Performance and features
    Support SIP,IAX2 protocol
    DHCP support for LAN or Cable modem
    Audio codec G.711,G.729,GSM,iLBC
    Blue back light
    CALL WAIT,HOLD,TRANSFER supported
    Set by HTTP web browser (IE6.0) or Telnet
    Upgrade by FTP,TFTP or HTTP
    VAD(Voice active detect)
    CNG (Comfort noise generation)
    G.168/165 compliant 16ms echo cancellation
    Dynamic voice jitter buffer
    Network interface:1/2 RJ-45 Ethernet connectors
• Main technical index
    Integrated MCU, the instruction set is compatible with Z80
    MCU run at 24.576MHz(typical), F/W can program from DC up to 60MHz
    Internal 116 Kbytes RAM, no external SDRAM needed for most application
    Up to 4 chip selection for external SRAM, EEPROM or FLASH, each can support 2MB at maximum
    24 bits DSP Core
    2181-instruction-set compatible DSP co-processor
    DSP Speed up to 72MIPS
    Support 24.576MHz OSC with on-chip PLL for DSP
    Up to 16 general purpose I/O pins
    High quality 18bits CODEC on chip.
    One UART port
    Support real time clock
    Keypad support (up to 12 keys directly)
    Maximum voice output: 11mW@16 ohm
    Internal DC/DC converter to produce CORE voltage, eliminate external LDO