Boston―As vendors at last week's Voice on the Net conference pushed new applications for making IP telephony ubiquitous and more multimedia-friendly attendees cautioned that plenty of basic issues still need to be resolved. Those issuing warnings at the convergence industry's annual gathering weren't discounting the notion that Session Initiation Protocol (SIP)-based presence applications hold promise for connecting workers anywhere via video, voice and instant mes-saging. They are more concerned about how to secure IP PBXs from viruses, the shortage of enterprise voice-over-IP (VoIP) management tools and the complexities of rolling out converged applications beyond simple dial tone and calling features.
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