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Analog Phones


  • 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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  • Does the C47H / C470 / C475 support OPCAP

    English: Open Platform For Cordless Applications <?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

    The meaning of OPCAP:<o:p></o:p>

    Open Platform For Cordless Applications<o:p></o:p>

    This interface allows using different applications with a cordless telephone.<o:p></o:p>

    The handset Gigaset C47H supports OPCAP.<o:p></o:p>

    The base stations Gigaset C470 / C475 supports OPCAP.<o:p></o:p>

    The support of OPCAP affords you to register the Gigaset M34 USB to the base station Gigaset C470 / C475 and to use its functions. These are among others:<o:p></o:p>

    <o:p> </o:p>

    VoIP with Skype. The PC needs a separate internet connection.<o:p></o:p>

    Remote control from PC programs<o:p></o:p>

    Use of messenger programs like MSN, Yahoo, ICQ, and others.<o:p></o:p>

    Configuration of directories.<o:p></o:p>

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  • Which headsets are compatible?

    The following headsets have been tested with the C47H:<?xml:namespace prefix = o ns = "urn:schemas-microsoft-com:office:office" /><o:p></o:p>

    • Plantronics M40 <o:p></o:p>
    • Plantronics MX100 <o:p></o:p>
    • Plantronics MX150

    A compatibility list of tested headsets can be found on the Internet at

    With a connecting cable 8800-00-61 from GN/Jabra you can use:

    • GN 2200 Mon NC
    • GN 2000 sound tube
    • GN 2000 Mono NC
    • GN 2100 3in1 Micro
    • GN 2100 3in1 Flex NC
    • GN 2200 Duo Flex NC
    • GN 2000 sound tube
    • GN 2000 Duo NC
    • GN 2100 Duo Micro
    • GN 2100 Duo Flex NC


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Gigaset CX475 ISDN - FAQ Topics


  • Audio / Ringer Tones
  • Answering machine
  • C

  • Compatibility / Accessories
  • Call list
  • D

  • Directory / Phone book
  • Display
  • E

  • ECO DECT - Capacity reduction of radiowaves at Gigaset DECT phones
  • F

  • First steps for troubleshooting
  • I

  • ISDN Settings
  • N

  • Notes on Caller ID (CID)
  • R

  • Registering / Deregistering
  • Reset procedures
  • Room Monitor
  • Redial
  • S

  • Settings / Using / Handling
  • U

  • Using behind PABX