A University of Miami instructor hurriedly checks his voice mail using a laptop to access his e-mail in-box hosted on the school’s Web site. Miles away, the “message waiting” light on his desktop ...

Whether you are working with Avaya, Cisco, Microsoft, or BroadSoft, you will encounter proxies, registrars, and back-to-back user agents. Enterprise Connect is a just a month away, and I am in the ...

Today, we’d like to talk about how Session Initiation Protocol can bring the call center a greater variety of ways to communicate. SIP, as readers may recall, has three important advantages over H.323 ...

The Session Initiation Protocol (SIP) may not be a familiar technology term to many corporate users. But that might change now that Microsoft Corp. has built support for the lightweight protocol into ...

Session Initiation Protocol is used widely for the setup, teardown and management of VoIP calls. Much of its functionality is related to the setup of calls, as its name implies. Part of this setup ...