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Mobile virtual network operators (MVNOs) in the United States lease wireless telephone and data service from the four major cellular carriers in the country—AT&T Mobility, Boost Mobile, T-Mobile US, and Verizon—and offer various levels of free and/or paid talk, text and data services to their customers.
CAMEL Phase 1 defined only very basic call control services, but introduced the concept of a CAMEL Basic call state model (BCSM) to the Intelligent Network (IN). Phase 1 gave the gsmSCF the ability to bar calls (release the call prior to connection), allow a call to continue unchanged, or to modify a limited number of call parameters before allowing it to continue.
Promoting efficient use of federal radio spectrum and encouraging the development and implementation of new and emerging telecommunications technologies. Performing long-term research to explore uses of higher frequency spectrum. Working with Federal, state, and local public safety agencies to address future spectrum requirements.
The Special Enrollment Examination (or SEE) is a test that individuals can take to become an Enrolled Agent in the United States. The Enrolled Agent credential is conferred and regulated by the Internal Revenue Service (IRS). [1] The exam consists of three parts: Part 1 – Individual; Part 2 – Business
IMT-Advanced is intended to accommodate the quality of service (QoS) and rate requirements set by further development of existing applications like mobile broadband access, Multimedia Messaging Service (MMS), video chat, mobile TV, but also new services like high-definition television (HDTV). 4G may allow roaming with wireless local area ...
An access network is a type of telecommunications network which connects subscribers to their immediate service provider. It is contrasted with the core network, which connects local providers to one another. The access network may be further divided between feeder plant or distribution network, and drop plant or edge network.
The National Association of Enrolled Agents (NAEA) is an organization of enrolled agents (EAs) in the United States. Founded in 1972, it claims a membership of 11,000 EAs. Founded in 1972, it claims a membership of 11,000 EAs.
External Short Messaging Entity (ESME) is an external application that connects to a Short Message Service Center (SMSC) to engage in the sending or receiving of SMS messages. The term was coined by Aldiscon. SME is a term used in many cellular circles to describe a network entity (mobile/cell phone) that can send/receive messages.