IP-PBX

Office Communications Server 2007 R2 delivers streamlined communications for your users so they can find and communicate with the right person, right now, from the applications they use most.

Lotus Sametime software offers integrated, enterprise instant messaging, point-to-point video, integration with desktop productivity applications such as Microsoft Office, file transfer, integrated chat histories, and optional integration with supported audio, video, and telephony systems.

Virtual PBX Service For Any Business, provides virtual office connectivity, user friendly Web 2.0 management, free extension to extension calls, free internet to internet calls