Asterisk - the Open Source PBX!

Asterisk - the Open Source PBX!

Easily build your own multiprotocol PBX on Linux!
Asterisk is a complete PBX in software. It runs on Linux, BSD and MacOSX and provides all of the features you would expect from a PBX and more. Asterisk does voice over IP in many protocols, and can interoperate with almost all standards-based telephony equipment using relatively inexpensive hardware.
Asterisk provides Voicemail services with Directory, Call Conferencing, Interactive Voice Response and Call Queuing. It has support for three-way calling, caller ID services, ADSI, SIP and H.323 (as both client and gateway). Check the Features section for a more complete list.
Asterisk needs no additional hardware for Voice over IP. For interconnection with digital and analog telephony equipment, Asterisk supports a number of hardware devices, most notably all of the hardware manufactured by Asterisk's sponsors, Digium. Digium has single and quad span T1 and E1 interfaces for interconnection to PRI lines and channel banks as well as a single port FXO card and a one to four-port modular FXS and FXO card.

Foxit PDF Reader

Foxit Reader is small (the download size less than 1MB), so you can download it quickly. It doesn't need any lengthy installation, so you can start to run it as soon as you can download it.
And it starts up immediately, so you don't need to wait the annoying 'Welcome' screen to disappear.
Foxit Reader is extremely easy to use, just double click it to start and then click open button to open your PDF document. If you want to print, click on 'Print' button. If you want to setup the page layout for printing, select 'Print Setup' from 'File' menu"

How to perfect your pictures

How to perfect your pictures