Outgoing calls are possible to make in two modes:
AUTO - the
        user is not forced to decide whatever is better to save money and
        having better quality, the phone already knows because the phone has
        the settings of the user and the state of all connections.
MANUAL - the
        user may choose personally what option to use to perform the
        call.
By default the AUTO mode is enabled. To change to
    MANUAL mode, please refer to Call
    Selection.
| ![[Note]](../images/note.png) | Note | 
|---|---|
| Contact your system administrator to enable the ability to change these modes. | 
Once dialled the desired number in the Address bar or having selected it via the Address book (Contacts) the user may place a call.
Using the AUTO call mode, the user is not
      forced to decide whatever is better to save money and having better
      quality, the phone already knows because the phone has the settings of
      the user and the state of all connections.
Here is the simplified algorithm used in this mode:
Checks the evaluation of the quality of internet connection, to verify the possibility to make a VoIP call. If the quality is good, it makes a VoIP call, else, it passes to the next step.
Checks the activated mode (Callback or
          Post Selection).
If the Post Selection mode is active,
              it places a GSM call in Post Selection
              mode.
If the Callback mode is active and
              Internet connection is present, it orders a
              Callback GSM call via Internet
              connection..
If the Callback mode is active and NO
              Internet connection, a Blind Callback is
              performed.
| ![[Note]](../images/note.png) | Note | 
|---|---|
| 
 | 
Once dialled the desired number in the Address bar or having selected it via the Address book (Contacts) the user may place a call.
Using the MANUAL button the user may choose personally what option to use to perform the call.
Let's check the fees for each call.
VoIP - the call is totally free, apart the
          cost of Internet connection, the user must check related fees to
          avoid to overflow the threshold provided by the carrier.
Post Selection - the call may be free if it
          is supposed that the SIM has a special contract to save money. This
          is option is available if:
The GSM network must be enabled;
"Postselection" must be enabled;
"Postselection" number must be set.
Callback - should be totally free for the
          user of the phone. This is option is available if:
The GSM network must be enabled;
The Abilisphone must have a data connection to Abilis;
"Callback" must be enabled.
Blind Callback - should be totally free for
          the user of the phone, but the user doesn't reach directly the final
          destination, he must be connected to own firm operator. This is
          option is available if:
The GSM network must be enabled;
"Callback number" must be set;
"Blind Callback" must be enabled.