Advanced Mobile Phone System (AMPS) was an analog mobile phone system standard originally developed by Bell Labs and later modified in a cooperative effort between Bell Labs and Motorola. It was officially introduced in the Americas on October 13, 1983, and was deployed in many other countries too, including Israel in 1986, Australia in 1987, Singapore in 1988, and Pakistan in 1990. It was the primary analog mobile phone system in North America through the 1980s and into the 2000s. As of February 18, 2008, carriers in the United States were no longer required to support AMPS and companies such as AT&T and Verizon Communications have discontinued this service permanently. AMPS was discontinued in Australia in September 2000, in Pakistan by October 2004, in Israel by January 2010, and Brazil by 2010.
A personal communications service (PCS) is set of communications capabilities that provide a combination of terminal mobility, personal mobility, and service profile management. This class of services comprises several types of wireless voice or wireless dcommunications systems, typically incorporating digital technology, providing services similar to advanced cellular mobile or paging services. In addition, PCS can also be used to provide other wireless communications services, including services that allow people to place and receive communications while away from their home or office, as well as wireless communications to homes, office buildings and other fixed locations. Described in more commercial terms, PCS is a generation of wireless cellular-phone technology, that combines a range of features and services surpassing those available in analogue- and first-generation (2G) digital-cellular phone systems, providing a user with an all-in-one wireless phone, paging, messaging, and data service.
Bell Mobility Inc. is a Canadian wireless network operator and the division of Bell Canada which offers wireless services across Canada. It operates networks using LTE and HSPA+ on its mainstream networks. Bell Mobility is the third-largest wireless carrier in Canada, with 10.1 million subscribers as of Q3 2020.
A cellular network or mobile network is a telecommunications network where the link to and from end nodes is wireless and the network is distributed over land areas called cells, each served by at least one fixed-location transceiver. These base stations provide the cell with the network coverage which can be used for transmission of voice, data, and other types of content. A cell typically uses a different set of frequencies from neighboring cells, to avoid interference and provide guaranteed service quality within each cell.
Cellular One is the trademarked brand name that licenses services used by several cellular service providers in the United States. The brand was sold to Trilogy Partners by AT&T in 2008 shortly after AT&T had completed its acquisition of Dobson Communications. Cellular One was originally the trade name of one of the first mobile telephone service providers.
This article discusses the mobile cellular network aspect of teletraffic measurements. Mobile radio networks have traffic issues that do not arise in connection with the fixed line PSTN. Important aspects of cellular traffic include: quality of service targets, traffic capacity and cell size, spectral efficiency and sectorization, traffic capacity versus coverage, and channel holding time analysis.
Alltel was a landline, wireless and general telecommunications services provider, primarily based in the United States. Before its wireless division was acquired by Verizon Wireless and AT&T, Alltel provided cellular service to 34 states and had approximately 13 million subscribers. As a regulatory condition of the acquisition by Verizon, a small portion of Alltel was spun off and continued to operate under the same name in six states, mostly in rural areas. Following the merger, Alltel remained the ninth largest wireless telecommunications company in the United States, with approximately 800,000 customers. On January 22, 2013, AT&T announced they were acquiring what remained of Alltel from Atlantic Tele-Network for $780 million in cash.
United States Cellular Corporation is an American mobile network operator. It is a subsidiary of Telephone and Data Systems Inc.. The company was formed in 1983 and is headquartered in Chicago, Illinois. uscellular is the fifth-largest wireless carrier in the United States, with 4,656,000 subscribers in 426 markets in 21 states as of the 2nd quarter of 2023. The organization was previously known as U.S. Cellular.
Telus Mobility is a Canadian wireless network operator and a division of Telus Communications which sells wireless services in Canada on its numerous networks. It operates 5G, LTE and HSPA+ on its mainstream networks. Telus Mobility is the second-largest wireless carrier in Canada, with 10.6 million subscribers as of Q3 2020.
Sprint Corporation was an American telecommunications company. Before being acquired by T-Mobile US on April 1, 2020, it was the fourth-largest mobile network operator in the United States, serving 54.3 million customers as of June 30, 2019. The company also offered wireless voice, messaging, and broadband services through its various subsidiaries under the Boost Mobile and Open Mobile brands and wholesale access to its wireless networks to mobile virtual network operators.
