گیت وی هشت پورت گرنداستریم مدل HT881

500 g

گرنداستریم-Grandstream

Telephone Interfaces GXW4104: 4RJ11 Network Interfaces :10M/100M/1000Mbps, dual RJ45 ports

Telephone Interfaces GXW4104: 4RJ11 Network Interfaces :10M/100M/1000Mbps, dual RJ45 ports

Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-/IP Transport RTP/RTCP/IP Signaling SIP (RFC 3261)

DHCP Client/Server Yes, NAT Router or Switched Mode

Voice-over-Packet Capabilities G.168 compiant Echo Cancelation, Dynamic Jitter Buffer, Moderm detection & auto-switch-G.711

Mounting Wall mount and desktop

QoS Diffserve, TOS, 802.1P/Q VLAN tagging

DTMF Method flexible DTMF transmission method, user interface of in-audio, RFC2833, and/or SIP info

DHCP Client/Server Yes, NAT Router or Switched Mode

Dimensions (LxWxH) 230mm x 135mm x 35mm

Operational: 32-104°F or 0-40°C Storage: 14-140°F or -10-60°C Humidity: 10-90% Non-condensing

Media SRTP not available

Power Output: 12VDC Input: 100-240VAC / 50-60Hz

LED indicators Power, Network and Line LEDs

Caller ID Bellcore Type 1&2, ETSI, BT, NTT, and DTMF-based CID

Polarity Reversal/Wink Yes

EMC: EN55022/EN5504 and FCC part 15 Class BS:afety UL

Voice Compression G.711, G.723, G.726 (40/32/24/16), G.729A/B/E, G.728, iLBC

PTSN failover on power failure

Up to 2 distinct SIP server profiles per system and independent SIP account per port

4 or 8 ports -2 10/100 Mbps network ports -Comprehensive codec support, caller ID, flexible dial plans and security protection – Advanced security protection with SRTP – Designed and tested for full interoperability with leading IP-PBXs, soft-switches and SIP-based environments -Failover SIP server feature in case main SIP server goes down

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FXO