File list:
SipDemo
......\res
......\...\drawable
......\...\........\btn_record.xml
......\...\........\btn_speak_normal.png
......\...\........\btn_speak_pressed.png
......\...\........\btn_speak_selected.png
......\...\........\icon.png
......\...\layout
......\...\......\call_address_dialog.xml
......\...\......\walkietalkie.xml
......\...\values
......\...\......\strings.xml
......\...\xml
......\...\...\preferences.xml
......\src
......\...\com
......\...\...\example
......\...\...\.......\android
......\...\...\.......\.......\sip
......\...\...\.......\.......\...\IncomingCallReceiver.java
......\...\...\.......\.......\...\SipSettings.java
......\...\...\.......\.......\...\WalkieTalkieActivity.java
......\AndroidManifest.xml
