Home Forums General Discussion Technical Questions Query on elevator emergency communication system

Hello,

I wanted to inquire if the elevator emergency communication system which in most cases is two-way voice communication, could be a shared channel such as ADSL connection with voice and internet channels, where voice could be used for emergency communication and the internet for monitoring other building system.

Is there a reference to any code or requirement which mandates the use of a dedicated voice-only line for communication?

Thank you.

Regards,

Tapan.