Ads
related to: sim card for calling international
Search results
Results from the WOW.Com Content Network
A typical SIM card (mini-SIM with micro-SIM cutout) A SIM (Subscriber Identity Module) card is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).
OneSimCard's proprietary global travel SIM card [4] allows customers to call from anywhere in the world [5] without incurring additional roaming charges. [6] OneSimCard offers free incoming calls in over 160 countries, outgoing calls from 25 cents per minute and data service from 10 cents/MB.
E.118 is an international standard that defines the international telecommunication charge card, for use in payphones. [1] It also defines the Integrated Circuit Card Identifier (), which is used in Subscriber Identity Modules (SIMs, including SIM cards and eSIMs. [2]
The phone identifies the subscriber by transmitting the International mobile subscriber identity (IMSI) number, which is stored on a SIM card that can, in theory, be transferred to any handset. However, the network's ability to know a subscriber's current, individual device enables many network and security features.
Some providers achieve this automatic call interception and callback by encoding a program onto the SIM card. Other providers use Multi-IMSI (International Mobile Subscriber Identity) technology to lower the cost of roaming. In this case, there is a program on the SIM card that selects the lowest cost IMSI (or 'profile') to use in a specific ...
For GSM, UMTS and LTE networks, this number was provisioned in the SIM card and for cdmaOne and CDMA2000 networks, in the phone directly or in the R-UIM card (the CDMA equivalent of the SIM card). Both cards have been superseded by the UICC. An IMSI is usually presented as a 15-digit number but can be shorter.
Ads
related to: sim card for calling international