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Frequently Asked Questions

Is it possible to make an Internet call without a SIM card?

Nokia N80 Internet Edition: VoIP FAQ
Yes, if you have a registered SIP account. The over-the-air (OTA) and plug-in provisioning will set the Internet call as the default, and the terminal changes automatically to Internet calls if no subscriber identity module (SIM) card is inserted.
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Is it possible to connect to WLAN without a SIM card?

Nokia N80 Internet Edition: VoIP FAQ
Yes. When you use a terminal without a subscriber identity module (SIM) card, an offline profile is in use. With this profile, the terminal can be used in places where GSM phones are not allowed, such as airplanes. The WLAN connection might not be allowed in those circumstances either, and therefore you will be requested to confirm the creation of a WLAN connection in offline mode. No. When the hang-up button is pressed, the held call is disconnected.
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Is it possible to change the SIM card on my device?

Telmap Navigator: mobile navigation support center
Yes, the SIM card can be changed and Telmap Navigator can be used as usual. The data traffic will be charged on the new SIM card.
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What is a SIM Card?

FAQ| Frequently Asked Questions On Cell Phone and Cell Phone...
Ordinary cell phone service works so that the unique serial number in your phone (its ESN) is used by the cell phone service provider to identify who you are. The wireless service 'knows' that a particular phone's serial number is your phone and knows to send phone calls to that phone when someone dials your phone number. A GSM phone is not directly linked to you. Instead, it has a removable account card, called a SIM (subscriber information module) and this SIM has a unique serial number on it.
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I have lost (was stolen) SIM-card. Is it possible to block it upon my request?

FAQ
Since being sold without entering into agreement with subscribers, prepayment SIM-cards are “non-identified” product, i.e. not belonging to any certain natural person or legal entity. For such reason, network 5+ does not block cards upon subscriber’s request. SIM card may be blocked in the event if its user breaks operation of 5+ network, this way causing damage to other subscribers.
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To better serve you
A SIM (Subscriber Identity Module) card is the heart of the GSM cell phone. It is a small chip, like the size of a dime. It is located behind the battery of most popular phones. See below "How to install a SIM card?" question. It carries vital information such as the phone number, the carrier that supplies it and accordingly the rates you will pay when placing or in some cases when receiving phone calls.
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O2 GSM prepaid cell phone FAQ
SIM stands for Subscriber Identity Module. A SIM card is a small "smart card" for GSM/GPRS mobile phones that contains your personal account profile as well as saves important information (i.e. network information, account services, your mobile phone number, stored telephone numbers, SMS messages and more). The SIM card must be inserted in the handset in order for it to operate.
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Customer Support | FAQs | SIM Cards
The acronym SIM means, Subscriber Identification Module. The SIM card is a chip that can be found in the back of the phones, underneath the battery. The SIM card contains all stored phonebook entries and service provider information.
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Autopage
Yes â?" it is possible to have more than one SIM card. Some people, for instance, use one in one cellular telephone when out and about and another in their car, yet have one number for both. It is also possible to have one SIM card and multiple phones, as the SIM card can be easily removed and transferred to any phone. Some phones are locked on to a particular Network, so ensure that your SIM card works in a new phone before buying it.
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Information Systems Designated Procurement: Hardware
A SIM card is the Subscriber Identity Module. It provides between 16 and 64 kb of memory which is used to provide your phone number, and to store others' phone numbers, SMS messages and other information. It can be moved from device to device (assuming the same carrier) so you can keep your phone number. You need the SIM card to send and receive email (and other data) as well as make and receive telephone calls. The SIM card is not used on all networks.
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BSNL Portal || FAQs
A SIM Card is nothing but a small pre-programmed chip, which is inserted into the mobile handset, and it contains subscriber information that facilitates interaction between the subscriber and the mobile network
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SearsConnect
A sim card, also referred to as a smart card is necessary for the operation of Global Standard for Mobile (GSM) phones. It stores your service information and can be used to store your phone book entries. The sim card comes pre-inserted and pre-activated with your new SearsConnect wireless phone.
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m0biles.com - FAQ
GSM phones use Subscriber Identity Module smart cards containing user account info. After plugging in SIM cards GSM phones become automatically programmed with user info. This means SIM cards can be programmed to display customized menus for individual services. Your SIM Card is basically the brain of any mobile device. It stores all information for you and your supplier and without one your phone wont work.
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Simply Connect - FAQ
A sim card, also referred to as a smart card, is necessary for the operation of GSM phones. It stores your service information and can be used to store your phone book entries. The sim card comes pre-inserted and pre-activated with your new SimplyConnect wireless phone.
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GSM Service-TriBand Roaming FAQs
The SIM (Subscriber Identity Module) card also known as a "smart chip" is basically the "brain" of the phone, providing cellular service as well as many other functions including call log, voice mail and SMS and GPRS (internet connection standards). SIM cards are the size of a credit card but they have a pop-out chip about the size of a postage stamp which fits into all modern GSM phones.
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Nokia Flash Reverse Electronic Engineering - FAQ: NOKIAFREE ...
A SIM card is a "Subscriber Identification Module" card, a small board containing a chip which holds your phone number and also some memory for use as a phone book or SMS bank. There are 16k and 32k SIM's around which have different sizes of memory available. A GSM-phone won't work without a SIM card, except emergency calls to 911, 112 etc... depending on countries.
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Services & Solutions
SIM stands for "Subscriber Identity Module." It is also known as a "smart card." A SIM card is the physical item that contains all necessary information for uniquely identifying a subscriber.
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Services FAQ
A SIM card is nothing but a small pre-programmed chip, which is inserted into the mobile handset, and it contains subscriber information that facilitates interaction between the subscriber and the mobile network" Any standard GSM handset. At present services will be available in 900MHz range. In future 1800MHz range will also be available in major cities / towns. No.The handset has to be procured by the customer as per his choice from the market.
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MoreMobility - FAQ
A sim card, also referred to as a smart card is necessary for the operation of GSM phones. It stores your service information and can be used to stored your phone book entries. The sim card comes pre-inserted and pre-activated with your new MoreMobility wireless phone.
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Digicell... Digital Cellular Phone Servie In Belize
The SIM is a microchip that is inserted inside the battery compartment of the GSM phones. This is an advantage from several viewpoints. The SIM contains all the necessary information such that you can use any GSM phone without complicated re-programming. Your network profile and your phone directory (among other information) are stored on the SIM itself. This adds a measure of security to the system as well as portability. To change phones, you simply place your SIM in the new phone.
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Skyphonics.com : Your PCS Source
A sim Card is a small electronic chip which contains your mobile number, phonebook, account information and provisioning. It's placed in a slot found on the cellular device, usually under the battery.
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Prepaid SIM Card Buyer's Guide
The SIM (Subscriber Identification Module or Subscriber Identity Module) card - a.k.a. "smart card" - holds all of a subscriber's personal information and phone settings. In essence, it is the subscriber's authorization to use the network. It also holds the phone number, personal security key and other data necessary for the handset to function. The card can be switched from phone to phone, letting the new phone receive all calls to the subscriber's number.
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phone unlocking faq
A sim card is a small plastic card with a chip on one side which is inserted into a mobile phone (usually behind the battery) and contains network and phone number details. It is also possible to store data such as phonebooks and SMS (text) messages on the sim card. All of the essential information about a user's mobile account is held on the sim card, therefore you can use your sim card in another person's phone to make and recieve calls and messages and it will be billed to you as normal.
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Do I have to purchase another SIM card for BlackBerry Internet Solution™?

