diff --git a/api/system-current.txt b/api/system-current.txt
index cb7f7bb365b33..dc9d2ae0eeb2b 100644
--- a/api/system-current.txt
+++ b/api/system-current.txt
@@ -5944,6 +5944,7 @@ package android.telephony.ims {
     field public static final int CODE_SIP_SERVER_TIMEOUT = 353; // 0x161
     field public static final int CODE_SIP_SERVICE_UNAVAILABLE = 352; // 0x160
     field public static final int CODE_SIP_TEMPRARILY_UNAVAILABLE = 336; // 0x150
+    field public static final int CODE_SIP_TRANSACTION_DOES_NOT_EXIST = 343; // 0x157
     field public static final int CODE_SIP_USER_REJECTED = 361; // 0x169
     field public static final int CODE_SUPP_SVC_CANCELLED = 1202; // 0x4b2
     field public static final int CODE_SUPP_SVC_FAILED = 1201; // 0x4b1
diff --git a/telephony/java/android/telephony/PreciseDisconnectCause.java b/telephony/java/android/telephony/PreciseDisconnectCause.java
index 46e2adbcfa7f9..2acaf34dbb302 100644
--- a/telephony/java/android/telephony/PreciseDisconnectCause.java
+++ b/telephony/java/android/telephony/PreciseDisconnectCause.java
@@ -332,6 +332,8 @@ public class PreciseDisconnectCause {
     public static final int SIP_NOT_REACHABLE                                = 1320;
     /** Others */
     public static final int SIP_CLIENT_ERROR                                 = 1321;
+    /** 481 : Transaction Does Not Exist */
+    public static final int SIP_TRANSACTION_DOES_NOT_EXIST                   = 1322;
     /** 5xx responses
      *  501 : Server Internal Error
      */
diff --git a/telephony/java/android/telephony/ims/ImsReasonInfo.java b/telephony/java/android/telephony/ims/ImsReasonInfo.java
index 81f2fe7f4ed85..662cc7a652ad9 100644
--- a/telephony/java/android/telephony/ims/ImsReasonInfo.java
+++ b/telephony/java/android/telephony/ims/ImsReasonInfo.java
@@ -163,6 +163,8 @@ public final class ImsReasonInfo implements Parcelable {
     public static final int CODE_SIP_NOT_REACHABLE = 341;
     // Others
     public static final int CODE_SIP_CLIENT_ERROR = 342;
+    // 481 Transaction Does Not Exist
+    public static final int CODE_SIP_TRANSACTION_DOES_NOT_EXIST = 343;
     // 5xx responses
     // 501 : Server Internal Error
     public static final int CODE_SIP_SERVER_INTERNAL_ERROR = 351;