Features

VoIP
- SIP (RFC3261)
- Supports 10 Upper SIP Trunk  Registration

Phone Features
- 12 Busy Lamp Field Keys
- Programmable keys with Dual LED Indication
- Voice Mail with LED Indicator
- 3 Way Conferencing
- Call hold / Transfer / Forward / Call Waiting
   DND / Redial / Intercom (if supported by IP PBX) / Redial
- Dialing Plan
- Phone Book
- Speed Dial
- Call History  Incoming/Outgoing/Missed Calls
- 3 Uploadable Wave Ringtones
- Calendar
- Alarm 24hours, Date. Month, Year

Provisioning Server
- Download Provisioning configuration from upper server

Specification

  Display           
        - Graphic LCD (132*64) mono

  Network    
        - Dual Ethernet Ports (WAN / LAN)        
        - Power Over Ethernet (IEEE 802.3af) (Only in VT-202 model)

  Power Supply   
        - Output 6~12V DC / Input 100-240 Volt Adapter          
          *It supports both POE & DC adapter          

  Keys   
         - 12 BLF”(Busy Lamp Field) Keys
         - Line 1 ~ 4 (Dual LED) 
         - Voice message hotkey / Indicator (LED)
         - Volume control key 
         - 4 ways navigation keys with Enter Key 
         - 4 Soft Keys          
         - Mute (LED) 
         - Hold 
         - Redial 
         - Handset 
         - Speaker 

 Codec        
        - G.711 (a-law and u-law)         
        - G.722
        - G.723.1
        - G.729a 

  Network  
        - PPPoE/ Static/ DHCP Client    
        - Two integrated 10/100 Ethernet switch ports
        - HTTP/DHCP/NAT Server
        - VLAN IEEE 802.1 p/q
        - QoS / ToS
        - Bridge

  VoIP Capability
        - SIP v2 (RFC 3261)
        - DTMF (In-Brand DTMF / Out-of-Band DTMF (RFC 2833) / SIP Info)  

  Voice Quality    
        - VAD: Voice activity detection 
        - CNG: Comfortable noise generator 
        - ACE: Acoustic echo canceller
        - G.165: Line echo canceller (LEC) 
        - G.168-2002: full duplex echo canceller (EC)  
        - Jitter Buffer 
        - Fully HD (High Definition) wideband voice quality        
        - Full duplex speaker phone        

  Phone Functions
        - Build-in HTTP server for Web configuration & MMI menu configuration 
        - External Headset  
        - Wall mountable 
        - RoHS
        - FCC & CE compliant