The FRITZ!Box is Germany’s most popular router, found in over 40% of German households. Made by AVM, these routers double as full-featured phone systems for landline connections. Unlike mobile phones that rely on GSM codes, the FRITZ!Box handles call forwarding entirely through its web interface, giving you far more control over when and how calls get redirected.
Why FRITZ!Box Forwarding Is Different
With a mobile carrier, you’re limited to four basic forwarding conditions: all calls, no answer, busy, and unreachable. The FRITZ!Box goes well beyond that. You can set forwarding rules based on the time of day, the day of the week, specific caller numbers, or even which phone line receives the call. This makes it a great match for home offices and small businesses that need flexible call routing.
Step-by-Step Setup Through the Web Interface
All FRITZ!Box forwarding is configured through the browser-based admin panel. No apps or special software needed.
1. Open the FRITZ!Box Interface
Type fritz.box or 192.168.178.1 into your browser’s address bar. Enter your FRITZ!Box password when prompted. If you’ve never changed it, check the sticker on the bottom of your router.
2. Go to Call Forwarding Settings
Navigate to Telephony in the left menu, then click Call Handling (on German firmware: Telefonie > Rufbehandlung). Select the Call Forwarding tab at the top.
3. Create a New Forwarding Rule
Click New Call Forwarding (Neue Rufumleitung). You’ll see several options:
- Calls to: Select which phone line or number this rule applies to. You can pick a specific landline number, all numbers, or a particular connected phone.
- Forward to: Choose “Destination number” and enter the number you want calls sent to (for example, your mobile or your Safina number).
- Condition: Select when forwarding activates:
- Always (all calls get forwarded)
- When busy (only if the line is occupied)
- After X rings / no answer (after a set number of rings)
- Time-based (only during specific hours)
4. Set Up Time-Based Rules (Optional)
If you select time-based forwarding, a schedule grid appears. Click the time blocks when you want forwarding to be active. For example, you could forward calls to Safina every weekday evening from 6 PM to 8 AM and all day on weekends.
5. Save and Test
Click OK to save. The rule takes effect immediately. Test it by calling your landline from another phone to confirm the forwarding works as expected.
Forwarding by Caller Number
One of the FRITZ!Box’s strongest features is caller-based routing. In the Call Handling section, you can create rules that forward calls from specific numbers to specific destinations. For instance, you could forward calls from your most important clients directly to your mobile while sending all other calls to Safina.
To set this up, go to Telephony > Call Handling > Call Forwarding, create a new rule, and under “Calls from,” select “A specific number” and enter the caller’s phone number.
Managing Multiple Phone Lines
Many FRITZ!Box setups have multiple phone numbers (for example, one for personal use and one for a home office). You can create separate forwarding rules for each number. This means your personal line might forward to voicemail while your business line forwards to Safina, all handled by the same router.
Troubleshooting
- Forwarding doesn’t activate: Make sure the rule is enabled (green checkmark in the forwarding list). Also verify that the destination number includes the area code.
- Calls go to voicemail instead of your forwarding destination: Your phone provider’s voicemail may have a shorter timeout than your FRITZ!Box no-answer setting. Contact your provider to extend the voicemail delay, or set the FRITZ!Box to forward after fewer rings.
- Time-based rules seem off: Check that the FRITZ!Box clock is correct. Go to System > Time to verify. The clock syncs automatically via the internet, but a wrong time zone setting can throw things off.
- Cannot reach fritz.box in the browser: Try
192.168.178.1instead. If that doesn’t work, make sure you’re connected to the FRITZ!Box network (not a mobile data connection). - “Number not valid” error: Enter the destination number with the full area code, for example
069 12345678or+49 69 12345678. The FRITZ!Box needs the complete number to route calls correctly.
Tips for Using Safina with Your FRITZ!Box
The FRITZ!Box and Safina work well together. Set up a conditional forwarding rule (no answer or busy) with your Safina number as the destination. This way, your landline rings first, and if nobody picks up, Safina answers, talks to the caller, and sends you a summary.
For the best experience, use time-based forwarding to route calls to Safina outside business hours. You can configure this in just a few clicks through the web interface, no GSM codes required.
Check out the setup guide to get your Safina number, then enter it as the forwarding destination in your FRITZ!Box.
Frequently Asked Questions
Can I set up time-based call forwarding on a FRITZ!Box?
Yes. When creating a forwarding rule in the web interface, select the time-based option and define the hours and days when forwarding should be active. You can set different schedules for weekdays and weekends. Outside those hours, calls ring your connected phones normally.
Does call forwarding on a FRITZ!Box cost extra?
The FRITZ!Box itself doesn’t charge anything for the forwarding feature. However, the forwarded call is treated like a regular outgoing call from your landline, so your phone provider charges the normal rate for calls to the destination number. If you’re forwarding to a German mobile number, that’s a landline-to-mobile rate. Check your provider’s price list for details.
Can I forward only specific callers on a FRITZ!Box?
Yes. The FRITZ!Box lets you create rules that only apply to calls from certain phone numbers. You can also create rules for anonymous callers (calls with no caller ID). This is useful if you want to route VIP callers differently from everyone else.
Can I use Safina with my FRITZ!Box?
Yes. Add a forwarding rule in the FRITZ!Box web interface with your Safina number as the destination. Use the “no answer” or “busy” condition so your phone rings first and Safina only picks up when you’re not available. For after-hours coverage, use time-based forwarding to send all calls to Safina outside your working hours.