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GRANDSTREAM GXW4248 analoginis 48xFXS portų sietuvas

Price is without VAT,installation and delivery costs

Tai analoginis 48 linijų SIP sietuvas

Price: 947,90 €
Product Description

Pagrindinės savybės:

  • Telephone Interface - 2 x 50-pin Telco connector
  • Network Interface - 1 x 10/100/1000 Mbps auto-sensing RJ45 port
  • Audio Codecs - G.711, G.723, G.726, G.729A/B/E, iLBC
  • LED Indicators - LAN link, LAN activity, per telephone port
  • LCD Display - Backlit 128x32 graphic LCD display with support for multiple languages
  • Voice-over-Pack Capabilities - G.168 carrier grade line echo cancellation, dynamic jitter buffer, modem detection & auto-switch to G.711
  • Voice Compression - G.711, G.723, G.726, G.729 A/B, iLBC
  • Fax Over IP - T.38 compliant Group 3 Fax Relay up to 14.4 kbps and auto switch to G.711 for fax pass-through. Fax Datapump V.17, V.21, V27ter, V29 for T.38 fax relay
  • Telephony Features - Caller ID display or block, call waiting, blind or attended transfer, call forward, do not disturb, 3-way conference, last call return, paging, message waiting indicator LED support and stutter tone, auto dial, flexible dial plan
  • QoS - DiffServ, TOS, 802.1P/Q VLAN tagging
  • Network Protocols - TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, PPPoE, STUN, LLDP
  • DTMF Method - Flexible DTMF transmission methods including In-audio, RFC2833, and/or SIP INFO
  • Singaling - SIP (RFC 3261) over UDP/TCP/TLS
  • SIP Server Profiles & Accounts Per System - 4 distinct SIP server profiles per system and independent SIP account per telephone port
  • Provisioning - TFTP, HTTP, HTTPS, TR069
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