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Some mobile phones support use of two SIM cards, described as dual SIM operation. When a second SIM card is installed, the phone may allow users to switch between two separate mobile network services manually, have hardware support for keeping both connections in a "standby" state for automatic switching, or have two transceivers to maintain ...
The Samsung Galaxy Grand 2 is powered by a 2600 mAh Li-ion, which is capable of lasting up to 17 hours. [2] The 5.25 in (13.3 cm) TFT HD, multi-touch screen is capable of 16 million colours. Launched in two variants, G7102 with dual SIM card slots and G7105 with LTE network support, dual micro SIM slots and with dual standby.
GSM uses TDMA and FDMA for user and cell separation. UMTS, IS-95 and CDMA-2000 use CDMA. WiMAX and LTE use OFDM. Time-division multiple access (TDMA) provides multiuser access by chopping up the channel into sequential time slices. Each user of the channel takes turns to transmit and receive signals.
If SIM 2 is in use, a caller to SIM 2 will be redirected by the carrier network as though the phone were off or out of range. E.g., to voicemail. This is the default behaviour, and it is what happens if “Dual SIM Always On” is set to "Offline". Setting “Dual SIM Always On” allows a call on one SIM to interrupt a call on the other SIM.
However, the dual sim configurations are DSDS (Dual Sim/Dual Standby) meaning the user must specify in settings which SIM can be used to send/receive calls or browse the internet. The other SIM will be inactivated. The Mate 10 features expandable storage via a micro-SD card supporting up to 256 Gb (uses SIM 2 slot).
The S5 Active and S5 Sport were released in the United States in June 2014, and are exclusive to AT&T and Sprint respectively. [60] [61] [62] The S5 Active was released in Canada in October 2014. [63] In June 2014, Samsung also released a dual SIM version of the Galaxy S5, called Samsung Galaxy S5 Duos, model SM-G900FD. The Duos has the LTE ...
A typical SIM card (mini-SIM with micro-SIM cutout) T-Mobile nano-SIM card with NFC capabilities in the SIM tray of an iPhone 6s cell phone 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 ...
Mobile phone signal. A mobile phone signal (also known as reception and service) is the signal strength (measured in dBm) received by a mobile phone from a cellular network (on the downlink). Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary.