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Personal Communications Services (PCS) A new generation of wireless-phone technology that introduces a range of features and services surpassing those available in analog- and digital-cellular phone systems. PCS provides the user with an all-in-one wireless phone, paging, messaging, and data service. "Glossary of Telecommunications Terms".
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jCard, "The JSON Format for vCard" is a standard proposal of 2014 in RFC 7095.RFC 7095 describes a lossless method of representing vCard instances in JSON, using arrays of sequence-dependent tag–value pairs. jCard has been incorporated into several other protocols, including RDAP, the Protocol to Access White Space Databases (PAWS, described in RFC 7545), and SIP, which (via RFC 8688) uses ...
A base transceiver station (BTS) or a baseband unit [1] (BBU) is a piece of equipment that facilitates wireless communication between user equipment (UE) and a network. UEs are devices like mobile phones (handsets), WLL phones, computers with wireless Internet connectivity, or antennas mounted on buildings or telecommunication towers.
The document presented a vision for how mobile communications might develop which outlined ideas for both the PCNs and the CT2 standards. PCN is comparable to the North American Personal Communications Service band allocation. The 1800 MHz DCS band is reused in UMTS, LTE and 5G NR; it sees real-world deployment in LTE as "band 3".
Before B-ISDN, the original ISDN attempted to substitute the analog telephone system with a digital system which was appropriate for both voice and non-voice traffic. . Obtaining worldwide agreement on the basic rate interface standard was expected to lead to a large user demand for ISDN equipment, hence leading to mass production and inexpensive ISDN
The communications part of SOC Enterprise communications have traditionally been provided by closed, stand-alone PBX systems. Installed in a separate phone room or wiring closet, operated over a different wiring infrastructure, known only by the telecom manager, these systems ran independently from every other aspect of the business.