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Nowadays, most phones offer dual SIM support, eliminating the hassle of carrying two separate phones. However, along with the advantages, there are also some disadvantages.

There was a time when only one SIM card could work in a phone. Using a second SIM required various workarounds. Now, with advancements in technology, two SIM cards can easily work in a single phone. Most phones today come with dual SIM support. This eliminates the need for people to carry two separate phones for personal and professional use. But have you ever wondered how dual SIM phones work and what their advantages and disadvantages are? Today, we have the answers to these questions.

How do dual SIM phones work?

Dual SIM Dual Standby (DSDS) - This is the most common setup for dual SIM phones, where both SIM cards are on standby. This means both are ready to receive phone calls and texts. However, when one SIM is actively in use, such as during a call, the other goes offline. This setup saves you the trouble of carrying two separate phones, but you cannot actively use both SIMs simultaneously.

Dual SIM Dual Active (DSDA) - This setup is a step ahead of DSDS. As the name suggests, both SIMs remain active all the time. Even if the first SIM is busy, calls can still be received on the second SIM. This setup is useful for people who are constantly busy with different calls. This setup is slightly more expensive than DSDS and also consumes more battery power.

Advantages and Disadvantages of Dual SIM Phones

Advantages:

No need to carry two phones, and it's travel-friendly.
You can use the services of two different providers on the same phone.
If one SIM loses network coverage, the other can be used.

Disadvantages:

Setting up and managing dual SIM phones can be a bit complicated. It is more expensive and consumes more battery.
There are issues with data speed on the secondary SIM.
In many phones, the secondary SIM uses the same slot as the memory card. Therefore, there is no option to insert a memory card.