diff --git a/lib/bandwidth-sdk.rb b/lib/bandwidth-sdk.rb
index c0d0adcb..3efde4ec 100644
--- a/lib/bandwidth-sdk.rb
+++ b/lib/bandwidth-sdk.rb
@@ -236,6 +236,7 @@
 require 'bandwidth-sdk/models/bxml/verbs/play_audio'
 require 'bandwidth-sdk/models/bxml/verbs/record'
 require 'bandwidth-sdk/models/bxml/verbs/redirect'
+require 'bandwidth-sdk/models/bxml/verbs/refer'
 require 'bandwidth-sdk/models/bxml/verbs/resume_recording'
 require 'bandwidth-sdk/models/bxml/verbs/ring'
 require 'bandwidth-sdk/models/bxml/verbs/send_dtmf'
diff --git a/lib/bandwidth-sdk/models/bxml/verbs/refer.rb b/lib/bandwidth-sdk/models/bxml/verbs/refer.rb
new file mode 100644
index 00000000..195983eb
--- /dev/null
+++ b/lib/bandwidth-sdk/models/bxml/verbs/refer.rb
@@ -0,0 +1,24 @@
+module Bandwidth
+  module Bxml
+    class Refer < Bandwidth::Bxml::NestableVerb
+      # Initializer
+      # @param sip_uri [SipUri] The SIP URI to REFER the call to. Uses the same SipUri verb shared with Transfer. Defaults to an empty array.
+      # @param attributes [Hash] The attributes to add to the element. Defaults to an empty hash.
+      def initialize(sip_uri = [], attributes = {})
+        super('Refer', nil, sip_uri, attributes)
+
+        @attribute_map = {
+          refer_complete_url: 'referCompleteUrl',        # Optional [String]: URL to send the Refer Complete event to and request new BXML for failure recovery. May be a relative URL. Defaults to None.
+          refer_complete_method: 'referCompleteMethod',   # Optional [String]: The HTTP method to use for the request to referCompleteUrl. GET or POST. Default value is POST. Defaults to None.
+          tag: 'tag',                                     # Optional [String]: A custom string that will be sent with this and all future callbacks unless overwritten by a future tag attribute or cleared. May be cleared by setting tag="". Max length 256 characters. Defaults to None.
+        }
+      end
+
+      # Set the SIP URI destination for this Refer verb
+      # @param sip_uri [SipUri] The SIP URI to refer the call to.
+      def set_sip_uri(sip_uri)
+        @nested_verbs = [sip_uri]
+      end
+    end
+  end
+end
diff --git a/lib/bandwidth-sdk/models/bxml/verbs/sip_uri.rb b/lib/bandwidth-sdk/models/bxml/verbs/sip_uri.rb
index 6f123a91..e3295995 100644
--- a/lib/bandwidth-sdk/models/bxml/verbs/sip_uri.rb
+++ b/lib/bandwidth-sdk/models/bxml/verbs/sip_uri.rb
@@ -1,8 +1,10 @@
 module Bandwidth
   module Bxml
     class SipUri < Bandwidth::Bxml::Verb
+      # Shared nested verb used by both Transfer and Refer to specify a SIP URI destination.
+      #
       # Initializer
-      # @param uri [String] A SIP URI to transfer the call to (e.g. sip:user@server.com)
+      # @param uri [String] A SIP URI to transfer or refer the call to (e.g. sip:user@server.com)
       # @param attributes [Hash] The attributes to add to the element. Defaults to an empty hash.
       def initialize(uri, attributes = {})
         super('SipUri', uri, attributes)
diff --git a/spec/unit/models/bxml/verbs/refer_spec.rb b/spec/unit/models/bxml/verbs/refer_spec.rb
new file mode 100644
index 00000000..3fab4c7e
--- /dev/null
+++ b/spec/unit/models/bxml/verbs/refer_spec.rb
@@ -0,0 +1,54 @@
+# Unit tests for Bandwidth::Bxml::Refer
+describe 'Bandwidth::Bxml::Refer' do
+  let(:initial_attributes) {
+    {
+      refer_complete_url: 'https://initial.com',
+      refer_complete_method: 'POST',
+      tag: 'initial_tag'
+    }
+  }
+
+  let(:new_attributes) {
+    {
+      refer_complete_url: 'https://new.com',
+      refer_complete_method: 'GET',
+      tag: 'new_tag'
+    }
+  }
+
+  let(:sip_uri) { Bandwidth::Bxml::SipUri.new('sip:alice@atlanta.example.com') }
+
+  let(:instance) { Bandwidth::Bxml::Refer.new([], initial_attributes) }
+  let(:instance_nested) { Bandwidth::Bxml::Refer.new(sip_uri, initial_attributes) }
+
+  describe 'test an instance of Refer' do
+    it 'validates instance of Refer' do
+      expect(instance).to be_instance_of(Bandwidth::Bxml::Refer)
+      expect(instance).to be_a(Bandwidth::Bxml::Verb)
+    end
+
+    it 'tests the set_attributes method of the Refer instance' do
+      instance.set_attributes(new_attributes)
+      expected = "\n<Refer referCompleteUrl=\"https://new.com\" referCompleteMethod=\"GET\" tag=\"new_tag\"/>\n"
+      expect(instance.to_bxml).to eq(expected)
+    end
+
+    it 'tests the set_sip_uri method of the Refer instance' do
+      instance.set_sip_uri(sip_uri)
+      expected = "\n<Refer referCompleteUrl=\"https://initial.com\" referCompleteMethod=\"POST\" tag=\"initial_tag\">\n  <SipUri>sip:alice@atlanta.example.com</SipUri>\n</Refer>\n"
+      expect(instance.to_bxml).to eq(expected)
+    end
+  end
+
+  describe 'test an instance of Refer with a nested SipUri' do
+    it 'validates instance of Refer' do
+      expect(instance_nested).to be_instance_of(Bandwidth::Bxml::Refer)
+      expect(instance_nested).to be_a(Bandwidth::Bxml::Verb)
+    end
+
+    it 'tests the to_bxml method of the nested Refer instance' do
+      expected = "\n<Refer referCompleteUrl=\"https://initial.com\" referCompleteMethod=\"POST\" tag=\"initial_tag\">\n  <SipUri>sip:alice@atlanta.example.com</SipUri>\n</Refer>\n"
+      expect(instance_nested.to_bxml).to eq(expected)
+    end
+  end
+end