Power at home
The phone hub, router, internet equipment and Wi-Fi need power. A UPS can help for a limited time; it does not guarantee that your internet service or provider stays available.
A house phone you understand
Know what keeps
the calls connected.
Doorman runs on your home computer and network. Outside calls also depend on your phone provider. Plan for those connections before treating it as your household’s dependable line.
Phone FAQ
What happens if the power or internet goes out?
Your phone runs on your home equipment and network. Outside calls stop if the phone hub, router, internet connection or provider cannot carry them. Room2Room calls still need powered handsets, the phone hub and a working local network.
Backup power needs to cover the equipment your call uses. Keep another way to reach help during an outage. Cloud backups store your phone’s data; they do not supply telephone service or battery backup.
How do I set up emergency calling?
Emergency calling is a provider service, not something a Doorman account or cloud backup supplies. Confirm support for your location, enable it with your provider, register the correct address and follow the provider’s test procedure before relying on it. Keep another way to reach help during an outage.
Do not dial 911 to test. Follow your provider’s documented non-emergency testing procedure. Read the emergency-calling setup checklist ↗
A working path
Room2Room uses your local system. Calls to regular outside numbers need a functioning internet path and configured phone service.
A separate fallback
Keep another means of making an urgent call during setup or outages. A cloud backup stores data; it supplies neither telephone service nor battery power.
What happens during an outage?
| Interruption | Effect | What to plan |
|---|---|---|
| Home power fails | The phone hub, router and Wi-Fi equipment stop unless separately powered. A charged handset alone cannot replace them. | Backup power has to cover the equipment the call needs. Keep another way to reach help. |
| Internet connection fails | Ordinary provider calls cannot use the home’s broken internet path. Room2Room can keep working if the phone hub, handsets and local network remain available. | Your provider may offer a separately configured fallback; Doorman does not promise one automatically. |
| Handset Wi-Fi or the phone hub fails | The affected handset cannot reach the phone system, or Doorman cannot handle calls on that phone hub. | Check the local equipment and configuration. Internet access alone does not restore the local phone path. |
| Phone provider is unavailable | Outside calls on that provider can fail while the local phone system remains running. | Check provider status and configured routing. A second provider requires its own setup and verification. |
This describes the architecture, not a measured outage-duration or battery-runtime guarantee. Backup power and any alternate connection are separate purchases/configuration.
Emergency calling needs its own setup.
Emergency service comes from the configured phone provider. Buying hardware, creating a Doorman account, registering a SIP trunk or paying for backups does not by itself enable it.
- Confirm that the provider supports emergency service for your number and location, and enable it with the correct service address.
- Wait for the provider to show the number as active/ready for emergency service. Make sure the phone system presents the enabled number and uses the intended provider route.
- Follow that provider’s non-emergency test procedure from the handsets you plan to use, including any restricted child handset. For Telnyx, its guide specifies 933 after activation and an address readback. Do not dial 911 to test.
- Recheck the address and routing after moving the equipment, transferring the number or changing provider configuration. Keep another route to help during an interruption.
These are setup requirements, not evidence that your household’s emergency path has been tested. Our October 28 inspection checked versions and provider registration, not an emergency call or address readback.
Backups help you recover. They don’t keep the line alive.
A saved configuration can help rebuild a failed phone hub. Restoring it still requires working equipment, network access, valid provider credentials and a check of the restored phone routes. Hosted backup storage is separate from outside phone service and backup power.
After a restart or restoration, check local and provider registration, both directions of audio, your front-desk rules and ordinary incoming/outgoing calls. Follow the provider’s emergency verification procedure separately.
Reviewed October 28, 2026 against the project’s documented call path and provider guidance. Provider support, fees and procedures vary by location and account.