Switch to 3G when making calls

[windwaver]

Hi, I am with Starhub and using an LG Optimus G Pro.

I have good 4G connection at my office area but I notice whenever I make a call, my connection will ALWAYS switch from 4G to 3G and back to 4G when the call ends.

Is there a reason for this? Has anybody experience the same 'issue'?

 

[zuoom]

Normal. Most of the chipset is like that.

 

[windwaver]

Normal. Most of the chipset is like that.

Yo bro, in other words, one cannot just stick to a 4G connection because voice calls will be unable to get through in that case? Assuming we have 4G everywhere.

 

[ussr_1991]

Yo bro, in other words, one cannot just stick to a 4G connection because voice calls will be unable to get through in that case? Assuming we have 4G everywhere.

Not true.

4G in Singapore is not really for voice calls but for Internet access only.

Why?

4G LTE FAQs and Support | SingTel

10. I noticed that all my voice calls are made on 3G instead of 4G. Why is this so?
4G network is a mobile data network therefore voice calls are still currently supported on 3G instead. When a voice call is made or received, 3G/2G signal will be reflected. After the call is completed, 4G smartphone will switch back to 4G based on the availability of 4G network coverage.

 

[windwaver]

Are the telcos here rolling out VoLTE anytime soon? We are already behind in launching 4G, my goodness........