Key Features - Depaepe Telecom HD2000 User Manual

3. Key Features

- Support SIP 2.0 (RFC 3261), TCP/UDP/IP, RTP/RTCP, HTTP, ICMP, ARP/RARP, DNS,
DHCP, NTP, PPPoE, STUN, UPNP,TFTP, etc.
- Powerful Digital Signal Processing (DSP) technology to ensure superior audio quality
- Support various codecs including G.711 (PCM a-law and u-law), G.723.1 , G.729A, G.726.
- Support standard encryption and authentication (DIGEST using MD5, MD5-sess)
- Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)
- Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort
Noise Generation), Acoustic Echo Cancellation (AEC) with Acoustic Gain Control(AGC) for
speakerphone mode.
- Support automated provisioning for mass deployment ,RTP and TLS (pending)for security
protection
- Support automated NAT traversal without manual manipulation of firewall/NAT
- Support Hold, Transfer, Forward, 3-way Conference, in-band and out-of-band DTMF, Call
Waiting, Call Log, Off-hook Auto Dial, Auto Answer, Downloadable Ringtones, SMS,Direct IP
Call, Intercom, Paging, Pick up.
- Support syslog, full duplex hands-free speakerphone with advanced acoustic echo cancellation,
redial, volume control, voice mail with indicator, downloadable ring tones.
- Provide easy configuration through manual operation (phone keypad), Web
interface or automated centralized configuration file via TFTP or HTTP
- Support 6 dedicated function keys: Mute, 3 level volume key, Flash (Hold), Message,
Conference, Redial.
- Support 3 levels ringer volume ( high/middle/off for HD2000IP with keypad, high/middle/low
for HD2000IP urgence)
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