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Cheap Mobile Mysteries – What is Tri-SIM?

Introduction:

SIM cards are small smart cards that fit into cellular phones based on GSM technology. It contains modified information about your friends and families, as well as networking and even phone book data. And you can very easily insert the SIM card into another GSM phone.

Purpose:

A SIM card is a digital identification chip in mobile phones. Its support and encryption capability help prevent theft of your mobile phone and prevent your conversations from being intercepted. The SIM card also stores personal data and payment information and can be shared between phones. So, you can easily receive private calls even when using someone else’s phone, just by inserting one SIM card into that mobile phone.

Dual SIM:

Dual-SIM means that the mobile phone has two sockets and the ability to use two cards at the same time. A Dual-SIM mobile phone can have access to two different phone numbers at the same time, while other phones can only use one phone number.

Three SIM cards:

Tri-SIM means that the mobile phone has three SIM card slots and the ability to use three SIM cards at the same time. A mobile phone with three SIM cards can access three different phone numbers at the same time to receive calls and you can even dial the number.

CDMA:

CDMA is a radio technology invented by Qualcomm. This allows a large number of cell phones to operate simultaneously in the same area by assigning each phone a unique radio transmission pattern defined by a predetermined code. Verizon and Sprint are the two largest CDMA carriers in the US

Problems with Tri-SIM:

The main problem I have found is that if I use a dual SIM mobile set and both SIM cards are active and working fine and if you use SIM 1 for a voice call and at that very moment the SIM -card 2 is automatically disconnected, this means that if someone tries to call you at the same time on SIM 2, the caller will get a message that this “no” is currently disconnected / the user is busy / unreachable, etc. and another problem if someone has been trying to contact you on SIM 1 for a very long time it’s an urgent matter but you’re busy on SIM 2, you still won’t get a call waiting message, which is particularly bad.

What are the main purposes of mobile phones with three SIM cards?

Conclusion:

To the readers, I would only advise you not to buy cell phones with three SIM cards, as this will not bring the greatest benefit to the users. If you really want to use, you can use two SIM cards, but one SIM card is always great for a true and sincere user.

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