diff --git a/lib/signalwire/rest/client.rb b/lib/signalwire/rest/client.rb
index 7badd0c..75cbb39 100644
--- a/lib/signalwire/rest/client.rb
+++ b/lib/signalwire/rest/client.rb
@@ -4,12 +4,12 @@ module Signalwire::REST
   class Client < Twilio::REST::Client
     def initialize(username = nil, password = nil, account_sid = nil, region = nil, http_client = Twilio::HTTP::Client.new, **args)
       host = args.delete(:signalwire_space_url)
+      service_provider = args.delete(:service_provider)
 
-      unless host.nil?
         Signalwire::Sdk.configure do |config|
-          config.hostname = host
+          config.hostname = host if host
+          config.service_provider = service_provider if service_provider
         end
-      end
 
       super(username, password, account_sid, region, http_client)
     end
diff --git a/lib/signalwire/sdk.rb b/lib/signalwire/sdk.rb
index 2f66f7c..9e09162 100644
--- a/lib/signalwire/sdk.rb
+++ b/lib/signalwire/sdk.rb
@@ -14,10 +14,16 @@
 module Signalwire
   module Sdk
     class << self
+      attr_accessor :configuration
+
       def configuration
         @configuration ||= Configuration.new
       end
 
+      def reset
+        @configuration = Configuration.new
+      end
+
       def configure
         yield(configuration)
       end
diff --git a/lib/signalwire/sdk/configuration.rb b/lib/signalwire/sdk/configuration.rb
index b5689a4..3835507 100644
--- a/lib/signalwire/sdk/configuration.rb
+++ b/lib/signalwire/sdk/configuration.rb
@@ -3,7 +3,22 @@
 module Signalwire
   module Sdk
     class Configuration
-      attr_accessor :hostname
+      attr_accessor :hostname, :service_provider
+
+      def initialize
+        @service_provider = 'signalwire' if self.service_provider.nil?
+      end
+
+      def configure
+        yield self
+      end
+
+
+      def reset_config
+        configure do |config|
+          config.service_provider = 'signalwire'
+        end
+      end
     end
   end
 end
diff --git a/lib/signalwire/sdk/domain.rb b/lib/signalwire/sdk/domain.rb
index 2defb94..d8a5647 100644
--- a/lib/signalwire/sdk/domain.rb
+++ b/lib/signalwire/sdk/domain.rb
@@ -3,8 +3,37 @@
 module Twilio
   module REST
     class Domain
+      attr_reader :client
+
+      def initialize(client)
+        @client = client
+        @host = nil
+        @base_url = nil
+        @port = nil
+      end
+
       def absolute_url(uri)
-        "#{@base_url.chomp('/')}/#{uri.chomp('/').gsub(%r{^/(api/)/}, '')}"
+        if Signalwire::Sdk.configuration.service_provider == 'twilio'
+          "#{@base_url.chomp('/')}/#{uri.chomp('/').gsub(/^\//, '')}"
+        else
+          "#{@base_url.chomp('/')}/#{uri.chomp('/').gsub(%r{^/(api/)/}, '')}"
+        end
+      end
+
+      def request(method, uri, params = {}, data = {}, headers = {}, auth = nil, timeout = nil)
+        url = uri.match(/^http/) ? uri : absolute_url(uri)
+
+        @client.request(
+            @base_url,
+            @port,
+            method,
+            url,
+            params,
+            data,
+            headers,
+            auth,
+            timeout
+        )
       end
     end
   end
diff --git a/lib/signalwire/sdk/twilio_set_fax.rb b/lib/signalwire/sdk/twilio_set_fax.rb
index 5345539..4e5fb54 100644
--- a/lib/signalwire/sdk/twilio_set_fax.rb
+++ b/lib/signalwire/sdk/twilio_set_fax.rb
@@ -6,11 +6,14 @@ class Fax < Domain
       def initialize(twilio)
         super
 
-        @host = ENV['SIGNALWIRE_HOST'] ||
-                Signalwire::Sdk.configuration.hostname ||
-                raise(ArgumentError,
-                      'SignalWire Space URL is not configured. Enter your SignalWire Space domain via the '\
+        @host = if Signalwire::Sdk.configuration.service_provider == 'twilio'
+                  'fax.twilio.com'
+                else
+                  ENV['SIGNALWIRE_HOST'] || Signalwire::Sdk.configuration.hostname ||
+                      raise(ArgumentError,
+                            'SignalWire Space URL is not configured. Enter your SignalWire Space domain via the '\
                       'SIGNALWIRE_HOST environment variable, or hostname in the configuration.')
+                end
 
         @base_url = "https://#{@host}"
         @port = 443
@@ -26,6 +29,10 @@ def hostname
         @host
       end
 
+      def service_provider
+        Signalwire::Sdk.configuration.service_provider
+      end
+
       attr_reader :account_sid
 
       class V1 < Version
diff --git a/lib/signalwire/sdk/twilio_set_host.rb b/lib/signalwire/sdk/twilio_set_host.rb
index 5fe8e19..8197d0e 100644
--- a/lib/signalwire/sdk/twilio_set_host.rb
+++ b/lib/signalwire/sdk/twilio_set_host.rb
@@ -6,13 +6,15 @@ class Api < Domain
       def initialize(twilio)
         super
 
