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ziptested t1_j6hafy6 wrote

If your phone is not compatible with calls over 4G (does not support your carrier's configuration of VoLTE) or 5G (does not support VoNR) it will switch to 3G or 2G to make a call. Data may not be available or be very limited because not many frequencies are allocated for 3G and 2G these days.

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pizzaratking t1_j6jeuif wrote

Depends on country. This was true at one point, but in the US 2G is gone a long time and 3G was discontinued last year

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ShadoWalker123 OP t1_j6lpys8 wrote

My phone supports VoLTE, but none of the mobile carriers in my country do 😂

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Baktru t1_j6hafdn wrote

Your call and the mobile data go over the same bandwidth. When you are making a voice call, a lot of bandwidth is needed for the call alone, leaving little for the data connection, which can indeed lead to interruptions in the data you are getting.

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apathyduck t1_j6j6y66 wrote

A standard voice call uses 8kbps, an HD voice call uses between 13-24kbps (depends on carrier codec). Modern phones have available bandwidth in many mbps, so this is not what's causing the OPs issue.

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Prinzka t1_j6ifnps wrote

Does it?
I don't agree with this as a statement of fact.

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wbafan t1_j6j4poy wrote

Usually phones have some components that are shared for different connection bearers. Some phones can do both voice calls and internet traffic through 3-4-5G due to additional modulator-demodulator-antenna. Some don't because they have only one mod-demod-antenna and the system prioritizes calls over internet traffic. This doesn't happen when you are connected via WiFi, there are other components handling the processes there.

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coren77 t1_j6j5yy0 wrote

What's more irritating to me is that my phone (s22) drops my mobile connection when I make a *data* call. So if I use my company's voip (ringcentral), or even a mobile appointment with a doctor, I'll lose 4g/5g, and thus the entire call. The issues resolve if I use a VPN. If I'm fast enough getting the VPN on after the call drops, I can pick them back up in 5 to 10 seconds.

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