VoIP-шлюз Grandstream GXW4248

Телефонные интерфейсы 48 x RJ11 FXS портов и 2 50 пиновых Telco коннектора

Сетевые интерфейсы 1 x 10M/100M/1000Mbps auto-sensing RJ45 port

Голосовые кодеки G.711, G. 723, G.726 (40/32/24/16), G.729A/B/E, iLBC

LED индикаторы LAN Link, LAN Activity, Per Telephone port

LCD Дисплей Backlit 128×32 grpahic 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

Поддержка факса черех IP T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax Pass-through, Fax Datapump V.17, V.21, V27ter, V29 for T.38 fax relay

Телефонные функции 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 (NEON LED) support and stutter tone, auto dial, flexible dial plan

QoS DiffServ, TOS, 802.1P/Q VLAN tagging

Сетевые протоколы 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

Сигнализация SIP (RFC 3261) over UDP/TCP/TLS

SIP профили и аккаунты 2/3/4 distinct SIP server profiles per system and independent SIP account per telephone port

Provisioning  TFTP, HTTP, HTTPS, TR069