sipdroid 拨号流程

sipdoid拨号流程--->

 

在sipdroid的onCreate方法中设置了按键和触摸的监听器，点击拨号后会调用call_menu：

1. call_menu（）----------sipdroid.java

            |

  Receiver.engine(this).call()

           ||

2.call() --------sipdroidEngine.java

            |

  ua.call()

            ||

3.call() -------------userAgent.java

            |

  call.call()

            ||

4.call() ----------- extendedCall.java

            |

  dialog.invite()

            ||

5. invite() ----------- inviteDialog.java

            |

  invite_tc.request();

           ||

6. request() ---------- inviteTransactionClient.java

           |

  sip_provider.sendMessage()

           ||

7.  sendMessage(Message msg)-------- sipProvider.java

           |

  sendMessage(Message msg, String proto,   String dest_addr, int dest_port, int ttl)

           |

  sendMessage(Message msg, String proto,   IpAddress dest_ipaddr, int dest_port, int ttl) 

          |

  udp.sendMessage()

         ||

8.sendMessage() ------------ udpTransport.java

          |

  udp_provider.send()

         ||

9. send() ------------udpProvider.java

          |

  socket.send()

          ||

10. send() ------------udpSocket.java

          |

 socket.send(pkt.getDatagramPacket());

         ||

11. DatagramSocket.send ------------android api