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Verzend DTMF-tonen - Apple iPhone 4 (iOS4)

Bekijk help info

DTMF-tonen zijn de tonen die de telefoon verzendt, als je tijdens een gesprek op de cijfertoetsen drukt. Deze tonen kunnen "begrepen worden" door voice response-systemen, antwoordapparaten en andere apparatuur. DTMF-tonen worden daarom o.a. gebruikt voor telefoonbankingsystemen en om antwoordapparaten op afstand te beluisteren. Volg deze instructie om tijdens een gesprek DTMF-tonen te verzenden.
Deze instructie gaat ervan uit dat je een actief gesprek hebt.

Stap 1 van 1

Normaal gebruik van DTMF-tonen

Druk op toetsen om het numerieke toetsenbord weer te geven.
DTMF-tonen zijn altijd ingeschakeld en je kunt daarom alleen het nummer intoetsen dat je wilt verzenden (bijvoorbeeld de toegangscode van een antwoordapparaat).
De bijbehorende DTMF-tonen worden verstuurd en ze zijn in de luidspreker te horen als tonen met wisselende toonhoogte.

1. Normaal gebruik van DTMF-tonen

Druk op toetsen om het numerieke toetsenbord weer te geven.
DTMF-tonen zijn altijd ingeschakeld en je kunt daarom alleen het nummer intoetsen dat je wilt verzenden (bijvoorbeeld de toegangscode van een antwoordapparaat).
De bijbehorende DTMF-tonen worden verstuurd en ze zijn in de luidspreker te horen als tonen met wisselende toonhoogte.