Proposed Next-Gen Networks' VoIP Support has Limits

Proposed next-generation networks, superb as they may be in so many ways, still do have boundaries in their ability to support VoIP over their data-centric IP networks.

Even though data use is increasing, and data traffic is beginning to crush the carriers’ networks, voice will persist to be the killer app. This signifies that what everybody's going to want are systems that allow high-quality voice experiences.

Recent numbers we've seen floating past the office window here say that voice revenues will still represent almost 70 % of overall mobile revenues by 2014. So it's an concern that needs attention.

In a present interview TMC's (News–Alert) CEO Rich Tehrani did with Payam Maveddat (News-Alert),vice president, product management, Mavenir Systems, Tehrani said, "We hear more and more about high-definition voice features in IP communications products and services. What is going to force wideband audio and HD VoIP into the mainstream market? How long will it take?"

Maaveddat replied that from the wireless angle, "wideband codecs will become prominent primarily in order to get the voice quality to a advanced level as mobile devices become more widely use for all voice applications such as audio conferencing. The challenge stays in radio access as how fast the carriers will incorporate these codecs in the core of their network and whether this transition is economical or not. It will occur much sooner in the fixed VoIP application. It will be at least 3 to 5 more years."

And industry observer Stacey Higginbotham also recently wrote that "Voice over Internet Protocol penetration among U.S. businesses will increase rapidly over the subsequent years, reaching 79 percent by 2013, compared to 42 percent at the cease of 2009, according to research out today from analyst firmIn-Stat ( News-Alert). At this point I surprise what market demographic represents the last stand for legacy circuit switched voice. Will it be consumer landlines or will it be mobile voice over 3G networks?"
It's an open end question. Higginbotham notes that ‘current telephone networks are steadily being phased out as the world moves to IP communications. At present in the U.S. only 78 % of consumer homes have a landline and only 22 percent rely on them exclusively.’

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