Re: Making a phone call with GNOME

[Aleksander Morgado <aleksander gnu org>]

Hey!

> Firstly, there are only two existing free GSM middleware frameworks:
> freesmartphone.org¹ (FSO) and oFono².  FSO is actually a whole
> smartphone middleware, including not just telephony but contacts,
> alarms, audio, battery and so on.  We are explicitly targetting the
> GNOME platform which already provides a lot of (all of?) what FSO does.
> We cannot use FSO or else we would conflict with our goal of building on
> the GNOME platform.  Hence, we must use oFono.

A third option that fits well within GNOME is ModemManager. It
supports voice call management as well since some time ago:
  
https://www.freedesktop.org/software/ModemManager/api/latest/gdbus-org.freedesktop.ModemManager1.Modem.Voice.html
  https://www.freedesktop.org/software/ModemManager/api/latest/gdbus-org.freedesktop.ModemManager1.Call.html

Not saying it's a direct replacement of oFono in this area though,
oFono is likely more mature in all voice related operations. But
ModemManager voice support has been used for some time in several
professional setups, including trains and cars.