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In business telephony, a telephone extension may refer to a phone on an internal telephone line attached to a private branch exchange (PBX) or Centrex system. The PBX operates much as a community switchboard does for a geographic telephone numbering plan and allows multiple lines inside the office to connect without each phone requiring a ...
Mobile phones use geographic area codes (two digits): after that, all numbers assigned to mobile service have nine digits, starting with 6, 7, 8 or 9 (example: 55 15 99999–9999). 90 is not possible, because collect calls start with this number.
As a result, a few North American telephone administrations, notably New York Telephone Co., first introduced letter combinations that could not be associated with a familiar pronounceable central office name. Finally, they sought the elimination of central office names and letter codes, and introduced all-number calling (ANC).
Enterprise phone systems are different. When Avaya announced its "Fixed Mobile Convergence" initiative in 2005, it was using a different definition. What Avaya and other PBX manufacturers were calling FMC was the ability for a PBX to treat a cell phone as an extension, and the ability for a cell phone to behave like a PBX extension phone:
The Young Learner (YL) Extension to CELTA was aimed at teachers who had gained the CELTA certificate and wished to build on the content of CELTA to teach young learners (i.e. children and teenagers). [20] The YL Extension to CELTA was normally taught full-time over the course of two weeks. [7]
Bowl season continues with a matchup between Cal and UNLV in the Art of Sport Bowl. What to know about today's game in Los Angeles.
Telephone numbers in Luxembourg employ a closed dialling system, whereby all numbers are dialed in the same format whether from within Luxembourg or from abroad. There is no trunk prefix like " 0 ". The incumbent operator employed an open numbering plan with numbers of varying lengths, where a two-digit area identifier is followed by one to ...
The ability for college players to transfer with immediate eligibility means that players ages 20-23, with a few seasons of experience and maturity, approach picking a team from a different ...