FRITZ!Box 6840 LTE Service - Knowledge Base

FRITZ!Box 6840 LTE Service

Conducting internal calls

If several telephones are connected to your FRITZ!Box, you can conduct internal calls (that are free of charge) between them. For example, you can use a cordless telephone to call a telephone connected to an analog extension of the FRITZ!Box.

Note:The configuration procedure and notes on functions given in this guide refer to the latest FRITZ!OS for your FRITZ!Box.

1 Conducting internal calls

Configuring a telephone to use the keypad function

The following steps are only necessary if the cordless telephone is not registered with the FRITZ!Box's base station:

Note:If you are using a telephone that is registered with the base station of your FRITZ!Box (for example FRITZ!Fon C5), you do not have to configure it to use the keypad function.

  • Configure the devices so that you can dial special characters (such as * and #) or send keypad sequences (sequences of symbols and digits, such as *121#) with them.

    Note:Many Gigaset telephones can be configured as follows: Select "Operation at a PBX" from the telephone's menu, then select "Dialing options" and enable the option "Dial * and #".

Making internal calls

  • If you want all of the telephones connected to the FRITZ!Box to ring, dial **9 to initiate a broadcast call. You then conduct the call with the party who picks up the telephone first.
    • or, if you would like to call a specific telephone:
  • Dial ** and the internal telephone number of the telephone.

    Example:
    Dial **1 to call a telephone connected to the extension "FON 1".

    Note:You can find the internal numbers of the telephony devices in the FRITZ!Box user interface under "Telephone Book > Internal Numbers".