FRITZ!Box 7330 Service - Knowledge Base

FRITZ!Box 7330 Service

Telephone does not ring when you receive a call

Although you can make calls over the FRITZ!Box, one or more of your telephones sometimes do not ring or never ring when you receive a call to a landline number and/or Internet telephone number.

Important:Some of the settings described here are only displayed if the advanced view is enabled in the user interface. The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS.

Simply proceed as described below. After each measure, check whether the issue persists.

1 Number of calls via a DECT repeater is limited

When you receive a call, only two of the telephones located in the coverage area of a DECT repeater from a different manufacturer ring. If you are using a FRITZ!DECT Repeater or a FRITZ!Box in DECT repeater mode, up to five telephones ring at the same time.

2 Disabling the do not disturb function, call blocking and call through

The do not disturb function, call blocking, call diversion or call through may be preventing the telephone from ringing. Disable these functions in the FRITZ!Box:

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephony Devices" in the "Telephony" menu.
  3. Click the button (Edit) for the respective telephone.
  4. Click on the "Do Not Disturb" tab, disable any "Do Not Disturb" settings, and click "OK".
  5. Click "Telephony" and then "Call Handling"; delete any call blocks that may be present.
  6. Click on the "Call Through" tab, disable call through and click "Apply".

3 Disabling "DECT Eco"

The following steps are only necessary if the issue occurs with a cordless telephone:

  1. Click "DECT" in the FRITZ!Box user interface.
  2. Click "Base Station" in the "DECT" menu.
  3. Disable the option "DECT Eco" in the "Radio Field Strength" section.
  4. Click "Apply" to save your settings.

If the telephone now rings, then the DECT connection to the telephone was interrupted. All devices that emit radio waves are possible sources of interference. Examples of these are other DECT base stations, baby monitors, mobile telephones and television antennas. If the telephone does not receive the "wake up" signal from the FRITZ!Box in time and as a result does not wake up from standby mode, moving the telephone to a different location may help.

4 Connecting the telephone directly to the FRITZ!Box

The following steps are only necessary if the telephone is connected to a PBX that is connected to the FRITZ!Box:

  • Disconnect the telephone from the PBX and connect it directly to the FRITZ!Box.
    • If the telephone now rings, then the PBX is incorrectly configured. The manufacturer can provide you with instructions on configuring the PBX.

5 Checking whether you can make outgoing calls over your landline

The following steps are only necessary if the telephone does not ring when a landline number is called:

  • Dial *111# and then a telephone number (for example *111#03012345 instead of 03012345).

    Note:*111# forces the number to be dialed using the landline. If calls can only be made when you do not dial *111# before the number, then they are made via Internet telephony (VoIP).

6 Assigning telephone numbers to a telephone

  1. Click "Telephony" in the FRITZ!Box user interface.
  2. Click "Telephony Devices" in the "Telephony" menu.
  3. Click the button (Edit) for the respective telephone.
  4. Configure the telephone so that it reacts to incoming calls to the desired number: Enter the number under "Outgoing calls" or under "Incoming calls", or enable the option "React to all numbers".
  5. Click "OK" to save the settings.

7 Replacing the DSL splitter

The quality of ADSL splitters used in Italy differs immensely and they often do not comply with prescribed technical standards. In such a case, the signal quality of the analog telephone signal being transmitted to the FRITZ!Box is not sufficient and various errors result. The FRITZ!Box's tolerance to poor signal quality depends on the model. Therefore, not all FRITZ!Box models may experience the issue to the same degree. According to our experience, the splitter Hama 7639628, which is available on the Italian market, reliably fulfills the prescribed technical standards.

8 Having your numbers checked

If the telephone still does not ring when you receive incoming calls to an Internet telephone number although the Internet connection and Internet telephone number are correctly configured, your Internet telephony provider is experiencing technical difficulties:

Important:After porting your telephone number (for example after switching to an IP-based line), you can often make calls with the number immediately. However, you cannot receive calls to this number for one or two more days because the telephone number is not completely ported until then.

  • Contact your Internet telephony provider and have your number checked.