Amp'd Mobile was a cellular phone service launched in the United States in late 2005, and in Canada in early 2007. The company was a Mobile Virtual Network Operator offering 3G voice and data services over the Verizon Wireless EV-DO network, including text and picture messaging, push-to-talk, and over-the-air downloadable applications and content from its Amp'd Live service. Its primary non-venture capital investors were MTV Networks and Universal Music Group. The service targeted 18- to 35-year-olds, and was the first integrated mobile entertainment company for youth, young professionals and early adopters, similar to Helio.
The term, Subsidy Password, is used by Motorola and other handset manufacturers to refer to the 8-digit code unlock code necessary to remove the operator lock from cell phones. This code is randomly assigned to individual cell phones by the OEM on request of the mobile service operator and prevents the use of a particular phone on a cellular network other than that to which the phone was originally sold.
Solo Mobile is a discontinued mobile virtual network operator in Canada started by Bell Mobility in 2000. Historically, Solo was considered a discount wireless brand, offering low price monthly plans with some unlimited options in certain cities. Its products and services were only sold in British Columbia, Alberta, Ontario and Quebec. The brand ceased advertising towards new customers since November 2011, and new activations were officially discontinued on May 17, 2012.
The BlackBerry Pearl was a series of smartphones developed by Research In Motion, and was the first BlackBerry device with a camera and media player. It was originally released on September 12, 2006. T-Mobile was the first US carrier to release the phone as a carrier device. The last BlackBerry Pearl released was the 9100 series on May 13, 2010. After this model was cleared out, RIM discontinued the Pearl series.
A mobile phone signal is the signal strength received by a mobile phone from a cellular network. Depending on various factors, such as proximity to a tower, any obstructions such as buildings or trees, etc. this signal strength will vary. Most mobile devices use a set of bars of increasing height to display the approximate strength of this received signal to the mobile phone user. Traditionally five bars are used.
The LG Rumor is a mobile phone released by LG Electronics in September 2007. The phone was available in many different colors, and features a slide-out QWERTY keyboard in addition to the standard 12-button keypad, a 1.3 megapixel camera, and a 176x220 pixel screen. It was the first from the LG Rumor line.
The HTC Touch Pro is a smart phone from the Touch series of Internet-enabled Windows Mobile Pocket PC smartphones designed and marketed by HTC Corporation of Taiwan. It is an enhanced version of the HTC Touch Diamond with the addition of a left-side slide-out QWERTY keyboard, a microSD card slot, and a camera flash. The Touch Pro smartphone's functions include those of a camera phone and a portable media player in addition to text messaging and multimedia messaging. It also offers Internet services including e-mail, instant messaging, web browsing, and local Wi-Fi connectivity. Depending on its market, it is a quad-band GSM or quad-band UMTS phone with GPRS, EDGE, UMTS, HSDPA, and HSUPA or a tri-band CDMA phone with 1xEV-DO Rev A. All versions feature TouchFLO 3D — a new enhanced version of the TouchFLO interface, unique only to the latest Touch series. In March 2009, HTC announced a new version, the Touch Pro2 which has a larger screen (3.6") and a redesigned slide out QWERTY keyboard with spaces between the keys.
The HTC 7 Pro is a business class smartphone, part of the HTC 7 series of Internet-enabled, Windows Phone smartphones designed and marketed by HTC Corporation. It is the successor of the HTC Touch Pro2 with a left-side slide-out QWERTY keyboard, with tilting screen.
The LG Optimus One is an entry-level series of touch-screen smartphones manufactured by LG Electronics, Inc. It was released running the Android 2.2 Froyo, and later LG released software to upgrade it to Android 2.3 Gingerbread. Although the basic physical form factor of each variant is the same, the variants have differences in hard button shape and layout, the form of the metal side bezel and the user interfaces added by LG or various carriers. Versions of the Optimus One exist that operate on various frequency bands and either GSM or CDMA-based network protocols. They may also feature one or more variations in hardware, such as a faster processor, the addition of a physical keyboard, a modem with higher theoretical speeds, or a better digital camera.
