Bộ chuyển đổi ATA 8 cổng Grandstream HT818 v2
Grandstream HT818v2 là một gateway VoIP có 8 cổng FXS với tính năng Router tích hợp. Được thiết kế như một bộ chuyển đổi analog sang VoIP mạnh mẽ. Gateway HT818v2 mang lại chất lượng âm thanh và hiệu suất vượt trội cho doanh nghiệp.
Thông số kỹ thuật
Model | HT818 v2 |
Telephone Interfaces | • Eight (8) RJ11 FXS ports; can be expanded by peering with an FXS gateway |
Network Interface | • Two (2) 10/100/1000Mbps RJ45 ports |
LED Indicators | • POWER, NET1, NET2, PHONE1, PHONE2, PHONE3, PHONE4, PHONE5, PHONE6, PHONE7, PHONE8 |
Factory Reset Button | • Yes |
Telephony Features | • Caller ID display or block, call waiting, flash, blind or attended transfer, forward, hold, do not disturb, 3-way conference |
Voice Codecs | • G.711 with Annex I (PLC) and Annex II (VAD/CNG), G.722, G.723.1, G.729A/B, G.726-32, iLBC, OPUS, dynamic jitter buffer, advanced line echo cancellation |
Fax over IP | • T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through |
Short/Long Haul Ring Load | • 2 REN, up to 1km on 24AWG line |
Caller ID | • Bellcore Type 1 & 2, ETSI, BT, NTT, and DTMF-based CID |
Dial Methods | • DTMF, Pulse |
Disconnect Methods | • Busy Tone, Polarity Reversal/Wink, Loop Current |
Network Protocols | • TCP/IP/UDP, RTP/RTCP (RFC1889, 1890), HTTP/HTTPS, ARP/RARP, ICMP, DNS, DHCP, NTP, TFTP, SSH, Telnet, STUN (RFC3489, 5389), SIP (RFC3261), SIP over TCP/TLS, SRTP, SNMP, TR-069, IMS/3GPP, IPoE |
QoS | • Layer 2 (802.1Q VLAN, SIP/RTP 802.1p) and Layer 3 (ToS, Diffserv, MPLS), Traffic Shaping |
DTMF Method | • In-audio, RFC2833 and/or SIP INFO |
Provisioning and Control | • HTTP, HTTPS, SSH, TFTP, TR-069 , secure and automated provisioning using AES encryption, syslog |
Media | • SRTP |
Control | • TLS/SIPS/HTTPS, SDP(RFC 2327), Refer (RFC 3515), Offer/Answer (RFC3265) SIP V2.0 (RFC 3261, 3262, 3264), RFC3261 ETC (3GPP TS 24.629, RFC 3515, RFC 3891, RFC 3892) SIP Session Timer (RFC 4028) |
Management | • Syslog support, SSH, remote management using web browser |
Universal Power Supply | • Input: 100-240VAC, 50-60Hz • Output: 12V/1.5A |
Environmental | • Operational: 32º – 123ºF or 0º – 50ºC • Storage: 14º – 140ºF or -10º – 60ºC • Humidity: 10 – 90% Non-condensing |
Dimension and Weight | • (L)180mm*(W)120mm*(H)36mm • 356g |
Compliance | • FCC/CE/RCM |