Are 4G and SIP telephony compatible?

Question

Asterisk

Asterisk server in Europe, phone operator in St. Petersburg.
If the Internet is set to 4g from yota, for example, how will it work, with lags or norms?
Wired internet is just more expensive now.

Answer 1

Quite

Answer 2

Yota is not entirely stable, it often has micro breaks, this is not noticeable in surfing, but it will affect sip telephony.

Answer 3

Will at least sometimes lag

Answer 4

Communication Megafon.
PBX in St. Petersburg => International call goes through the European gateway (trunk)
PBX in St. Petersburg has G729 and OPUS codec, I call via iPhone and Bria
G729 application pulls a call to the USA at the Finnish border with two sticks and E
Opus works great on 3G and LTE . Communication is excellent.