Configuration by Web
Built-in SIP/IAX Server
Static/DHCP/PPPoE network access
Codec: G. 711-Ulaw, G. 711-Alaw, G. 726, G. 729, GSM, SPEEX
SIP/IAX Trunk(use with VoIP Trunk operator)
Zap Trunk(Use with PSTN)
SIP/IAX Extensions(connect with IP Phone)
Zap Extensions(connect with Analog Phone)
Voice Mail Server

Flexible Dial Plan
Call Conference
IVR Server
Music On Hold
Call Logs
Support IP Phone with Key function
FAX T. 38

Other basic function:
Three way calling
Call Forward(on Busy or on Unanswered Call or onUnregistered Extension)
Call Hold
Call Transfer
Call Waiting
Caller ID