Toàn quốc Cổng giao tiếp VOIP-FXS Grandstream GXW4248

Cổng giao tiếp VOIP-FXS Grandstream GXW4248

– 48 cổng FXS

– 1 cổng 10/100 Mbps Ethernet RJ45

– Hỗ trợ nhiều SIP account (chọn 3 nhà cung cấp dịch vụ khác nhau)

– Hỗ trợ triệt tiếng vọng (EC)

– Hỗ trợ điện thoại Analog và Analog Trunk

– Hỗ trợ Fax

– Phát hiện kích hoạt bằng thoại

– Cân chỉnh nhiễu

Đặc tính kỹ thuật VOIP-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

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