M35 send/receive voice through UART

Hello,

Is there an option to send and/or receive voice as data packets through the UART interface (COM-port)?

For instance, if audio is not supported what is the command AT+QSFR (Preference Speech Coding) then for?

Thanks in advance!

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Yes, but I don’t know whether you want the function of recording or the function of storing audio files. You can refer to the documents I sent you. One document is about recording and broadcasting, and the other document is about transferring MP4 files

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Good day! could you please duplicate the information for me too, how can this action be implemented? I am currently working on the implementation of playback of a recorded audio file during an outgoing call to a subscriber (autoinformer), I would like to know how best to implement it - to transmit an audio stream or you can transfer an audio file to a modem so that it is played by the interlocutor after picking up the handset. the M35 modem.