4distinct SIP server profiles per system and independent SIP account per telephone port

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

Fax over IP T.38 compliant Group 3 Fax Relay up to 14.4kpbs and auto-switch to G.711 for Fax Pass-through, Fax data pump V.17, V.21, V.27ter, V.29 for T.38 fax relay/

QoS DiffServ, TOS, 802.1P/Q VLAN tagging

Voice Compression G.711, G.723.1, G.76 (40/32/24/16), G.729 A/B, iLBC

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

Network Protocols TCP/UDP, RTP/RTCP, HTTP/HTTPS, ARP, ICMP, DNS, DHCP, NTP, TFTP, TELNET, PPPoE, STUN,LLDP

Telephone Interfaces GXW4216/4224/4232: 16/24/32 x RJ11 & 1/1/2 50-pin Telco connectors

LED Indicators Power, LAN Link/Activity, Hard Drive Activity

Environmental Operating: 0 °C ~ 40C; Storage: -20°C ~ 60°C; Humidity: 10% ~90% (non-condensing)

Voice-over-Packet Capabilities Window based carrier grade line echo cancellation, dynamic jitter buffer, modern detection &

"FCC: Part 15 (CFR 47) Class B -CE: EN55022 Class B, EN55024, EN61000-3-2, EN16000-3-3, EN60950-1, RoHSC-TICK; AS/NZS CISPR 22 Class B, AS/NZS CISPR 24, AN/NZS 60950 ITU-T K.21 (Basic Test Level); UL 60950 (power adapter)"

Provisioning TFTP, HTTP, HTTTPS, TR069

Universal Power Supply GXW4232/4224/4216: Output: 12VDC, 5A; Input: 100 ~ 240VAC, 50 ~ 60HzGXW4248: Output: 24VDC, 6.25A; Inpu: 100 ~ 240VAC, 50~ 60Hz

Mounting Desktop and rack mount with front brackets

گرنداستریم-Grandstream