When is call forwarding from a landline to a mobile phone worthwhile?

When is call forwarding from a landline to a mobile phone worthwhile? In times of home office, mobility, and constant availability, an old feature is making a real comeback: call forwarding. Especially if you’re often on the go for work or personal reasons but still don’t want to miss incoming calls to your landline, forwarding to your mobile phone can be a practical solution.
Why is call forwarding relevant again today?

You might be wondering why it even makes sense to forward calls to another number. Isn’t that feature outdated in the era of smartphones? The answer is: no! There are still plenty of scenarios where landline call forwarding is useful. For freelancers, families, or elderly people, this function is more relevant than ever—after all, no one wants to miss important calls or settle for a voicemail message.
What is call forwarding – a simple explanation
Call forwarding automatically routes an incoming call to another phone number. In most cases, it means forwarding from a landline to a mobile phone. You can easily set this up on your landline phone or via your provider. Depending on the settings, the call can be forwarded immediately, when the line is busy, or when the call isn’t answered.

Table 1: Different types of call forwarding
Type of Call Forwarding | Description |
---|---|
Immediate forwarding | Every call is directly forwarded to another number. |
When busy | Calls are forwarded only if your landline is busy. |
When not answered | Calls are forwarded after a certain period if unanswered. |
When unreachable | Forwarding occurs if the phone is disconnected or out of service. |
Forwarding landline calls to a mobile phone: How it works technically
Setting up call forwarding varies depending on your landline or mobile provider. It’s usually activated with a key code or through your landline phone’s menu. Many modern phone and internet subscriptions allow online management via the customer portal. The table below lists common codes for call forwarding to a mobile phone.

Table 2: Example call forwarding codes (depending on provider)
Situation | Key Combination |
---|---|
Immediate Forwarding | 21TargetNumber# |
When Busy | 67TargetNumber# |
When Not Answered | 61TargetNumber# |
Deactivation | ##21# (may vary by provider) |
Difference between unconditional and conditional call forwarding
With unconditional forwarding, every incoming call is forwarded immediately. Conditional forwarding only applies in certain cases, such as when your phone is busy or unavailable. The right choice depends on when you want to be reachable and how much convenience you need.
When is call forwarding useful in everyday life?
Forwarding your landline to your mobile phone is especially helpful when you’re frequently on the move, don’t want to miss calls, or work across multiple locations. It’s also handy during vacations, while working from home, or if you have technical issues with your landline.

Call forwarding for freelancers & entrepreneurs
If you use a business mobile phone, you can forward calls from your landline automatically to your mobile. This keeps you flexible and prevents missed client calls. It’s also ideal for temporary home office setups or working on the road. Find more tips in our Business Mobile Solutions.
Home office & call forwarding – a perfect match
Many people no longer work permanently in an office. With call forwarding, you stay reachable for business even when working from home—without needing expensive telephone systems.

Emergency readiness & accessibility
In emergencies, being reachable is essential. With the right call forwarding setup, important calls will reach you even when your landline isn’t available.
Call forwarding for elderly people & families
Many elderly people still rely on landlines. If they’re in the garden or out and about, you can set up forwarding to a mobile phone—so they stay connected at all times.
Call forwarding during vacation or abroad
Traveling abroad and don’t want to miss landline calls? No problem with forwarding to your mobile. Note: forwarding costs may apply depending on your provider.

What costs are associated with call forwarding to a mobile phone?
Call forwarding typically incurs two charges: one for the call from the caller to the original number and another for the forwarding to the target number.
Who pays for call forwarding: the caller or the recipient?
The recipient (you) usually pays for the forwarded part of the call. The caller is only charged for the call to the original landline.
Which providers support this function and how do you set it up?






Providers like Wingo, Salt, TalkTalk, and Yallo all offer call forwarding. You can usually activate it via your provider’s online portal or by entering a code on your phone.
How do you activate and deactivate call forwarding on a landline phone?
Depending on your phone model, go through the menu, select call forwarding, enter the target number, and activate the feature. To deactivate, go through the same menu or enter ##21#.
Table 4: Overview of activation methods
Method | Description |
---|---|
Key Combination | Enter directly on the phone (e.g. 21…) |
Phone Menu | Via the display and menu of the landline device |
Online Customer Portal | Manage via your provider’s account |
Customer Service | Call the service line for help with setup |
Alternatives to call forwarding (e.g., simultaneous ringing, voicemail, app solutions)
Instead of forwarding calls, you can use voicemail, simultaneous ringing on multiple devices, or app-based telephony. You’ll find many landline subscription options on comparison platforms like alao.
Security & data protection with call forwarding
When setting up call forwarding, ensure that sensitive data cannot be intercepted. Enter your mobile number only in secure menus and use official service portals.
When is call forwarding legally problematic (e.g., in employment contracts)?
If you’re using a work phone or have specific availability terms in your employment contract, call forwarding can be a grey area. When in doubt, clarify with your employer.
Conclusion: When is call forwarding useful – and when not?
Call forwarding from a landline to a mobile phone is especially useful if you’re on the go, want flexible working options, or simply can’t afford to miss important calls. The cost of forwarding is usually covered by you as the recipient. So be sure to check your provider’s charges. If you have a flat rate, forwarding is often free. Looking for a new subscription? Then the mobile plan comparison on alao is the right place to start.
FAQs – Call Forwarding from Landline to Mobile
A feature that redirects calls from your landline to another number, such as your mobile phone.
During absence, vacation, remote work, or if you want to avoid missing calls.
Via key combination, phone menu, or your provider’s service portal.
Depending on your provider, charges may apply—especially for international calls.
The caller pays the usual fee for the landline call. You pay for the forwarded portion.
Via the phone’s menu or by entering a code (e.g., ##21#).
Yes, many providers offer conditional or time-based forwarding.
Yes, such as voicemail, answering machines, call waiting, or app-based solutions.
Never enter personal data via insecure channels and only manage settings through trusted menus.