VoLTE, Coverage & Networks

Looking for information about VoLTE or want to find out more about the Optus Coverage & Network? Take a look at the topics covered below:
 

What's VoLTE?

What's VoLTE?

Voice over LTE (VoLTE) is the technology that enables voice calls to be made on our 4G Plus network.  We’re progressively rolling out VoLTE nationally.  It’s currently available in selected CBD and metro areas across Sydney, Melbourne, Adelaide, Brisbane, Perth and Canberra.

With VoLTE you’ll notice some great enhancements to your service such as faster call connection times as well as having the ability to talk and browse at the same time over a 4G connection.  Yes, that means you’ll no longer have to pause your 4G data session.  As with our 3G network, your 4G voice calls will be high definition (HD), providing a sharp and clear voice call.

VoLTE will initially be available to eligible Optus Personal and SMB postpaid customers that are using a compatible VoLTE device purchased from Optus.  For a list of compatible devices and additional info on VoLTE, click here.

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What's LTE?

WHAT'S LTE?

LTE or Long Term Evolution is the 'fourth generation' of mobile technology that we use to provide 4G services. Our 4G Plus network uses two types of LTE technology, FD-LTE and TD-LTE.

What's the difference between FD-LTE & TD-LTE?

FD-LTE (Frequency Division – Long Term Evolution) technology uses two separate frequency channels. The first channel is used for data download and the second channel is used for data upload.

TD-LTE (Time Division – Long Term Evolution) is a newer type of 4G technology, where the upload and download of data happens on the same frequency bands, but at different times.

What's LTE Advanced?

LTE Advanced is the next generation of 4G technology, bringing a number of new features to improve your 4G experience. The first feature is Carrier Aggregation, which put simply, will make the ‘network pipe bigger’ by combining a number of frequency bands to improve speeds. This means you can go even faster on our 4G Plus network in areas upgraded to LTE Advanced, when using a compatible category 6 device.

Keep in mind that LTE Advanced won’t kick in all the time. Our 4G Plus network is already superfast, so you can get an extra speed boost when doing things like downloading very large files or HD videos.

We are planning on rolling out more LTE Advanced features in the future to improve your experience on our 4G Plus network. 

What frequencies does Optus use for LTE Advanced?

Carrier Aggregation (2x channel) on the Optus 4G Plus network uses several combinations of 4G spectrum bands. In selected capital cities, we combine our 2300MHz spectrum. We also use 700MHz and 1800MHz in some capital cities and major metropolitan areas and for major regional town centres, we use 700 MHz and 2600MHz. To take advantage of our LTE Advanced network, you’ll need a compatible category 6 device.

Carrier Aggregation (3x channel) on the Optus 4G Plus uses a unique combination of 20+20MHz of 2300 MHz and 15MHz of 1800 MHz spectrum. It's currently available in selected parts of Newcastle and Melbourne CBD and requires a compatible category 9 device.

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What are the main differences between 3G & 4G?

What are the main differences between 3G & 4G?

Speed 

4G is quicker than 3G which means less buffering, better video quality, enhanced gaming experience and improved streaming services. 

Frequencies 
  • Our 4G network is called 4G Plus and uses the LTE 700Mhz, 1800Mhz, 2100Mhz, 2300MHz & 2600Mhz frequency bands to provide coverage and capacity
  • Our 3G network uses the 900MHz & 2100MHz frequency bands

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How can I find out more?

How can I find out more?

More info on mobile network coverage is available here.

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