@book{lallement:hal-02781868, TITLE = {{T{\'e}l{\'e}phonie d'entreprise : codage, transport, signalisation, services}}, AUTHOR = {Lallement, Patrick}, URL = {https://utt.hal.science/hal-02781868}, PUBLISHER = {{Ellipses}}, SERIES = {Technosup}, YEAR = {2010}, HAL_ID = {hal-02781868}, HAL_VERSION = {v1}, }