Specifications

Encryption method:

• IPSec 3DES encryption.
• Private and public keys are generated per session and subsequently destroyed (unrecoverable) upon termination of link.
• Calling party identity verification procedures as protection form “man in the middle” attack and comprehensive procedures to ensure keys or foreign data have not been injected or substituted by a third party.

Standards

• IETF SIP V2 (RFC3261) standards (or MGCP optional)

· Call ID, Hold, Transfer, Forward, Wait, 3-way Conference, MWI, Text Message, and more

· STUN NAT, PPPoE, DHCP, TFTP, Telnet, DNS, SNTP, HTTP, RTP, RTCP,SNMP V2

Voice Handling

• Supports codec G.711 a/µ law, G.729, G.723.1
• Supports VAD, CNG, AGC and Acoustic Echo Cancellation
• Jitter buffering and packet loss concealment
• Enhanced voice quality for handset, headset and hands-free

Dialing methods

• On-hook dialing & near Full-duplex speakerphone
• Redial, Mute, Call log, Phone book, Web dial, and speed dial
• Multiple Call/Line appearance

Configuration and Management

• Programmable call/phone features.
• Auto-provisioning, security, encryption support
• Remote and local configuration & management
• Engineering trace log

Display

• 128 x 64 graphic LCD display
• 8 key pad LEDs & 2 Network activity LEDs

Keys

• 32keys support
• 4 Context-sensitive soft-keys & navigator keys
• Speaker, Mute, Headset, Hold, Transfer, Conference, Message, Phonebook, Redial
• 1,2,3,4 keys for programmable features or speed dial
• Optional IP-EDM supported for more speed dial/ abbreviated codes/ features

I/O Ports

• Dual 10/100 BaseT RJ-45 ports with QoS /VLAN support
• Dual Headset ports with RJ-9 connector and 2.5mm Jack
• Embedded RS-232 service port for engineering service

Power Supply

• PoE 802.3af built-in for Crystal CrypToneB model only
• 5V DC/1A switching power adapter support