Is 4G the End of VoIP? Or Is It Just a New Beginning?

Voice over IP technology has been used both in the consumer market and, to greater effect, in the business marketplace for years.  Now that mobile users are starting to see the same benefit in their communications protocols, namely with the advent of 4G LTE technology and WiMAX connections, businesses are starting to integrate mobile phones into their in-house data networks.  Of course, this has its own set of barriers to overcome, but this is beginning to be an attractive alternative to the higher price of pushing data through traditional cellular plans.  And the rapid advancement of 4G networks has resulted in the advent of VoIP options that can effortlessly retain compliance with older devices.


4G information networks promise to make a seismic shift in the way mobile networks function, and indeed in the entire mobile VoIP market.  This is clear when one considers that 4G is not merely an incremental step up from 3G technology, as the name would suggest.  Rather, 4G is an entirely different system.  For one, there are no bandwidth restrictions with 4G networks, such as those that limited the growth potential of previous IP networks, especially in rural or remote areas.  Combining 4G and VoIP technologies – transforming voice into data for transmission, and back again – will transform accessibility to the Internet, making it available anywhere 4G is.

As of this writing, the prevailing standard in 4G communications is Long Term Evolution (LTE) or 3rd Generation Partnership Project Long Term Growth (3GPP LTG).  Within the mobile field, something that makes LTE networks unique is that they are entirely packet switched.  This means less multi-user and inter-cell disturbances, and also greater throughput.  Ultimately, current voice and data plans offered by mobile phone operators might become obsolete.  And as VoIP becomes more and more mainstream, continuing advancements in Web technology will continue to shape the way the industry grows.

Mobile VoIP

When considering mobile solutions, VoIP becomes a different matter.  In order to conduct a VoIP conversation, a wireless data connection has to be reliable enough to transmit data (or voice, transformed into data) all of the time.  Something that works very well is to use a mobile VoIP app over a WiFi network – but then the person on the other end of the call is limited to using the same application.  And using a WiFi network has the other limitations of that sort of network, as well – it’s not the same thing as using a WiMAX network, or 4G/LTE.  This is why 4G will come to lead the VoIP revolution, if another standard does not rise to challenge it.  The usage of VoIP and the apps needed to make use of the bandwidth are normally free.  In other words, people are not getting paid for use of these services.  One has to wonder if cellular companies will continue to allow this to happen – or if they will evolve with the times, instead.

Something to note is that WiMAX works very similarly to the WiFi one might have in their house, with the most notable difference being the ranges involved.  The normal, unobstructed range of WiFi is 150 to 200 feet, whereas WiMAX range is measured in miles or kilometers.  LTE is useful in another way, as well, because it enables packet transmissions, which in turn enables mobile broadband.  Again, this is far more advanced than the older cellular systems.

So What Happens to VoIP?

For mobile VoIP calls, WiMAX and LTE will certainly function well enough, although it remains to be seen if the price per call in either format will be comparable to the existing cost of wireless calls.  Each of these fourth generation protocols are IP based, making them reasonable transport solutions for Mobile VoIP.  So will that make VoIP go away?  Certainly not.  It might be referred to by a variety of different names, such as VoLTE, VoWiMAX, or Vo4G, but bet on the simplest one, because no one likes a cumbersome name.

Can you say 5G?

It’ll still be VoIP, regardless.

Author Bio:

Michelle Patterson has had a long stint with telecom companies, and spends her time now as a consultant and a regular blogger. She likes to share her knowledge so that companies experimenting with these technologies could use them successfully.