Detailed Product Description

Feature: 
--support Three Sip Servers Running At The Same Time. 
--call Forward, Call Transfer, 3-way Conference Calls
--nat Support, Simple Firewall
--support Pppoe,  (used For Adsl, Cable Modem Connecting) 
--adjustable Audio Frames, Adjustable Payload Size
--dynamic Programmable Jitter Buffer. Echo Cancellation
--vad-voice Activity Detection. Cng-Comfort Noise Generation
--qos Set Support. Caller Id Generation
--plug And Play Technology, Support Fax. 
--web Interface, Console And Phone
--telephone Key Pad Configuration Through Ivr
--invert Signaling Detect And Generation
Master, slave Server Support. 
--cpu: 32bit 125mhz Flash: 16m ram: 16m