Relation of Erlang to telco switching is somewhat opposite than what most people believe. Ericsson's stored program switches do not run on Erlang, but use execu

Relation of Erlang to telco switching is somewhat opposite than what most people believe. Ericsson's stored program switches do not run on Erlang, but use execution model enforced by hardware that undeniably was inspiration for Erlang. Other manufacturers used either some traditional mix of C(++) and assembly or got on the CCITT/ITU bandwagon of CHILL ("CCITT High Level Language"), which is combination of C/BLISS style low level execution model with Algol/Pascal syntax and COBOL-like verbosity with some extent of native support for threading and coroutines.