PROTEL is the PRocedure Oriented Type Enforcing Language. It was orginally used by Bell-Northern Research / Nortel Networks on the DMS product line of switching systems. PROTEL 2026 is a new open-source version of PROTEL that runs on modern MacOS and UNIX / Linux systems, and fully integrates with C/C++, Rust, Python, and Java.
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Updated
Jun 10, 2026 - Python