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-rw-r--r--telephony/java/android/telephony/data/ApnSetting.java4
1 files changed, 4 insertions, 0 deletions
diff --git a/telephony/java/android/telephony/data/ApnSetting.java b/telephony/java/android/telephony/data/ApnSetting.java
index 8e10f6b8e69e..fc94ebf2cc37 100644
--- a/telephony/java/android/telephony/data/ApnSetting.java
+++ b/telephony/java/android/telephony/data/ApnSetting.java
@@ -369,6 +369,10 @@ public class ApnSetting implements Parcelable {
public @interface AuthType {}
// Possible values for protocol which is defined in TS 27.007 section 10.1.1.
+ /** Unknown protocol.
+ * @hide
+ */
+ public static final int PROTOCOL_UNKNOWN = -1;
/** Internet protocol. */
public static final int PROTOCOL_IP = 0;
/** Internet protocol, version 6. */