AVM Content
Knowledge Base
- Number of ISDN devices and supported service indicators
- Using the FRITZ!Box on an ISDN BRI
- Configuring an ISDN telephone in the FRITZ!Box
- Using an ISDN telephone system with the FRITZ!Box
- Connecting the FRITZ!Box with the DSL and telephone line (analog / ISDN)
- Telephone connected to FRITZ!Box is dead and/or telephone system indicates a malfunction
- Telephone does not ring when configuring it in the user interface
- Conducting internal calls
- Entering landline numbers in FRITZ!Box
- Assignment of cables, adapters, and sockets
- Telephone does not ring when you receive a call
- Telephone connected to FRITZ!Box rings, but there is no incoming call
- Picking up a call from an answering machine or a different telephone (pickup)
- Callers do not hear busy signal when a call is already being conducted via FRITZ!Box
- Wrong outgoing call number is used for some calls