Interfaces
- 1x FXS
- 1x WAN 10/100/1000Base-T
- 4x LAN 10/100/1000Base-T
- 2x USB
- Wi-Fi (2,4 GHZ/5,0 GHz, 802.11a/b/g/n/ac)
VoIP protocols
- SIP
Voice codecs
- G.711 (a-law, µ-law)
- G.723.1
- G.729 (A/B)
Voice standards
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VAD (voice activity detector)
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CNG (comfort noise generation)
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AEC (echo cancellation, G.168 recommendations)
DTMF
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Detection and generation of DTMF signals
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Transmission via INBAND, RFC 2833, SIP INFO
Value Added Services
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Call Hold
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Call Transfer
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Call Waiting
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Call Forwarding on Busy (CFB)
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Call Forwarding on No Response (CFNR)
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Call Forwarding Unconditional (CFU)
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Caller ID (FSK Type I, FSK Type II, DTMF)
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Calling Line Identification Restriction (CLIR)
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Hotline/Warmline
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3-Way Conference
VoIP
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Support for several SIP profiles
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Connection with Wi-Fi SIP phones
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Operation without a SIP server
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Flexible numbering plan
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VAS management via a phone
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Collecting call history
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Support for SIP servers via DHCP Option 120
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Support for IMS (3GPP TS 24.623) standards for Call Hold, Call Waiting, 3-Way Conference, Hotline services management
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Geographical redundancy of a SIP server (support for up to 4 backup servers)
Quality of Service(QoS)
- ToS for RTP, SIP packets
Type of connections
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Static IP address
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DHCP
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PPPoE
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PPTP
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L2TP
Network features
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NAT
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Static and dynamic routing
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VLAN support (VLAN per service)
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IGMP
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DHCP-, DNS servers on LAN side
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Port forwarding
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‘Router’ and ‘bridge’ operating modes
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Firewall
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Multi service model: independent configuration for each service (Internet, VoIP, IPTV, management)
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3G/4G router mode
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UPnP
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DLNA
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Support for FTP/SIP/RTSP ALG
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WAN/LAN/WLAN traffic shaping based on IP, MAC, TCP/UDP port, VLAN
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Filtering by MAC address on wired and wireless interfaces
Supported specifications
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RFC 3261 SIP 2.0
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RFC 3262 SIP PRACK
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RFC 4566 Session Description Protocol (SDP)
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RFC 3263 Locating SIP servers for DNS lookup SRV and A records
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RFC 3264 SDP Offer/Answer Model
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RFC 3311 SIP Update
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RFC 3515 SIP REFER
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RFC 3891 SIP Replaces Header
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RFC 3892 SIP Referred-By Mechanism
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RFC 4028 SIP Session Timer
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RFC 2976 SIP INFO Method
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RFC 2833 RTP Payload for DTMF Digits, Flash event
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RFC 3108 Attributes ecan and silenceSupp in SDP
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RFC 4579 SIP Call Control – Conferencing for User Agents
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RFC 3361 DHCP Option 120
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RFC 3550 RTP A Transport Protocol for Real-Time Applications
Management
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WEB (English and Russian versions)
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Telnet
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SSH
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TR-069 (Eltex ACS server is recommended to operate with)
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DHCP-autoprovisioning
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SNMP (configuration, monitoring, collecting the statistics)
Diagnostics
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The device state monitoring via Web interface
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Debugging information is displayed in Syslog, Telnet
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Subscriber lines testing
USB port
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USB drive connection with FAT/FAT32/EXT2/EXT3/NTFS file systems – file transferring on a network is realized via FTP, SAMBA
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USB 3G/4G modem connection – operating in 3G/4G router mode
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Current firmware version 2.4.2
