diff --git a/lib/swift/Sources/TMultiplexedProtocol.swift b/lib/swift/Sources/TMultiplexedProtocol.swift
new file mode 100644
index 0000000..73a8d51
--- /dev/null
+++ b/lib/swift/Sources/TMultiplexedProtocol.swift
@@ -0,0 +1,47 @@
+/*
+* Licensed to the Apache Software Foundation (ASF) under one
+* or more contributor license agreements. See the NOTICE file
+* distributed with this work for additional information
+* regarding copyright ownership. The ASF licenses this file
+* to you under the Apache License, Version 2.0 (the
+* "License"); you may not use this file except in compliance
+* with the License. You may obtain a copy of the License at
+*
+*   http://www.apache.org/licenses/LICENSE-2.0
+*
+* Unless required by applicable law or agreed to in writing,
+* software distributed under the License is distributed on an
+* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+* KIND, either express or implied. See the License for the
+* specific language governing permissions and limitations
+* under the License.
+*/
+
+public class TMultiplexedProtocol<Protocol: TProtocol>: TWrappedProtocol<Protocol> {
+  public let separator = ":"
+
+  public var serviceName = ""
+  
+  public convenience init(on transport: TTransport, serviceName: String) {
+    self.init(on: transport)
+    self.serviceName = serviceName    
+  }
+
+  override public func writeMessageBegin(name: String,
+                                         type messageType: TMessageType,
+                                         sequenceID: Int32) throws {
+    switch messageType {
+    case .call, .oneway:
+      var serviceFunction = serviceName
+      serviceFunction += serviceName == "" ? "" : separator
+      serviceFunction += name
+      return try super.writeMessageBegin(name: serviceFunction,
+                                         type: messageType,
+                                         sequenceID: sequenceID)
+    default:
+      return try super.writeMessageBegin(name: name,
+                                         type: messageType,
+                                         sequenceID: sequenceID)
+    }
+  }
+}