documentation: service sid config (#108)

Author: harlan-zw

README.md

@@ -15,7 +15,6 @@ You are viewing the `3.x` documentation. [Click here](https://github.com/laravel
 ## Contents
 
 - [Installation](#installation)
-	- [Setting up your Twilio account](#setting-up-your-twilio-account)
 - [Usage](#usage)
 	- [Available Message methods](#available-message-methods)
 - [Changelog](#changelog)
@@ -45,6 +44,7 @@ TWILIO_ACCOUNT_SID=1234 # always required
 TWILIO_FROM=100000000 # optional default from
 TWILIO_ALPHA_SENDER=HELLO # optional
 TWILIO_DEBUG_TO=23423423423 # Set a number that call calls/messages should be routed to for debugging
+TWILIO_SMS_SERVICE_SID=MG0a0aaaaaa00aa00a00a000a00000a00a # Optional but recommended 
 ```
 
 ### Advanced configuration
@@ -62,6 +62,13 @@ exception codes from [the documentation](https://www.twilio.com/docs/api/errors)
 If you want to suppress all errors, you can set the option to `['*']`. The errors will not be logged but notification
 failed events will still be emitted.
 
+#### Recommended Configuration
+
+Twilio recommends always using a [Messaging Service](https://www.twilio.com/docs/sms/services) because it gives you
+ access to features like Advanced Opt-Out, Sticky Sender, Scaler, Geomatch, Shortcode Reroute, and Smart Encoding.
+
+Having issues with SMS? Check Twilio's [best practices](https://www.twilio.com/docs/sms/services/services-best-practices).
+
 ## Upgrading from 2.x to 3.x
 
 If you're upgrading from version `2.x`, you'll need to make sure that your set environment variables match those above 
@@ -161,6 +168,7 @@ public function routeNotificationForTwilio()
 
 - `from('')`: Accepts a phone to use as the notification sender.
 - `content('')`: Accepts a string value for the notification body.
+- `messagingServiceSid('')`: Accepts a messaging service SID to handle configuration.
 
 #### TwilioCallMessage
 

config/twilio-notification-channel.php

@@ -9,6 +9,11 @@
     'from' => env('TWILIO_FROM'), // optional
     'alphanumeric_sender' => env('TWILIO_ALPHA_SENDER'),
 
+    /**
+     * See https://www.twilio.com/docs/sms/services.
+     */
+    'sms_service_sid' => env('TWILIO_SMS_SERVICE_SID'),
+
     /**
      * Specify a number where all calls/messages should be routed. This can be used in development/staging environments
      * for testing.