Riches features and cost effective! KE2100, Support all Asterisk Feature, and support most of the softswitches! -- in our promotion time, whole sale price for 100~1000 pcs: USD 40

Competitive Features:
SIP protocol RFC3261 RFC2543
2*16 Character LCD
Ethernet ports: TWO*10/100 Base-T Ethernet ports, Bridge/Router function
support VPN, DDNS, VLAN, syslog and Qos

Auto provisioning, auto new version check, auto upgrade

Functions: Speaker, Redial, Dial plan, Mute, Speed dial, Volume adjust, Call duration display, Call history list: Missed, Received and Dialed, Phonebook; Ringer selection, alarm, hotline
SIP features: Call hold/Retrieve, Call waiting, Call transfer,3-way calling, MWI, Do Not Disturb, Call forwarding: Busy, No answer, Unconditional