IP PBX/pbx/pabx

Hardware specifications of ip pbx:
Memory:
Flash: 1gb
RAM: 128mb
Ports: 2RJ45,1WAN, 1LAN
One USB port
One LED display
Wifi specifications:
Standards supported : 802.11a, 802.11b, 802.11g
Data rates: 1-54mbps  
Encryption: WEP, WPA, WPA2
Reach: 500M
Software specifications:
Sip specifications:      
Protocols: H323, SIP, IAX, IAX2  
Codecs: G711 ulaw, alaw, G729, G723, SPEEX, GSM
PABX features:
Alarm receiver
Append message
Authentication
Automated attendant
Blacklists
Blind transfer
Call detail records
Call forward on busy
Call forward on no answer
Call forward varialbe
Call monitoring
Call parking
Call queing
Call routing (DID&ANI)
Call snooping
Call transfer
Call waiting
Caller ID
Caller ID blocking
Caller ID on Call waiting
Database integration
DUNDI
DO not Disturb
Interactive directory listing
Local and remote agents
Music on hold
Music on Transfer
Predictive dialer
Privacy
Protocol conversion
Remote call pickup
Remote office support
Route by caller id
Supervised transfer
Three way calling
Trunking
Voicemail
Voicemail to email
Webbased management

Networking features:
Client side : DHCP, STATIC, PPP, PPPOE
Server side: DHCP, STATIC  
Firewall: IPTables   
Windows file sharing/networking: Samba    
Support Port forwarding    
Support Url filtering     
Support Remote update via tftp