Template:SIP TEST FACT DTMF: Difference between revisions
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<li>DTMF digits echoed back to the sender | <li>DTMF digits echoed back to the sender | ||
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Revision as of 12:49, 9 August 2016
The provider does not fully support reliable transportation of DTMF signals (DTMF tones are treated separately from voice data). There may be different symptoms like
- no DTMF at all
- no DTMF at the beginning of a call
- loss of some DTMF digits in a multi-digit DTMF sequence
- duplication of DTMF digits
- DTMF digits echoed back to the sender