Protel stands for "Procedure Oriented Type Enforcing Language". It is a programming language created by Nortel Networks and used on telecommunications switching systems such as the DMS-100. Protel-2 is the object-oriented version of Protel.
PROTEL languages were designed to meet the needs of digital telephony and is the basis of the DMS-100 line of switching systems PROTEL is a strongly typed, block-structured language which is based heavily on PASCAL and ALGOL 68 with left-to-right style of variable assignment, variable-sized arrays, and extensible structures. The designers of PROTEL significantly extended PASCAL of the day by adding external compilation and extending the data structures available in the language.
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- “Experience with a modular typed language: PROTEL”, ICSE '81 Proceedings of the 5th international conference on Software engineering
- Dini, P.; Boutaba, R.; Technologies, L. Logrippo ; sponsored by IEEE Communication Society, Centre de recherche informatique de Montréal ; with the participation of University of Ottawa, Université de Montréal, Bell Laboratories, Lucent (1997). Feature interactions in telecommunications networks IV. Amsterdam: IOS Press. p. 23. ISBN 978-9051993479.
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