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Bộ chuyển đổi ATA 2 cổng Grandstream HT802 v2
Grandstream HT802v2 là bộ chuyển đổi điện thoại analog sang VoIP chất lượng cao cho môi trường văn phòng. Kích thước nhỏ gọn, chất lượng âm thanh, chức năng VoIP tiên tiến, lý tưởng cho các triển khai thoại IP cho doanh nghiệp.
Thông số kỹ thuật
| Model | HT802 v2 |
| Telephone Interfaces | • Two (2) RJ11 FXS ports |
| Network Interfaces | • One (1) 10/100Mbps auto-sensing ethernet ports (RJ45) |
| LED Indicators | • POWER, NET, PHONE1, PHONE2 |
| 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 24 AWG |
| 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), Layer 3 (ToS, DiffServ, MPLS) |
| 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 |
| Management | • Syslog support, SSH, remote management using web browser |
| Universal Power Supply | • Input: 100-240VAC, 50-60Hz • Output: 5.0VDC/1.0A |
| Environmental | • Operational: 32º – 104ºF or 0º – 40ºC • Storage: 14º – 140ºF or -10º – 60ºC • Humidity: 10 – 90% Non-condensing |
| Dimension and Weight | • 100mm x 100mm x 29.5mm, 114g (without package) |
| Compliance | • FCC 15B, AS/NZS CISPR22, AS/NZS60950, EN55022, EN55024, EN60950, EN61000-3-2, EN61000-3-3, UL (Power supply) K.21 |
