Free the 3rd generation pbx system downloads, showing 1 - 7 of about 7

Billion PBX - new generation phone system working in IP-networks using SIP protocol. Billion PBX provides not only voice calls but also a whole range of additional features like call forwarding, voicemail, callback and many others.

BizPBX is the world first communication system that realizes the free connection among three different networks Skype, PSTN and SIP.

PrettyMay Call Center for Skype (PMCCS) is a 100% software-based Skype PBX that replaces traditional proprietary hardware PBX / PABX. It allows SMBs to quickly and affordably implement a Skype PBX (aka PABX) system with auto-attendant...

PBX Call Tarifficator Pro is a call accounting and billing system, which helps you to manage all the telephone traffic via your office switching system.
Free demo-version.

Utility to synchronize internal clock of office PBX. PBX clock is synchronized with the clock of the computer - it allows to simplify the comparison of PBX logs and data of the communication operator.

Axon is a virtual IP PBx for Windows PCs featuring a one click installation setup and a web management console that makes configuring your new PBx easy. Axon offers all the normal features of a traditional PBX. Set it up in your office or home.

3CX VOIP Phone System FREE edition is a SIP-based IP PBX developed for Windows. Easy to install and configure, it eliminates phone wiring and allows hot desking. Lowers call costs via VoIP providers & eliminates vendor lockin. Download FREE edition!

BizPBX is a Free Phone System (PBX) with Skype Trunk and Call Messenger, BizPBX is a Unified Communication PBX with Directory(online status), Conference, Call Record, Voicemail, CRM, Soft Fax, SMS, Internal EMail & Instant Messenger.

For Businesses that already have office phone systemsFor Small Businesses that needs a Skype PBX phone system

Programming software for Panasonic KX-TD1232/816/308 PBX. Easy understandable interface and built-in installer's help-file let you to adjust settings of your PBX even without Installation Manual.