Enable your employees call each other for absolutely free no matter where they are in the world. Use regular telephones, including wireless handsets or headsets, and don’t pay a penny for long-distance calls!

OfficeSIP Alerter is a simple, easy-to-use and free instant sip messenger. It was not designed for prolonged chat, it is handy when you need to send single message. It is good replacement for old-fashioned Alerter Service.

OfficeSIP Messenger provides enterprises with advanced instant communications for free. Compatible with Office Communications Server 2007, the free softphone delivers reliable performance combined with trouble-free deployment and management.