Answers to
frequently asked questions

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  • Base reset
    • Unplug the power-supply unit from the socket.
    • Press and hold down the paging key on the base station.
    • Plug in the power-supply unit again.
    • Keep the paging key on the base station pressed.
    • Release the paging key after 3 seconds.

    PLEASE NOTE! The entire contents of the memory will be deleted. All portable handsets will be deregistered. The system code will be reset to 0000.

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  • Notes on Caller ID (CID)

    By default, the number of the caller is shown in the display of your Gigaset telephone. You do not have to make any other settings on your Gigaset telephone. However, if the caller's number is not displayed, this can be due to the following:

    - You have not ordered CID from your network provider or
    - Your telephone is connected through a PBX that does not transmit all information.

    Is your telephone connected through a PBX/gateway?
    You can establish this by checking for an additional device connected between your telephone and house connection, e.g., a PBX, gateway etc.
    In most cases, simply resetting this device will remedy the situation:
    - Briefly disconnect the power plug of your PBX.
    - Re-insert the plug and wait for the device to restart.

    If the caller number is still not displayed:
    Check the CID settings of your PBX and activate this function if necessary. In the user guide for the device, search for the term "CID" (or an alternative term such as "phone number transmission", "caller ID", ..).

    If necessary, contact the device manufacturer. If this does not resolve the problem, it is possible that your network provider does not support the CID service for this number.

    Have you ordered the CID service from your network provider?
    Check whether your provider supports Caller ID (CID) and that the function has been activated for you. If necessary, contact your provider.

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  • For which purposes can I use the integrated bluetooth functionality?

    The bluetooth functionality was integrated to

    • use the handset in combination with a cordless bluetooth headset
    • copy telephone book entries (as VCards) via bluetooth
    • synchronize contacts from your PC (surrogate for data cable)
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  • Bluetooth accessory can not be registered to the S68H handset

    Please check, whether the Bluetooth accessory supports one of the

    given protocols, which are supported by the Gigaset handset:

    • headset profile (for Bluetooth headsets)
    • serial port profile (for PC connection)
    • OBject EXchange Profile (OBEX)



    the Bluetooth accessory was installed already, please delete the

    registration from the handset:

    • Bluetooth Menu
    • Known Devices
    • Select the accessory, e.g. a headset
    • Options
    • Delete Entry

    If it is again not possible to register the accessory to the handset, please check, whether the accessory supports a reset-function, and execute it. Please pay attention that perhaps previous settings will be deleted in the accessory.


    If you would like to use a headset already registered to another device (e.g., to a mobile phone) with your desktop phone, please deactivate this connection before you start the registration process.

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  • What has to be noticed in case of an incoming call?

    An incoming call will also be signalized at the bluetooth headset and can immediately be accepted by pressing the 'Accept button' (see manual of your bluetooth headset producer).

     If you accept the call with your Gigaset S68H device, and afterwards want to transfer the call to your headset, you also just need to press the accept button at your headset.

    In this case, the transfer of the call could take between 3 and 5 seconds. Within this period you should avoid to press the accept button twice, because you possibly could hang up the call.

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  • How man bluetooth devices can be managed by the Gigaset S68H?

    You are able to register up to 6 bluetooth devices, but just one bluetooth headset.

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  • Does the Gigaset S685/S685 support OPCAP ?

    The meaning of OPCAP

    Description: Open Platform For Cordless Applications

    The OPCAP interface allows you to control different applications with an Gigaset telephone. Therefore a registration of the device which shall become controlled has to be registered to the Gigaset base station.

    The handset Gigaset S68H is able to display OPCAP menus.

    The Base station Gigaset S680 / S685 are supporting the OPCAP interface.

    Example: With OPCAP you are able to register the Gigaset M34 USB at the Gigaset S680 / S685 base station, to use the M34 functions. The supported functions are:

    VoIP calls through Skype (separate internet connection necessary)

    Remote control of PC programs

    Using of messenger programs such as MSN, Yahoo, ICQ, AOL and Skype.

    Configuration of the phone book

    Other examples you can find here:

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Gigaset SX680 ISDN - FAQ Topics


  • Audio / Ringer Tones
  • B

  • Bluetooth
  • C

  • Compatibility
  • Charging
  • Call list
  • D

  • Display
  • Directory / Phone book
  • E

  • ECO DECT / Ecology
  • F

  • First steps for troubleshooting
  • I

  • ISDN Settings
  • N

  • Notes on Caller ID (CID)
  • R

  • Room Monitor
  • Reset procedures
  • Registering
  • S

  • Settings / Using / Handling
  • U

  • Using behind PABX