diff --git a/src/Voice/Bxml/StartStream.php b/src/Voice/Bxml/StartStream.php
index 029cb1d..d7e1ef4 100644
--- a/src/Voice/Bxml/StartStream.php
+++ b/src/Voice/Bxml/StartStream.php
@@ -77,6 +77,15 @@ public function streamEventMethod($streamEventMethod) {
         $this->streamEventMethod = $streamEventMethod;
     }
 
+    /**
+     * Sets the <StreamParam/> tag. You may specify up to 12 <StreamParam/> elements nested within a <StartStream> tag. These elements define optional user specified parameters that will be sent to the destination URL when the stream is first started.
+     *
+     * @param list<StreamParam> $streamParams The list of StreamParam tags
+     */
+    public function streamParams($streamParams) {
+        $this->streamParams = $streamParams;
+    }
+
     public function toBxml($doc) {
         $element = $doc->createElement("StartStream");
 
@@ -108,6 +117,12 @@ public function toBxml($doc) {
             $element->setattribute("streamEventMethod", $this->streamEventMethod);
         }
 
+        if(isset($this->streamParams)) {
+            foreach ($this->streamParams as $streamParam) {
+                $element->appendChild($streamParam->toBxml($doc));
+            }
+        }
+
         return $element;
     }
 }
diff --git a/src/Voice/Bxml/StreamParam.php b/src/Voice/Bxml/StreamParam.php
new file mode 100644
index 0000000..cafff17
--- /dev/null
+++ b/src/Voice/Bxml/StreamParam.php
@@ -0,0 +1,47 @@
+<?php
+/**
+ * StreamParam.php
+ *
+ * Implementation of the BXML StreamParam tag. You may specify up to 12 <StreamParam/> elements nested within a <StartStream> tag. These elements define optional user specified parameters that will be sent to the destination URL when the stream is first started.
+ *
+ *  * @copyright Bandwidth INC
+ */
+
+namespace BandwidthLib\Voice\Bxml;
+
+require_once "Verb.php";
+
+class StreamParam extends Verb {
+
+    /**
+     * Sets the name attribute for StreamParam
+     *
+     * @param string $name (required) The name of this parameter, up to 256 characters.
+     */
+    public function name($name) {
+        $this->name = $name;
+    }
+
+    /**
+     * Sets the value attribute for StreamParam
+     *
+     * @param string $value (required) The value of this parameter, up to 2048 characters.
+     */
+    public function value($value) {
+        $this->value = $value;
+    }
+
+    public function toBxml($doc) {
+        $element = $doc->createElement("StreamParam");
+
+        if(isset($this->name)) {
+            $element->setAttribute("name", $this->name);
+        }
+
+        if(isset($this->value)) {
+            $element->setAttribute("value", $this->value);
+        }
+
+        return $element;
+    }
+}
diff --git a/tests/BxmlTest.php b/tests/BxmlTest.php
index a81417e..d7d15f1 100644
--- a/tests/BxmlTest.php
+++ b/tests/BxmlTest.php
@@ -352,6 +352,12 @@ public function testStopRecording() {
         $this->assertEquals($expectedXml, $responseXml);
     }
     public function testStartStream() {
+        $streamParam1 = new BandwidthLib\Voice\Bxml\StreamParam();
+        $streamParam1->name("name1");
+        $streamParam1->value("value1");
+        $streamParam2 = new BandwidthLib\Voice\Bxml\StreamParam();
+        $streamParam2->name("name2");
+        $streamParam2->value("value2");
         $startStream = new BandwidthLib\Voice\Bxml\StartStream();
         $startStream->name("test");
         $startStream->tracks("inbound");
@@ -360,11 +366,13 @@ public function testStartStream() {
         $startStream->username("user");
         $startStream->password("pass");
         $startStream->streamEventUrl("https://url.com");
+        $startStream->streamParams(array($streamParam1, $streamParam2));
+
 
         $response = new BandwidthLib\Voice\Bxml\Response();
         $response->addVerb($startStream);
 
-        $expectedXml = '<?xml version="1.0" encoding="UTF-8"?><Response><StartStream destination="https://url.com" name="test" tracks="inbound" username="user" password="pass" streamEventUrl="https://url.com" streamEventMethod="POST"/></Response>';
+        $expectedXml = '<?xml version="1.0" encoding="UTF-8"?><Response><StartStream destination="https://url.com" name="test" tracks="inbound" username="user" password="pass" streamEventUrl="https://url.com" streamEventMethod="POST"><StreamParam name="name1" value="value1"/><StreamParam name="name2" value="value2"/></StartStream></Response>';
         $responseXml = $response->toBxml();
         $this->assertEquals($expectedXml, $responseXml);
     }