# Dtmf

**URL:** <https://forum.sierrawireless.com/t/dtmf/1644>\
**Category:** Open AT\
**Created:** [October 12, 2007, 6:43am UTC](https://forum.sierrawireless.com/t/dtmf/1644 "2007-10-12T06:43:01Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![LOGRUSUA](https://avatars.discourse-cdn.com/v4/letter/l/df705f/32.png) [@LOGRUSUA](https://forum.sierrawireless.com/u/LOGRUSUA)\
**Post date:** [October 12, 2007, 6:43am UTC](https://forum.sierrawireless.com/t/dtmf/1644/1 "2007-10-12T06:43:01Z")

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Hello,

How to use DTMF adl\_audioDTMFPlay(…)  
How to pass package from a few characters by duration 70 ms and pauses 70 ms between them? To pass not on speaker and in a network (ADL\_AUDIO\_VOICE\_CALL\_TX)

Thank you!