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The technical specifications of the FRITZ!Box 7510 at a glance.

Callers hear a busy signal instead of a ringing tone if a call is already being conducted via FRITZ!BoxCallers hear a busy signal instead of a ringing tone if a telephone call is already being conducted via the FRITZ!Box.Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.1 Configuring the FRITZ!Box Click "Telephony" in the...

Application (e.g. SSH) occasionally loses its connection to remote sites on the internetThe internet connection of a single application is cleared after about 15 minutes, although you can open web pages on the same computer at the time the error occurred. This issue occurs with SSH (Secure Shell) or Telnet connections to remote sites on the internet, for example. Cause To guarantee the security...

Use the FRITZ!Box's automatic update function to always keep FRITZ!OS up do date.

Updating the FRITZ!OS of FRITZ!PowerlineThere are several ways to install the latest FRITZ!OS for your FRITZ!Powerline adapter - either quickly and easily with one of the two "online update" functions, or manually if you cannot perform an online update: Online update using the FRITZ!Box user interface Online update using the FRITZ!Powerline user interface Manual update using the FRITZ!Powerline...

Transferring telephone callsYou can transfer telephone calls to an external telephone number or to another telephone that is also connected to the FRITZ!Box.Requirements / Restrictions FRITZ!App Fon does not support transferring calls to another telephone. Note:All instructions on configuration and settings given in this guide refer to the latest FRITZ!OS for the FRITZ!Box.1 PreparationsThe...

Wi-Fi connection is only established with WPA2 instead of WPA3A notebook, smartphone, or other wireless device only establishes Wi-Fi connections to the FRITZ!Box with WPA2 although "WPA2 + WPA3" was selected as the Wi-Fi encryption in the FRITZ!Box.Simply proceed as described below. After each measure, check whether the problem is solved.Note:All instructions on configuration and settings given...