPSK, QPSK, 16 QAM, 64 QAM, 256 QAM modulations
      Operation channels
    • 802.11b/g/n: 1-13
    • 802.11a/n/ac: 36-64, 132-165

    Wireless connection data rate¹

    • 802.11b: 1; 2; 5.5 and 11 M