diff --git a/sdk/communication/Azure.Communication.CallAutomation/api/Azure.Communication.CallAutomation.netstandard2.0.cs b/sdk/communication/Azure.Communication.CallAutomation/api/Azure.Communication.CallAutomation.netstandard2.0.cs
index 7d6c3a29a2cc..f2d7a80e0136 100644
--- a/sdk/communication/Azure.Communication.CallAutomation/api/Azure.Communication.CallAutomation.netstandard2.0.cs
+++ b/sdk/communication/Azure.Communication.CallAutomation/api/Azure.Communication.CallAutomation.netstandard2.0.cs
@@ -947,7 +947,6 @@ public partial class TransferToParticipantOptions
         public TransferToParticipantOptions(Azure.Communication.CallAutomation.CallInvite callInvite) { }
         public Azure.Communication.CallAutomation.CallInvite CallInvite { get { throw null; } }
         public string OperationContext { get { throw null; } set { } }
-        public string UserToUserInformation { get { throw null; } set { } }
     }
     public partial class UnmuteParticipantsOptions
     {
diff --git a/sdk/communication/Azure.Communication.CallAutomation/src/CallConnection.cs b/sdk/communication/Azure.Communication.CallAutomation/src/CallConnection.cs
index 36340d5b2f28..6b4da8f2c926 100644
--- a/sdk/communication/Azure.Communication.CallAutomation/src/CallConnection.cs
+++ b/sdk/communication/Azure.Communication.CallAutomation/src/CallConnection.cs
@@ -297,15 +297,17 @@ private static TransferToParticipantRequestInternal CreateTransferToParticipantR
             TransferToParticipantRequestInternal request = new TransferToParticipantRequestInternal(CommunicationIdentifierSerializer.Serialize(options.CallInvite.Target));
 
             request.TransfereeCallerId = options.CallInvite.SourceCallerIdNumber == null ? null : new PhoneNumberIdentifierModel(options.CallInvite.SourceCallerIdNumber.PhoneNumber);
-            if (options.UserToUserInformation != null && options.UserToUserInformation.Length > CallAutomationConstants.InputValidation.StringMaxLength)
+
+            foreach (var sipHeader in options.CallInvite.SipHeaders)
             {
-                throw new ArgumentException(CallAutomationErrorMessages.UserToUserInformationExceedsMaxLength);
+                request.CustomContext.SipHeaders.Add(sipHeader.Key, sipHeader.Value);
             }
-            // TODO: update logic
-            // else
-            // {
-            //     request.UserToUserInformation = options.UserToUserInformation;
-            // }
+
+            foreach (var voipHeader in options.CallInvite.VoipHeaders)
+            {
+                request.CustomContext.SipHeaders.Add(voipHeader.Key, voipHeader.Value);
+            }
+
             if (options.OperationContext != null && options.OperationContext.Length > CallAutomationConstants.InputValidation.StringMaxLength)
             {
                 throw new ArgumentException(CallAutomationErrorMessages.OperationContextExceedsMaxLength);
diff --git a/sdk/communication/Azure.Communication.CallAutomation/src/Models/TransferToParticipantOptions.cs b/sdk/communication/Azure.Communication.CallAutomation/src/Models/TransferToParticipantOptions.cs
index 93c0ee9751b1..204cdf0ccf14 100644
--- a/sdk/communication/Azure.Communication.CallAutomation/src/Models/TransferToParticipantOptions.cs
+++ b/sdk/communication/Azure.Communication.CallAutomation/src/Models/TransferToParticipantOptions.cs
@@ -24,11 +24,6 @@ public TransferToParticipantOptions(CallInvite callInvite)
         /// </summary>
         public CallInvite CallInvite { get; }
 
-        /// <summary>
-        /// The UserToUserInformation.
-        /// </summary>
-        public string UserToUserInformation { get; set; }
-
         /// <summary>
         /// The operationContext for this transfer call.
         /// </summary>
diff --git a/sdk/communication/Azure.Communication.CallAutomation/tests/CallConnections/CallConnectionTests.cs b/sdk/communication/Azure.Communication.CallAutomation/tests/CallConnections/CallConnectionTests.cs
index e8b49cf00d02..d2ff890880a4 100644
--- a/sdk/communication/Azure.Communication.CallAutomation/tests/CallConnections/CallConnectionTests.cs
+++ b/sdk/communication/Azure.Communication.CallAutomation/tests/CallConnections/CallConnectionTests.cs
@@ -190,20 +190,6 @@ public void TransferCallToParticipant_ExceedsMaxOperationContextLength(CallInvit
             Assert.True(ex?.Message.Contains(CallAutomationErrorMessages.OperationContextExceedsMaxLength));
         }
 
-        [TestCaseSource(nameof(TestData_TransferCallToParticipant))]
-        public void TransferCallToParticipant_ExceedsMaxUserToUserInformationLengthLength(CallInvite callInvite)
-        {
-            var callConnection = CreateMockCallConnection(202);
-
-            var options = new TransferToParticipantOptions(callInvite)
-            {
-                UserToUserInformation = new string('a', 1 + CallAutomationConstants.InputValidation.StringMaxLength)
-            };
-            ArgumentException? ex = Assert.Throws<ArgumentException>(() => callConnection.TransferCallToParticipant(options));
-            Assert.NotNull(ex);
-            Assert.True(ex?.Message.Contains(CallAutomationErrorMessages.UserToUserInformationExceedsMaxLength));
-        }
-
         [TestCaseSource(nameof(TestData_AddOrRemoveParticipant))]
         public async Task AddParticipantsAsync_202Accepted(CommunicationIdentifier participantToAdd)
         {
@@ -575,7 +561,8 @@ private CallConnection CreateMockCallConnection(int responseCode, string? respon
             {
                 new object?[]
                 {
-                    new CallInvite(new CommunicationUserIdentifier("userId"))
+                    new CallInvite(new CommunicationUserIdentifier("userId")){
+                        SipHeaders = {{ "key1", "value1" }}}
                 },
             };
         }