The Innovation, Science and Economic Development Canada (ISED) has released Part V of the following document:
Compliance Specification CS‑03, Part V, issue 9, amendment 2, Requirements and Test Methods for Magnetic Output From Handset Telephones for Hearing Aid Coupling and for Receive Volume Control.
Part V of this document includes the new “technical requirements for handset telephones,” including digital handset telephones and analogue, in order to be hearing aid compatible (HAC). Cellular telephones and secure telephone units, for instance, do not fall under these guidelines to be HAC. Please refer to the document for specifications.