1. System Features
 Base on Asterisk
 Configuration by Soft Asisstant
 Built-in SIP/IAX Server
 SIP/IAX Trunk(use with voip operator)
 Zap Trunk(use with PSTN)
 SIP/IAX Extensions(connect with IP phone)
 Zap Extensions(connect with regular phone)
 Voice Mail Server
 Flexible Dial Plan
 IVR Server
 Power failure transfer
 Support IP phone with Key function
 Three way calling
 Music on hold
 Call Pickup
 Call Hold
 Call Transfer
 Call Waiting
 Caller ID
1.2 Specifications
1)Interface
 1 X LAN port (RJ45)
 12 X FXS/FXO Analog ports (RJ11)
 1 X Console port (RJ45)
 1 X Power port
2)Hardware
        500MHz CPU (ADI Blackfin )
        256M Onboard Nand Flash
        2M Onboard Nor Flash
        64M Onboard RAM
3) Analog Interface
 Impedance 600 oms
 frequency response: 300Hz ~ 3400Hz
 digital voice: A_Law PCM
 DTMF code: 0 ~ 9 ,*,#, A, B, C, D
 Caller ID  FSK/DTMF configurable
4)environmental requirements:
 temperature: 0 C -50 C
 humidity :20-80% relative humidity, non-condensing
 Power: AC220V
5)   Dimensions: 49 X 7 X 28 cm
6)   Weight: 4.2 4.5 kg