AMA

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AMA

(Automatic Message Accounting) The recording and reporting of telephone calls within a telephone system. It includes the calling and called parties and start and stop times of the call. When performed in a tandem switch, it is known as "Central Automatic Message Accounting" (CAMA). When done in an end office switch, where most billing is handled today, it is known as "Local Automatic Message Accounting" (LAMA). Also known as "Call Detail Reporting" (CDR).
References in periodicals archive ?
The devices will be made into flexible active matrix arrays to drive proof of concept Organic Light Emitting Diode (OLED) displays.
With 61 papers, the topics include film growth, defects and transport, solar cells, characterization, alloys, structural properties and solar cells, novel applications, thin film transistors, microcrystalline silicon, film growth and characterization, crystallization techniques, sensors, transistors and active matrix arrays.
PARC also has been innovating in large area electronics for more than 25 years, creating a portfolio of foundational technologies including: amorphous and polycrystalline silicon; inkjet printing of electronic materials; fabrication of flexible backplanes for displays; printed organic electronics; fabrication of active matrix arrays for AMLCD and x-ray detectors; industrial prototype development; and transfer of new technologies to commercial manufacturing enterprises.