-        @host = ENV['SIGNALWIRE_HOST'] ||
-                ENV['SIGNALWIRE_API_HOSTNAME'] ||
-                Signalwire::Sdk.configuration.hostname ||
-                raise(ArgumentError,
-                      'SignalWire Space URL is not configured. Enter your SignalWire Space domain via the '\
+        @host = if Signalwire::Sdk.configuration.service_provider == 'twilio'
+                  'api.twilio.com'
+                else
+                  ENV['SIGNALWIRE_HOST'] || ENV['SIGNALWIRE_API_HOSTNAME'] || Signalwire::Sdk.configuration.hostname ||
+                      raise(ArgumentError,
+                            'SignalWire Space URL is not configured. Enter your SignalWire Space domain via the '\
                       'SIGNALWIRE_HOST or SIGNALWIRE_API_HOSTNAME environment variables, '\
                       'or hostname in the configuration.')
+                end
 
         @base_url = "https://#{@host}"
         @port = 443
@@ -24,6 +26,10 @@ def initialize(twilio)
       def hostname
         @host
       end
+
+      def service_provider
+        Signalwire::Sdk.configuration.service_provider
+      end
     end
   end
 end
diff --git a/spec/signalwire/sdk/configuration_spec.rb b/spec/signalwire/sdk/configuration_spec.rb
index 6c4c992..a54c0ce 100644
--- a/spec/signalwire/sdk/configuration_spec.rb
+++ b/spec/signalwire/sdk/configuration_spec.rb
@@ -5,8 +5,9 @@
 module Signalwire
   RSpec.describe Sdk::Configuration do
     describe '#hostname' do
-      it 'there is no default' do
+      it 'there is no default hostname but is a default service provider' do
         expect(Sdk::Configuration.new.hostname).to eq nil
+        expect(Sdk::Configuration.new.service_provider).to eq 'signalwire'
       end
     end
 
@@ -14,14 +15,17 @@ module Signalwire
       it 'can set value' do
         config = Sdk::Configuration.new
         config.hostname = 'test.signalwire.com'
+        config.service_provider = 'twilio'
         expect(config.hostname).to eq('test.signalwire.com')
+        expect(config.service_provider).to eq('twilio')
       end
     end
 
     describe 'setting up directly in the constructor' do
       it 'sets the configuration in the constructor' do
-        client = Signalwire::REST::Client.new 'xyz123-xyz123-xyz123', 'PTxyz123-xyz123-xyz123', signalwire_space_url: 'test.signalwire.com'
+        client = Signalwire::REST::Client.new 'xyz123-xyz123-xyz123', 'PTxyz123-xyz123-xyz123', signalwire_space_url: 'test.signalwire.com', service_provider: 'twilio'
         expect(Signalwire::Sdk.configuration.hostname).to eq('test.signalwire.com')
+        expect(Signalwire::Sdk.configuration.service_provider).to eq('twilio')
       end
     end
   end
diff --git a/spec/signalwire/sdk_spec.rb b/spec/signalwire/sdk_spec.rb
index 0a73ee3..161ba28 100644
--- a/spec/signalwire/sdk_spec.rb
+++ b/spec/signalwire/sdk_spec.rb
@@ -4,7 +4,7 @@
 
 RSpec.describe Signalwire::Sdk do
   describe '#configure' do
-    it 'returns the configured hostname' do
+    it 'returns the configured hostname for signalwire' do
       Signalwire::Sdk.configure do |config|
         config.hostname = 'demo.signalwire.com'
       end
@@ -12,9 +12,23 @@
       twilio_client = Twilio::REST::Client.new
       expect(twilio_client.api.hostname).to eq('demo.signalwire.com')
       expect(twilio_client.fax.hostname).to eq('demo.signalwire.com')
+      expect(twilio_client.api.service_provider).to eq('signalwire')
     end
 
-    it 'requires the hostname configuration to be set' do
+    it 'returns the configured hostname for twilio' do
+      Signalwire::Sdk.configure do |config|
+        # config.hostname = 'demo.signalwire.com'
+        config.service_provider = 'twilio'
+      end
+
+      twilio_client = Twilio::REST::Client.new
+      expect(twilio_client.api.hostname).to eq('api.twilio.com')
+      expect(twilio_client.fax.hostname).to eq('fax.twilio.com')
+      expect(twilio_client.api.service_provider).to eq('twilio')
+    end
+
+
+    it 'requires the hostname configuration to be set for signalwire' do
       Signalwire::Sdk.configure do |config|
         config.hostname = nil
       end
@@ -23,5 +37,20 @@
         Twilio::REST::Client.new.api
       end.to raise_exception ArgumentError, /SignalWire Space URL is not configured/
     end
+
+    it 'does not require the hostname configuration to be set for twilio' do
+      Signalwire::Sdk.configure do |config|
+        config.hostname = nil
+        config.service_provider = 'twilio'
+      end
+
+      expect do
+        Twilio::REST::Client.new.api
+      end.not_to raise_exception ArgumentError, /SignalWire Space URL is not configured/
+    end
+
+    after :each do
+      Signalwire::Sdk.reset
+    end
   end
 end