Hi Kai Vehmanen,

[email protected] wrote:

> not later, but as part of standard call setup. E.g. on ISI,
> CTM is a property of a voice call. And this makes sense as
> TTY calls _are_ essentially voice calls, with just a bit
> indicating to the network that the voice circuit should be
> free of any transcoder/audioprocessing/etc that is not
> compatible with CTM. And this is negotiated as part of
> standard call setup (same way as supported codecs).
> 

I agree but ofono_voicecall_tty_notify is to inform the
ME(MO originated ME) that the call is accepted as a TTY call on
the remote side. 

Regards,
Jeevaka
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