Specification :

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
Operating Voltage: IO: 3.3v, Core: 1.8v
Low Power consumption: