What is the benefit of dual SIM?

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Tags

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2. #active
3. #disadvantage
4. #transceivers
5. #single
6. #phones
7. #consume
8. #leading
9. #price
10. #expensive
11. #higher
12. #means
13. #battery
14. #devices
15. #these
16. #smartphones
17. #radio
18. #regular