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-rw-r--r--telecomm/java/android/telecom/PhoneAccountHandle.java3
1 files changed, 3 insertions, 0 deletions
diff --git a/telecomm/java/android/telecom/PhoneAccountHandle.java b/telecomm/java/android/telecom/PhoneAccountHandle.java
index 570f5fd..4600b72 100644
--- a/telecomm/java/android/telecom/PhoneAccountHandle.java
+++ b/telecomm/java/android/telecom/PhoneAccountHandle.java
@@ -80,6 +80,9 @@ public class PhoneAccountHandle implements Parcelable {
* ({@code 0}, {@code 1}, {@code 2}, ...) that are generated locally on each phone and could
* collide with values generated on other phones or after a data wipe of a given phone.
*
+ * Important: A non-unique identifier could cause non-deterministic call-log backup/restore
+ * behavior.
+ *
* @return A service-specific unique identifier for this {@code PhoneAccountHandle}.
*/
public String getId() {