Re: Problems with voice call.

[Denis Kenzior <denkenz@gmail.com>]

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Hi Marko,

> Hi,
>
> I'm trying to make a voice call with oFono. I'm using Option GlobeSurfer
> ICON 225 HSDPA/UMTS USB as the modem. If I understood correctly voice
> call should be possible with the dbus-messages used below. However, I
> end up with an error "Operation failed".

Operation failed literally means the modem replied with an error of some sort.

>
> $ dbus-send --system --print-reply --dest=org.ofono /
> org.ofono.at.Manager.Create string:"dev:/dev/ttyHS0" string:"at"
> method return sender=:1.540 -> dest=:1.544 reply_serial=2
>    object path "/modem1"

Looks good.

>
> $ dbus-send --system --print-reply --dest=org.ofono /modem1
> org.ofono.VoiceCallManager.Dial string:"+000000000000" string:"default"
> Error org.ofono.Error.Failed: Operation failed

For wrong arguments, the error would be something like InvalidArguments or 
InvalidFormat.

>
> When the second dbus-message is sent the following messages are printed
> by the ofonod:
>
> ofonod[19113]: atd_cb got result: 0
> ofonod[19113]: Final response: ERROR
> ofonod[19113]: Dial callback returned error: (null)

This means that ATD final response was ERROR.  Are you sure your modem actually 
supports voice calls?

Regards,
-Denis