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Disable audio before answering (BGS2-W) | Telit Cinterion IoT Developer Community

July 2, 2018 - 12:40pm, 1901 views

Does any one know of an AT sequence that disables the speaker, or zero volume, before a call is answered?

AT^SNFV=0 only seems to work once a call is answered.

I need to enter a DTMF sequence before enabling the speaker.