Searched for: "secure end to end communication over gsm and pstn networks"

About 2 results for "secure end to end communication over gsm and pstn networks"

  • Tom Olzak // February 1, 2009, 8:00 PM PST

    The opportunities and risks of DECT, CAT-iq

    Before you install a wireless monitoring and control system, check to see if it uses DECT/CAT-iq technology. If it does, make sure you're not filling the local 1.9 GHz airwaves wi...

  • Deb Shinder // October 5, 2007, 3:56 AM PST

    High-def VoIP: Do you need it?

    High definition (HD) is the big trend in electronics these days. But when it comes to telephony, what does HD really mean, what's it going to cost, and who really needs it?