proliferation of LTE networks is making life pretty sweet – and fast – for
mobile users right now. Consumers are spending more time watching videos from
their smartphones and tablets, all the while never knowing the complex
signaling protocols that are giving them a seamless experience, regardless of
whether they’re roaming in and out of 3G and 4G territory. LTE’s signaling
protocol, Diameter, makes the interactions with other networks possible, and it
might be the most important enabler mobile consumers never heard of.
say you walk into a Starbucks. There’s a huge line, and your wait for that
Pumpkin Spice Latte is looking pretty long. You switch to WiFi so you can tap
into the coffee shop’s network to catch up on some funny cat videos on YouTube
or watch the end of that “Orange is the New Black” episode you started on
Netflix. A lot has to happen behind the scenes for that switch to occur, and it
happens in less time than it takes the barista to ring up your order.
signaling protocol for WiFi networks is Radius. To switch from Diameter to
Radius, there needs to be an
interworking function that handles user activity, billing and the handoff. The
same kind of scenario has to happen when users roam from LTE to 3G, which is
still a growing network with which operators will have to work for a long, long
time. The switch from a Diameter-based network to an SS7-based network needs to
occur seamlessly. This is where a Diameter interworking function (IWF) comes in to make sure
this occurs without messing up the user experience.
is also bringing HD Voice more to the fore. This is the voice codec that makes
it sound like you are in the same room with the person to whom you’re speaking.
Believe me, I’ve talked using these codecs and the quality is impressive.
You’ll need an HD Voice-capable phone (you may even have one now and not know
it) but once they are standard, you’ll hear the difference.
is also likely to contribute to the success of WebRTC. Because LTE is a mobile
on-ramp to the Internet, people will be using their mobile devices to access
the Internet more and more. And when they do that, they only need to click on a
URL to make a call, and this will certainly contribute to WebRTC voice and
video calls taking off.
brings up another important behind-the-scenes point. Just like Diameter
interworking for signaling interactions, there will need to be media
transcoding for media interactions. If you make an HD Voice or WebRTC phone
call and it goes to a non-LTE network or WebRTC endpoint, then you’ll need media
transcoding to make sure the phone or video call goes through.
users don’t need to know this, of course. They only need to know that their
calls, Internet usage and video downloads will work, regardless of where they
are or how they move between networks. The burden is on their service providers
to make sure there aren’t any glitches along the way.
09-24-2013 8:14 AM
Dialogic, the Network Fuel™ company, inspires the world’s leading service providers and application developers to elevate the performance of media-rich communications across the most advanced networks. We boost the reliability of any-to-any network connections, supercharge the impact of applications and amplify the capacity of congested networks. Forty-eight of the world’s top 50 mobile operators and nearly 3,000 application developers rely on Dialogic to redefine the possible and exceed user expectations.