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GSM : GSMVoiceCall class

writeDTMF()

Description

Send a DTMF tone over the voice call. A voice call must be active

Syntax

voice.writeDTMF(charToSend)

Parameters

  • charToSend: the DTMF tone to send. Valid options are:
    • numbers from 0 to 9
    • *
    • #
    • letters from A to D

Return

1 for success, 0 for failure

See Also

Reference Home

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