My parents have fibre with Orcon and the phone service is unreliable. Attributable to the router, but made me wonder: how are the various providers delivering phone service at the moment?
My knowledge currently extends to:
Orcon - SIP VoIP via router
Telecom - Copper line
Is the Orcon approach standard across the other major ISPs? Are there other variations - for example is any provider using Chrous ATA voice on the ONT?