Twinning also rings an external number (mobile phone or Microsoft Teams) when a user's PBX extension is called, so they can be reached on another device.
Overview
Twinning is configured per user. A rule has an active status so you can pause it without deleting it.
What it does
The dial strategy sets how the external device is reached. Fixed-Mobile Convergence (FMC) extends PBX features like transfer and hold to the mobile device, and applies to mobile twinning that uses a GSM-capable strategy.