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Yes I have seen myself that one china mobile phone having two IMEI. But I dont know the real meaning of it and the effects of it.
The purpose of an IMEI (International Mobile Equipment Identity), MEID (Mobile Equipment Identifier) or ESN (Electronic Serial Number) or commonly known as Serial Number to control usage of an owners Cellphone in scenarios such as Phone has been stolen. With the right connection you can track your phones location through its Serial Number (since the phone transmit its esn to its network provider). You can also use the Serial Number to disable the phone if not found. Owner should submit the Serial Number to GSPD (Global Stolen Phones Database).
Categories of Mobile Phone Serial Numbers:
- IMEI: Term use to identify Serial Number of GSM Phones (phones w/ SIM Card).
- MEID/ESN: Term commonly use to identify Serial Number of CDMA Phones (phone w/o SIM Card).
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Why does your phone have 2 IMEI numbers?
A phone with dual sim cards will have 2 imei numbers. This is so the phone can be connected to two networks at once. It can be out of range of one network and seamlessly switch to the other. Often this is a lot cheaper than roaming for someone who travels a lot.
What is a dual SIM card?
There is nothing like a dual sim card, but rather a dual sim card phone. A phone with two sim card slots, allowing you to carry two numbers and switch from one to the other. This is super popular in China.
How do you check whether two IMEI numbers are of one mobile?
samsung
What is the difference between dual active Sim and dual standby Sim?
Dual Stand By: It simply means that your mobile will be in connection with both mobile service providers at the same time and you can either place or receive a call on either of the mobile numbers. But, as you are busy with one number, the other number goes "Not reachable" Dual Active: Your calling party will never hear "Not reachable" message if he calls you on second mobile number when you are busy on talking on first number. He will be just on "waiting" that time .... Reason: Dual Active mobiles use TWO processors to handle both SIM where Dual Stand By mobiles uses only ONE processor to handle both SIM
Does a dual sim phone have two operating systems?
No - the phone has one operating system. The 'dual SIM' system allows the user to have two numbers allocated to the same handset.
Is there any way to bind the IMEI number into your SIM card?
No, The IMEI Number Is An Equipment Number And The SIM Number Is A Service Number. Why Would You Want To Bind The Two Anyway? I dont know that, but in Mexico the 2 companies that sells gsm, they say they are doing that.
If your phone has been stolen and they switch it to another company can they call that company if they are still looking for it?
Assuming the handset is 'unlocked' - the thief can simply change the SIM card for another one - and use it as if it was their own. HOWEVER - if you report the theft to your carrier - they can block the phone by the following method... EVERY mobile device - whether that's a simple pager, cheap mobile phone or computer 'dongle' - has an IMEI number assigned to it. The IMEI number is unique to the device - NO two devices have the same number.. Mobile phone companies have the ability to BLOCK the IMEI number - which renders the device unusable. Unlike getting a phone 'unlocked' (for example - if you forgot your password) - blocking the IMEI number is PERMANENT ! Even if the thief changes the SIM card - the device will NOT work.
Can one SIM work in a dual SIM phone?
Well it really depends on the type of phone. Some types of phones have two CPUs so its kind of like having two phones in one, this allows you to answer two calls from two different sims at the same time. Essentially you receive signals from both the numbers in your phone. The second type of dual sim phones don't have two CPUs so you can expect mixed results. These types of phones have some sort of call secretary software that will direct you incoming phone call to voice mail if you are buy on another call on the first sim. However if the phone does not have this type of software the caller will have to wait as your line will give him the busy signal. The latter types of cell phones however are considerably cheap. Many people often ask if they can actually take two calls on one phone. The answer lies in the number of CPUs your phone has. If your phone has multiple CPUs then yes you can take two calls on one phone. However if it does not then you can not.
What are the benefits of choosing dual sim phones over single sim phones?
The dual SIM phones allows users to have to SIM cards inside the battery compartment. The user can use a single phone to take calls for two different numbers.
What does Dual SIM cell phone mean?
If you've followed the developments in the China cellphone wholesale market lately it seems that one SIM card is not enough, and there's a proliferation of mobile phones with at least two SIM cards. Major wireless cell phone manufacturers like Samsung, Nokia and Motorola have been slow to catch up with Samsung only just releasing a model at the time this article was written.So what's going on? Are the makers of these China cellphone wholesale brands that busy that they need two SIM cards? Did it only happen to so that they could avoid getting phone calls from their partner and how can it benefit us as consumers.We attempted to get to the bottom of this dual mobile mystery.What is dual SIM?Dual SIM essentially refers to a phone that can hold and utilize two SIM cards in the same GSM cellular phone. It doesn't matter if they're dual SIM TV phones or any other dual SIM phones as long as they take two SIM cards and read them then they are dual SIM mobile phones.How does dual SIM work?The answer to this question all depends on the phone. Some types of unlocked phone have two CPUs (central processing units, the part of the phone that does the 'thinking') which allow them to potentially answer two phones at the same time. Essentially it means that you can receive signals for both numbers.Not all dual SIM card phones have two CPUs and this can have two results for consumers. If the phone has call secretary software, or your carrier has an online call secretary service then if you're on the phone and another call comes in then it'll be shipped to voicemail. If no such software or option exists on your GSM dual mobile then the other caller will just be told that your line is busy.So can I take two phone calls at the same time on a dual SIM phone?Again the answer to that question depends on how many CPUs your phone has, if there is more than one then there should be no problem. But if your China cellphone wholesale phone only has the one CPU then you're only going to be able to take or make one phone call at a time.Why dual SIM?The concept of dual SIM cell phones suits many people for many reasons, regardless of whether you're interested in a phone from a major brand or a dual SIM phone from China. But the most-commonly given reasons are for coverage, economy and convenience.When trying to get the best deal/best coverage out of your unlocked phone then sometimes the service of one carrier isn't enough and you need to set up two phones to make sure you're reachable at all times and you reduce the phone bill on your mobile phone. A cell phone that will handle two SIM cards should let you cut down costs while keeping two carriers on the same phone.The other reason for two SIM cards is the ability to keep all of your personal and business contacts separate while keeping them in the same place.Do both numbers in Dual SIM share the same memory?Yes, Both numbers share the same telephone list and SMS library so there's no threat of wasting hours scrolling through two different libraries to find one message.Why do most dual SIM phones come from China?Nobody knows quite why dual SIM phone from China are so prevalent but with the volume of electronics being manufactured in China and the frequency that OEM manufacturers are used means that China cellphone wholesale makers are more likely to create new solutions and new features than phone makers from other parts of the world. Of course it could also be that they don't want their partners to see who else they're calling but we'll never know.How does a dual SIM phone switch from one SIM card to another?When you're using a wireless cell phone with two SIM cards when making calls is usually done by either pressing a button or making a menu selection.When your dual mobile is receiving calls then it's simply a case of first come first serve and the caller who gets in contact with you first talks to you first, regardless of which SIM their details are on.So there you go, some of the answers to dual SIM card phones that you probably wanted to know but were afraid to ask. One thing remains true, when it comes to unlocked cell phones or China cellphone wholesale manufacturers we are going to be seeing a whole lot more phones on the market with slots for two SIM cards. And that is definitely a good think in my books.
What sim is compatible with the iPhone carrier?
In America, the two SIM-using GSM carriers are AT&T and T-Mobile. T-Mobile can only use it's EDGE network on an iPhone with a SIM Card needed.
