I hate to ask a silly question, but I thought all Androids could surf the Web already while being on a phone call? I have always been able to do that. That's why we are better than Apple products. Right? VoLTE is just a fix for Apple people to finally be able to enjoy their phones as much as us. Besides better connectivity during the call?
Posted via the Android Central App
Not a silly question.
This is network 101 for me and all the other folks who want it simple. This is probably not 100% technically accurate for the professional network engineer but is probably good enough for those of us who have in the past purchased at least one of the wonderful books "........... for Dummies". Even areas I was considered a professional those were valuable sources.
GSM based networks [AT&T, T-Mobile, etc] have always had the ability to do voice and data.
CDMA based networks [Verizon, Spirit, etc] because of the different original base design require some work arounds. All phone calls (voice) until VoLTE have been carried on the old CDMA part of the network. Data was carried on the 3G and 4G parts of the network or your WiFi. To achieve voice+data before VoLTE, phones required two antennas to use two network bands at the same time.
Verizon wants to move to VoLTE service for a variety of business reasons. Manufacturers only need to allow space and battery capacity for one radio. If Verizon can get all voice off of the old CDMA bandwidth it can be purposed for data and voice service. Bandwidth is a big asset and big money.
That means software and network changes to allow the radio/antenna used for access to the 4G band to process both voice and data at the same time (Advanced Calling). Plus enhances to the 4GLTE networks.
First of you are using WiFi, you can do both voice and data, the issue does not exist when data access is WiFi based.
Current problem exists because some new phone are being built with one radio/antenna for the new type of service. Since they have only one antenna they can only handle either voice or data until Advanced Calling is rolled out to that model of phone. Verizon is doing a phone by phone roll out. After they roll it to your phone and you activate it, voice+data service will be available as long as your complete call is done in a 4G area. Otherwise it will still be one or the other available.
Yes it does solve a problem for Apple users but it is a problem with newer model Android phones. First two getting a lot of comments are the Moto X (2014) and Turbo