What is C4 IP?
C4 IP is a hosted VoIP and hosted unified communications solution using a secure, private IP network. Quality of Service is managed from the desktop phone and across the network 24/7 to ensure the highest call quality. C4 IP includes all of the Centrex features you’re accustomed to—like intercom, call transfer, hold, account codes—as well as unified messaging, Microsoft Outlook integration and advanced multimedia features such as video calling, file sharing, conferencing, collaboration, real-time presence and instant messaging.
