There are many telephone operating companies today.
Here are just a few of the top companies with the highest revenue:
- AT&T
- Desutsche Telekom
- Vodafone
- Orange
- Telekom Italia
- China Telekom
- 3
- Megafon
- and so on.
Here are a few brands that make phones:
- Apple
- Samsung
- Nokia
- Sony
- Asus
- Blackberry
- and so on
https://en.wikipedia.org/wiki/List_of_telephone_operating_companies
Each company has their own stakeholders. I believe the object has changed because of the amount of competitors. Each company are trying to match what their competitors have and have an extra feature. The teleology of the phone is constantly being developed.
There is always a comparison between phone brands and features. It's a constant competition.
https://www.crn.com/slide-shows/mobility/head-to-head-apple-iphone-xs-vs-samsung-galaxy-s9/2
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