To connect landline to cell phone, the most reliable documented method is call forwarding from the landline or carrier side, not a physical adapter or cable.
Forward landline calls to your cell phone
The most reliable way to connect your landline number to your cell phone is to contact your landline provider and ask them to set up call forwarding. This method works regardless of what cell phone you use, because the forwarding happens on the carrier side. Your provider can configure all incoming calls to your landline number to ring on your mobile device instead. If you want to set up landline phone service and then forward calls to your cell, this is the approach to confirm with your carrier first.
Set up call forwarding on iPhone
If you have an iPhone with GSM cellular service, you can set up call forwarding directly on the device. Apple’s support documentation provides the following steps:
- Open Settings.
- Tap Apps.
- Tap Phone.
- Tap Call Forwarding.
- Turn on Call Forwarding.
- If your iPhone has Dual SIM, choose the line you want to forward from under SIMs.
- Tap Forward To, enter the destination cell phone number, then tap Back.
When call forwarding is active, the Call Forwarding icon appears in the status bar. For CDMA service, Apple says to contact your carrier to set up forwarding. Apple says you must be in range of the cellular network when setting up forwarding, or calls won’t be forwarded. Conditional forwarding options (such as forwarding when busy or unanswered) depend on carrier support.
Set up call forwarding on Android
Android call forwarding menus vary by phone app and carrier, so the exact path may differ. The general documented approach is:
- Open the Phone app.
- Tap Settings or Call settings.
- Tap Call forwarding.
- The forwarding options shown are Always forward, When busy, When unanswered, and When unreachable. Choose one.
- Enter the forwarding number and tap Turn on or the equivalent enable button.
Because the menu labels and availability depend on your device and carrier, check your phone app’s own help or your carrier’s documentation for the exact steps. If you want to use a landline phone without a landline, forwarding your landline number to your cell is the documented method to achieve that.
Troubleshooting call forwarding issues
iPhone troubleshooting
If call forwarding does not work on iPhone, confirm the phone is in cellular range when setting it up. If the iPhone uses CDMA service, forwarding setup must come from the carrier. Conditional call forwarding depends on carrier support, so if the line is busy or out of service, the carrier must provide setup details.
Android troubleshooting
Because the menu path varies by device and carrier, check the phone app’s own help or carrier documentation for the correct labels and options. If forwarding options are missing, your carrier may not support them or may require you to enable them on their end.
General troubleshooting
Verify the forwarding number is correct and test the connection by calling your landline from another phone. If you are trying to keep my landline phone number without service, call forwarding through your carrier is the documented way to keep using that number on your cell.
Frequently asked questions
Can I connect a landline phone to a cell phone with a cable?
If a product claims to do this, you would need to check that product’s own support documentation for compatibility.
Will forwarding landline calls to my cell phone cost extra?
Costs depend on your landline provider and your cell phone plan. Some carriers include call forwarding in their basic service, while others charge a monthly fee or per-minute rates. Contact your provider to confirm any charges before setting up forwarding.
Does call forwarding affect call quality?
Call quality on forwarded calls depends on your cellular signal strength. If you have a weak signal, you may experience delays, dropped calls, or lower audio quality. The landline connection itself does not improve or degrade the cell network’s performance.
What if my carrier does not support call forwarding?
If your landline provider does not offer call forwarding, you may be able to use a virtual phone service that provides a landline number that rings on your cell phone. These services typically require a monthly subscription and a separate number, rather than forwarding your existing landline number.
