Depaepe Telecom HD 2000 series, User Manual, Page: 5 / 52

HD2000 IP User Manual
Copyright © 2015
SAS HENRI DEPAEPE
Page 5 of 52
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/B, G.726-32,
G.722, GSM_FR, iLBC.

Support standard encryption and authentication (DIGEST using MD5, MD5-sess), AES ?

Support for Layer 2 QoS (802.1Q/VLAN Tag, 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, HTTP, FTP, HTTPS.

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)