[maemo-developers] Muting the ring tone on incoming call on N900

[From: Miko Kiiski]

Hi!

I'm trying to build an application that mutes the ring tone that is played
when I receive a phone call. I have been browsing through the documentation
and trying to find the dbus call for this purpose using dbus-monitor, but up
til now, have had slim success.

Thus far I have tried the following:

I've tried to call the org.maemo.Playback.Manager
/org/maemo/Playback/Manager org.maemo.Playback.Manager.RequestMute dbus
method with the argument set to true. I have read the documentation from
http://wiki.maemo.org/Dialer, and AFAIK it this should do just what I want.
However if I call that method, nothing happens. Here is the command I've
used:

dbus-send --session --type=method_call --print-reply
--dest=org.maemo.Playback.Manager /org/maemo/Playback/Manager
org.maemo.Playback.Manager.RequestMute boolean:true                       

Reply:
method return sender=:1.2 -> dest=:1.105 reply_serial=2

After trying the approach above I tried to find something by monitoring
dbus. I noticed that there is one interesting call made:

method call sender=:1.74 -> dest=com.nokia.HildonSVNotificationDaemon
serial=73 path=/com/nokia/HildonSVNotificationDaemon;
interface=com.nokia.HildonSVNotificationDaemon; member=StopEvent
   int32 1

I tried to call this method with dbus-send, but it had no effect either.
Here's the dbus-send command I used:

dbus-send --session --type=method_call --print-reply
--dest=com.nokia.HildonSVNotificationDaemon
/com/nokia/HildonSVNotificationDaemon
com.nokia.HildonSVNotificationDaemon.StopEvent int32:1

Reply:
method return sender=:1.21 -> dest=:1.104 reply_serial=2

I have not found any other methods calls from the dbus-monitor logs and have
not got any further ideas on what to try. Has anyone been successful at
achieving this kind of behavior?

Cheers,
Miko Kiiski

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