July 2, 2018 - 12:40pm, 1761 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.
And how about configuring 0 volume for the audio mode that you are using with AT^SNFO command before answering the call and then increasing the volume after sending DTMF?
BTW DTMF tones are not genrated by the sending device but by network infrastructure.
Thank you, apologises but it's actually the opposite direction of speech, the mic, which I have a problem.
I'm using AT+CMUT=0/1 to turn the mic on and off, but I have to be on a call to use, so there's a short amount of noise/mic before it's turned off. Is AT^SNFI normally used to disable the mic before answering?
I think that in this case you can use AT^SNFI command to set <inCalibrate> parameter to 0 as default for the audio mode that you are using. And then you can change it during the call.
Or you can also, which can be even better, switch audio modes during the call (AT^SNFS command). There are a few predefined modes that you can modify for your *****, one of which is dedicated to DTMF transmission.
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