FRITZ!Fon C4 – Service - Knowledge Base
Conducting internal calls
If other telephones are also connected to your FRITZ!Box, you can conduct internal calls (that are free of charge) between them. For example, you can use your FRITZ!Fon to call a telephone connected to an analog extension of the FRITZ!Box.
1 Making internal calls
- Press the "INT" key on the FRITZ!Fon.
- Select a telephone.
Note:If you select the option "All internal", all of the telephones connected to the FRITZ!Box will ring and the call is conducted with the party who picks up the telephone first.
- Press the call key (lift receiver).