Unirorn 4001

Unirorn 4001

Features:

Unicorn4001 Features^$Key Features

• Support SIP 2.0, TCP/UDP/IP, RTP/RTCP, HTTP, ARP/RARP,

ICMP, DNS, DHCP, NTP, TFTP, PPPoE protocols

• Support NAT traversal via STUN & symmetric RTP

• Interoperable with various 3rd party SIP end user device,

Proxy/Registrar/Server, and gateway products

• Advanced Digital Signal Processing (DSP) to ensure superb hifidelity

audio quality

• Advanced and patent pending adaptive jitter buffer control, packet delay & loss concealment technology

• Support popular vocoders including G.723.1 (5.3K/6.3K), G.729A/B, G.711 (a-law and u-law), G.726,

G.728, wide-band G.722 and iLBC. Dynamic negotiation of codec and voice payload length

• Support standard voice features such as Caller ID Display or Block, Call Waiting, Hold, Transfer,

Forward, FLASH, in-band and out-of-band DTMF (RFC2833), Dial Plans, off-hook auto dial, early

dial, click-to-dial

• Support 3-way conferencing (pending), full duplex hands-free speakerphone, redial, call log, volume

control, voice mail with indicator

• Support Silence Suppression, VAD (Voice Activity Detection), CNG (Comfort Noise Generation), Line

Echo Cancellation (G.168), and AGC (Automatic Gain Control)

• Support DIGEST authentication and encryption using MD5 and MD5-sess

• Provide easy configuration thru manual operation (phone keypad and Web interface) or personalized

automated provisioning via central configuration file for mass deployment.

• Support for Layer 2 (802.1Q VLAN, 802.1p) and Layer 3 QoS (ToS, DiffServ, MPLS)

• NAT-friendly remote software upgrade capability (via tftp and http) even from behind firewalls/NATs.

• Downloadable music ringing tones

• Support for fail-over SIP server and DNS server^#

Main Product:
voip gateway SIP IPPBX

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