IMS: Add support for call deflection feature

Call deflection feature is useful to deflect MT call to another
number.

Test: Manual

Bug: 62170348
Change-Id: Ie91e6fb7eb7589364c8fb0a0bae2d3ffb0db678e

1 files changed, 24 insertions, 0 deletions

diff --git a/src/java/com/android/ims/ImsCall.java b/src/java/com/android/ims/ImsCall.java
index 760e5e81..5fceb7af 100644
--- a/src/java/com/android/ims/ImsCall.java
+++ b/src/java/com/android/ims/ImsCall.java
@@ -1166,6 +1166,30 @@ public class ImsCall implements ICall {
     }
 
     /**
+     * Deflects a call.
+     *
+     * @param number number to be deflected to.
+     * @throws ImsException if the IMS service fails to deflect the call
+     */
+    public void deflect(String number) throws ImsException {
+        logi("deflect :: session=" + mSession + ", number=" + Rlog.pii(TAG, number));
+
+        synchronized(mLockObj) {
+            if (mSession == null) {
+                throw new ImsException("No call to deflect",
+                        ImsReasonInfo.CODE_LOCAL_CALL_TERMINATED);
+            }
+
+            try {
+                mSession.deflect(number);
+            } catch (Throwable t) {
+                loge("deflect :: ", t);
+                throw new ImsException("deflect()", t, 0);
+            }
+        }
+    }
+
+    /**
      * Rejects a call.
      *
      * @param reason reason code to reject an incoming call