While there is no limit to how long your public conference line remains open, our phone infrastructure provider, Twilio, limits single phone call connections to 4 hours. This means that for meetings running more than four hours, you'll need to connect a new bridge line during your meeting.
To help with making that handoff smoother, there is now a Meeting Coach message that prompts you to connect a new line when a public conference bridge has been connected for more than 3 hours:
Clicking the button initiates a new bridge and sets the bridge's initial state to muted in the public conference to avoid feedback.
Once the new bridge is connected, check to ensure the connection is un-muted in your internal conference service (such as Zoom, Webex, or Google Meet). When that is complete, simply click the 'Disconnect Duplicate Bridges' button to complete the handoff.