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Telephony

What are value-added services / premium services?
Premium services are value-added services or paid numbers/short numbers.  These can be calls, SMS or MMS through which you receive specific information ...
Fri, 17 Sep, 2021 at 2:15 PM
Answering Machine / Mail Box
Calls that are not answered will be forwarded to your mailbox.  You will be informed by SMS when a caller has left a message. In Switzerland, you can check...
Fri, 17 Sep, 2021 at 2:22 PM
How can I activate Visual Voicemail on iOS and Android?
To activate voicemail, send an SMS with the text VVM On to the number 935.  After that, restart the smartphone so that voicemail is activated.
Fri, 17 Sep, 2021 at 2:25 PM
How can I enable Wi-Fi Calling / WLAN telephony on iOS and Android?
If your device supports the feature, you can usually find Wi-Fi Calling as an option in the call settings, or in the network settings.  Activate Wi-Fi C...
Fri, 17 Sep, 2021 at 2:30 PM