Mobile Voice and Data Availability: it’s an internet security issue

Verisign Masters of Internet Infrastructure

The other day I was at my friend’s house in Washington, Virginia, (just beyond the middle of nowhere) where mobile phone service is nonexistent. Up until recently the only way to use my Verizon mobile at his house was to use WiFi for voice (via softphone) and data. On this recent visit, my friend proudly pulled out his Sprint phone to show me his five-bar service. He had installed a femtocell. It’s a very cool little device with the same end-result as my using voice over WiFi: calls and data from my mobile device go out over the Internet. As more and more mobile voice and data is transported over the Internet we need better protection and higher availability services. This is particularly true as enterprises shift mobile traffic to the Internet. We know many employees would rather use their mobile phone during the day instead of having to use a desk phone, and IT is trying to figure this out. Many companies have an interest in supporting one phone per person instead of two or more. We see an increasing trend toward fixed-mobile convergence (FMC) applications from specialized technology vendors, IP telephony vendors and service providers; FMC integrates mobile devices with IP telephony systems. We’re also starting to see enterprise femtocell interest rising. Combine these things with the steady rise in Internet-only branches, and you wind up with mission critical mobile voice and data traffic flowing over the Internet. The bottom line? Securing the Internet connection—ensuring availability both physically (redundancy) and logically (DoS defense)—becomes a critical part of maintaining company voice and data communications.

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