open cellular network
21Municipal wireless network — (Municipal Wi Fi, Muni Wi Fi or Muni Fi) is the concept of turning an entire city into a Wireless Access Zone (WAZ), with the ultimate goal of making wireless access to the Internet a universal service. This is usually done by providing municipal …
22GSM — For other uses, see GSM (disambiguation). The GSM logo is used to identify compatible handsets and equipment GSM (Global System for Mobile Communications, originally Groupe Spécial Mobile), is a standard set developed by the European… …
23iPhone — This article is about the line of smartphones by Apple. For other uses, see iPhone (disambiguation). The iPhone 4S, the most recent generation of the iPhone iPhone models …
24iOS version history — Contents 1 Overview 2 Versions 2.1 Unreleased versions …
25Voice over Internet Protocol — (VoIP, IPAEng|vɔɪp) is a protocol optimized for the transmission of voice through the Internet or other packet switched networks. VoIP is often used abstractly to refer to the actual transmission of voice (rather than the protocol implementing… …
26T-Mobile — International AG Type Private (subsidiary of Deutsche Telekom AG) Industry Telecommunications Founded 1990 …
27Truphone — Infobox generic color = light blue name = Quick facts| img1 = Truphone logo.jpg width1 = 220px cap1 = Internet telephony on mobile phones| hdr1 = Truphone lbl1 = Developed by: row1 = Software Cellular Network Ltd lbl2 = Functionality: row2 =… …
28T-Mobile USA — T Mobile USA, Inc. T Mobile USA logo, 2006–present Type Private (subsidiary of T Mobile International AG) Indu …
29Mobile telephony — Mobile phone tower Mobile telephony is the provision of telephone services to phones which may move around freely rather than stay fixed in one location. Mobile phones connect to a terrestrial cellular network of base stations (cell sites),… …
30Motorola — This article is about the original company which split in 2011. For the mobile phone manufacturer, see Motorola Mobility. For the equipment provider, see Motorola Solutions. Motorola, Inc. Former type Public company Industry …
