TAU-4M.IP

رابط ها

• 4 FXS ports 
  
• 1 WAN 10/100BASE-T port
• 1 LAN 10/100BASE-T port for TAU-2M.IP
• 1 USB 2.0 port

پروتکل های Voip

• SIP

Voice codecs

• G.711 a-law, µ-law
• G.722
• G.723.1
• G.726
• G.729 (A/B)

Faxing

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

استانداردهای Voice

• VAD (Voice Activity Detection)
• CNG (Comfort Noise Generation)
• AEC (echo cancellation, G.165, G.168 recommendations)

DTMF

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

سرویس های ارزش افزوده

• Call Hold
• Call Transfer
• Notice of new call arrival (Call Waiting)
• Call forward on busy  (CFB)
• Call Forward No Reply  (CFNR)
• Call Forward Unconditionally  (CFU)
• Caller ID
• Calling line identification restriction (CLIR)
• Hotline/Warmline
• Call Group
• 3-Way conference

قابلیت های Voip

• Internal connections switching
• Operating without SIP-server
• Flexible numbering plan 
• Parameters profiles for ports
• Settings are applied without rebooting
• IMS (3GPP TS 24.623) support for Hold, CW, 3-Way conference, Hotline services management
• SIP TLS support
• # symbol transmission as %23

Quality of Service (QoS)

• Diffserv and 802.1р priority assignment for SIP and RTP 
• Traffic prioritization according DSCP and 802.1p  

انواع ارتباطات

• Static IP address
• DHCP-client
• PPPoE
• PPTP
• L2TP

عملکرد شبکه

• Bridge and router mode
• NAT
• Static routing 
• VLAN per service (Internet, VoIP, IPTV)
• IGMP
• DHCP, DNS server on LAN 
• Port forwarding
• Firewall
• 3G/4G-router mode
• UPnP

مشخصات مورد پشتیبانی

• 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, Flash event
• 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
• RFC 3611 RTP Control Protocol Extended Reports (RTCP XR)

مدیریت

• WEB (English and Russian versions)
• Telnet
• FTP
• Syslog
• SSH
• TR-069 (recommended to work with Eltex.ACS server)
• DHCP autoprovisioning (periodically and scheduled)
• SNMP (configuration and monitoring)

امنیت

• Username and password verification
• Firewall
• Access rights delimitation admin/user/viewer

پورت USB

• USB-drive connection with FAT/FAT32/EXT2/EXT3/NTFS file systems
• USB 3G/4G modem connection - operating in 3G/4G router mode

ویژگی های فنی

• SDRAM 128 MB
• SPI Flash 8 MB
• OS Linux

مشخصات فیزیکی

• Power adapter 12V DC, 1 A
• Power consumption: no more than 12.5 W
• Operating temperature: from +5 °С to +40 °С
• Operating humidity: 80% max.
• Dimensions (WxDxH): 187х120х32.5 mm, desktop case

Diagnostics

• Debug information output to Syslog/Telnet
• Device status monitoring via Web interface
• Subscriber lines parameters testing