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Following RFC-3261 SIP standard. |
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Support password authentication using MD5 digest. |
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Support Inband/ SIP INFO/RFC-2833 for DTMF relay. |
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Support proxy routed mode and direct mode. |
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Dynamic IP support (DHCP and PPPoE) |
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Getting IP from DHCP server using DHCP protocol or through ADSL modem using PPPoE protocol, automatically reconnect when PPPoE lost connection. |
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Passing through NAT devices. |
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Remote software upgrade capability ( via FTP or HTTP-Post ) |
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FTP/ HTTP-Post protocol provide reliable remote upgrade through Internet. |
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Advanced Digital Signal Processing (DSP) technology to ensure superior audio quality |
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Hardware System on a Chip solution with built in DSP processor makes sure the perfect voice quality. |
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Support G.723.1, G.729A/B, G.711 (A-law/U-law) voice codecs |
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Following ITU-T standard to support best compatibility. |
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Phone Book : 50 sets. |
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Speed dial : 10 sets. |
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Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation). |
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Ping function supported |
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Ping other device from ET-747 to make sure the Internet connection is ok. |
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System status displayed on the LCD panel |
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User can easily know if the ET-747 is working normally and monitor the system status (network status, registering status) from the LCD panel display. |
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System status display on the web interface |
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User can easily know whether the ET-747 is registered or not from the web browser. |
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A “PKT Trace” function is supported to display the packets received on the LCD panel to let administrator find the network problem. |
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Provide easy configuration methods |
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Very easy setting by keypads on the phone set. |
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Setting by web browser. |
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Support RFC-3261, TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP, DNS, DHCP, NTP/SNTP, FTP, PPP, PPPoE, 802.1Q/P protocols. |
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Interoperable with most of the existing SIP VoIP devices (IP-phone, gateway, proxy, soft-switch, IP-PBX) |
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The WAN Port automatically works for paralleled Ethernet cable and crossed Ethernet cable. |
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Automatic provisioning supported. |
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VLAN supported. |
Call Features
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Authentication. |
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Blind Transfer. |
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Call Forward on Busy. |
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Call Forward on No Answer. |
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Call History. |
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Call Hold. |
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Caller ID. |
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Consultant Transfer. |
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Do Not Disturb. |
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Unconditional Call Forward. |
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Visual Indicator for Message Waiting. |
Hardware Specification
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PC Port: 1xRJ45 10/100 Base-T Ethernet, line auto-sensing/switching. |
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WAN Port: 1xRJ45 10/100 Base-T Ethernet, line auto-sensing/switching. |
(Option)Power Over Ethernet 802.3af function. |
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LCD display: 2x16 characters |
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Phone Case: 36-button keypad |
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Universal Switching Power Adaptor: Input: 100-240V AC |
Output: +5.4V DC, 0~1.2A |
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Speaker: 8 Ohm/0.2 Watt speaker for speakerphone operation |
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Dimension: 19cm(W)x23cm(D)x9cm(H) |
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Weight: 870 g |
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Operating Temperature: 32 - 104°F (0 – 40°C) |
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Humidity: 10%-95% (non-condensing) |
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EMI Compliance: CE / FCC |
