The Start() method

Start ();

If the outgoing call has not yet been started, start it.

Applicable only if state is MM_CALL_STATE_UNKNOWN and direction is MM_CALL_DIRECTION_OUTGOING.

The Accept() method

Accept ();

Accept incoming call (answer).

Applicable only if state is MM_CALL_STATE_RINGING_IN and direction is MM_CALL_DIRECTION_INCOMING.

The Deflect() method

Deflect (IN  s number);

Deflect an incoming or waiting call to a new number. This call will be considered terminated once the deflection is performed.

Applicable only if state is MM_CALL_STATE_RINGING_IN or MM_CALL_STATE_WAITING and direction is MM_CALL_DIRECTION_INCOMING.

The JoinMultiparty() method

JoinMultiparty ();

Join the currently held call into a single multiparty call with another already active call.

The calls will be flagged with the 'Multiparty' property while they are part of the multiparty call.

Applicable only if state is MM_CALL_STATE_HELD.

The LeaveMultiparty() method

LeaveMultiparty ();

If this call is part of an ongoing multiparty call, detach it from the multiparty call, put the multiparty call on hold, and activate this one alone. This operation makes this call private again between both ends of the call.

Applicable only if state is MM_CALL_STATE_ACTIVE or MM_CALL_STATE_HELD and the call is a multiparty call.

The Hangup() method

Hangup ();

Hangup the active call.

Applicable only if state is MM_CALL_STATE_UNKNOWN.

The SendDtmf() method

SendDtmf (IN  s dtmf);

Send a DTMF tone (Dual Tone Multi-Frequency) (only on supported modem).

Applicable only if state is MM_CALL_STATE_ACTIVE.

The "DtmfReceived" signal

DtmfReceived (s dtmf);

Emitted when a DTMF tone is received (only on supported modem)

The "StateChanged" signal

StateChanged (i old,
              i new,
              u reason);

Emitted when call changes state

The "State" property

State  readable   i

A MMCallState value, describing the state of the call.

The "StateReason" property

StateReason  readable   i

A MMCallStateReason value, describing why the state is changed.

The "Direction" property

Direction  readable   i

A MMCallDirection value, describing the direction of the call.

The "Number" property

Number  readable   s

The remote phone number.

The "Multiparty" property

Multiparty  readable   b

Whether the call is currently part of a multiparty conference call.

The "AudioPort" property

AudioPort  readable   s

If call audio is routed via the host, the name of the kernel device that provides the audio. For example, with certain Huawei USB modems, this property might be "ttyUSB2" indicating audio is available via ttyUSB2 in the format described by the AudioFormat property.

The "AudioFormat" property

AudioFormat  readable   a{sv}

If call audio is routed via the host, a description of the audio format supported by the audio port.

This property may include the following items: