Call a friend. This will start ringing the friend.
It is the client's responsibility to stop ringing after a certain timeout, if such behaviour is desired. If the client does not stop ringing, the library will not stop until the friend is disconnected. Audio and video receiving are both enabled by default.
| friend_number |
The friend number of the friend that should be called. |
| audio_bit_rate |
Audio bit rate in Kb/sec. Set this to 0 to disable audio sending. |
| video_bit_rate |
Video bit rate in Kb/sec. Set this to 0 to disable video sending. |