BỘ CHUYỂN ĐỔI FXS GRANDSTREAM GXW4248

FXS Ports

48 FXS

Ethernet Ports

1 RJ45 10/100Mbps RJ45

PSTN Line Port

2 50-pin Telco connectors

LED indicators

LAN Link, LAN Activity, Connection Per Telephone Port

LCD display

Backlit 128 x 32 graphic LCD display with support for multiple languages

Voice Compression

G.711, G.723.1, G.726 , G.729 A/B, iLBC

Fax over IP

T.38 compliant Group 3 Fax Relay up to 14.4kbps and auto-switch to G.711 for Fax pass-through, Fax data pump V.17, V21, V.27ter, V.29 for T.38 fax relay

Telephony Feature

Caller ID display or block, call waiting, blind or attended call 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

QoS

DiffServ, TOS, 802.1P/Q VLAN tagging

Network Protocols

TCP/ UDP, RTP/ RTCP, HTTP/ HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN, LLDP (pending)

DTMF Method

Flexible DTMF transmission methods including In-audio, RFC2833, and/or SIP INFO

Signaling

SIP (RFC 2361) over UDP/ TCP/ TLS

SIP Server Profiles & Accounts Per System

4 distinct SIP server profile per system and indepentent SIP account per telephone port

Security

Support for SRTP, TLS/ SIPS, HTTPS, 802.1x

Management

Syslog, HTTPS, Web brower, voice prompt, TR-069

Power Input

Input: 100 ~ 240VAC, 50 ~ 60Hz

Output: 12 VDC, 5A

Compliance

FCC, CE

Dimension

440 x 255 x 44 mm

Weight

3.21 kg