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OpenBTS (Open Base Transceiver Station) is a software-based GSM access point, allowing standard GSM-compatible mobile phones to be used as SIP endpoints in Voice over IP (VoIP) networks. OpenBTS is open-source software developed and maintained by Range Networks .
However, the support may be limited only to certain phones – for example, LG released its bootloader unlock tool only for certain models of its phones. [47] Also, a manufacturer could discontinue bootloader unlocking support, as was the case with LG [ 48 ] and Huawei .
The Samsung Galaxy Core Prime (also known as the Galaxy Prevail LTE on Boost Mobile) is an Android smartphone designed, developed, and marketed by Samsung Electronics. The Galaxy Core Prime features a 4.5 in (110 mm) WVGA display, 4G LTE connectivity and Android Kitkat 4.4.4 . [ 8 ]
Thomas Haug (first GSM president) and Philippe Dupuis (second GSM president) during a GSM meeting in Belgium, April 1992. In 1983, work began to develop a European standard for digital cellular voice telecommunications when the European Conference of Postal and Telecommunications Administrations (CEPT) set up the Groupe Spécial Mobile (GSM) committee and later provided a permanent technical ...
The Samsung Galaxy J3 Prime (also known as Galaxy J3 Emerge, Galaxy J3 Eclipse, Galaxy Express Prime 2, Galaxy Amp Prime 2, and Galaxy J3 Luna Pro) is an Android smartphone manufactured by Samsung Electronics and was released in January 2017. [2] [3] It is mainly used as branded phone by mobile carriers. [1]
This is the most commonly used profile, providing support for the popular Bluetooth headsets to be used with mobile phones and gaming consoles. It relies on SCO audio encoded in 64 kbit/s CVSD or PCM and a subset of AT commands from GSM 07.07 for minimal controls including the ability to ring, answer a call, hang up and adjust the volume.
The "download booster" feature, initially featured on the Samsung Galaxy S5, was retrofitted with the Android 4.4.2 update. TouchWiz Nature UX 2.5 was released in 2013 to support the last updates to Android Jelly Bean (4.1–4.3), and was first used on the Galaxy Note 3 and the Galaxy Note 10.1 2014 Edition .
Even if mobile phones are able to use 3G or 4G (which have much stronger encryption than 2G GSM), the base station can downgrade the radio communication to 2G GSM and specify A5/0 (no encryption). [20] This is the basis for eavesdropping attacks on mobile radio networks using a fake base station commonly called an IMSI catcher.