Voice API

Send automated calls through our massaging gateway and let a text be read to the receiver. Create advanced voice applications using our Markup Language.

Telephony reinvented

The innovative telephone solutions from sms77 allow you almost endless design possibilities for managing incoming and outgoing calls. Start fully automated conferences, send customers a call with a PIN code, record spoken notifications, create an phone menu to dial via DTMF – your creativity knows no limits.

Numerous languages

The Voice API is multi-lingual und supports many languages and dialects for playback.

    • Danish, Denmark
    • German, Germany
    • English, Australia
    • English, Canada
    • English, UK
    • English, India
    • English, United States
    • Catalan, Spain
    • Spanish, Spain
    • Spanish, Mexico
    • Finnish, Finland
    • French, Canada
    • French, France
    • Italian, Italy
    • Japanese, Japan
    • Korean, Korea
    • Norwegian, Norway
    • Dutch, Netherlands
    • Polnish, Poland
    • Portuguese, Portugal
    • Russian, Russia
    • Swedish, Sweden
    • Chinese (Mandarin)
    • Chinese (Cantonese)
    • Chinese (Taiwan Mandarin)


Let your customers call from us via your own virtual phone number. A simple text can be read to the called one or a comprehensive, interactive call designed through our Markup Language, for example with brakes, queries, recordings etc.

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