Cross Reference: /development/samples/SipDemo/src/com/example/android/sip

`Name`	`Date`	`Size`
Up to higher level directory
`IncomingCallReceiver.java`	21-Aug-2018	`2.3K`
`SipSettings.java`	21-Aug-2018	`1.1K`
`WalkieTalkieActivity.java`	21-Aug-2018	`12.5K`