BlackBerry
For M1 customers: If you sign up for the service as a Value-Added Service, you may use your existing SIM card. If you sign up as a Plan, you will need a new mobile number and purchase a SIM card at $26.25.
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What is a SIM card (SIM chip)?

FAQs
The SIM (Subscriber Identity Module) card (SIM Chip) is the brain of your handset. The SIM card is approximately the size of a credit card. The SIM chip is removed from the card holder and inserted into the back of the handset. It’s about the size of a postage stamp, with embedded circuitry on one side. When inserted into a GSM handset, the SIM when activated by Cable & Wireless facilitates mobile service on a particular GSM network.
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bMobile Handsets and Mobile Devices - Handset FAQs
The SIM (Subscriber Identity Module) card is the brain of your handset. The SIM card is approximately the size of a credit card. The SIM chip is removed from the card holder and inserted into the back of the handset. Itâ??s about the size of a postage stamp, with embedded circuitry on one side. When inserted into a GSM handset, the SIM when activated by Cable & Wireless facilitates mobile service on a particular GSM network.
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a multi-SIM user, can I make multiple mobile calls via the Internet?

SingTel - Generation mio : mio Mobile : FAQs
For each user account, the Service allows only one phone to make mobile calls via the Internet at any one time.
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In which countries can I make calls with my Mobistar SIM card?

The list of places where you can make and receive calls is constantly growing. Check our web site at www.mobistar.be to see if your destination abroad is included in the list, and to consult the roaming possibilities. NB: The rates given on our web site are valid for Optimum pricing plans and include VAT. Your company has probably concluded a company contract with Mobistar that includes special rates for a list of foreign countries.
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Can I make data connections using my SIM Card?

Redbox - International FAQ's
Your phone may need to be unlocked before using your SIM Card. It is possible to unlock a phone. Please check this with your mobile phone supplier – it is your right to get your phone unlocked if you wish. For our latest phone compatibility, please see Table 1. (Phones not listed on this table have not been tested yet).
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