You need to have a phone number before you can start sending and receiving texts. We recommend Twilio, and have a whole section for setting up Twilio in a later chapter. Even if you don’t have a phone number set up yet, it’s important to be familiar with the System Phone Number settings because they are referenced later in this chapter. These settings can be accessed and maintained from Admin Tools > Settings > System Phone Numbers. 1 Basic Settings - Here you can give the number a name, make it active or inactive, and choose a description. A good description can be very helpful if you have multiple phone numbers. Only Active phone numbers can receive responses. You might use a phone number for a large event and then inactivate it until the next event. 2 Phone Number - Be sure that the phone number is in the Phone Number field and that it is in the format of "+15555555555" (or similar for international numbers). 3 Assigned to Person - The person you select here will receive the incoming messages sent to the SMS Phone Number you’re viewing. This only happens if SMS Forwarding is enabled. Be sure the individual you select has a valid SMS phone number on their record. 4 SMS Enabled - This simply indicates whether the number can be used in SMS contexts within Rock. 5 SMS Forwarding - If enabled, then incoming messages to this SMS Phone Number will be sent to the Assigned to Person and to the SMS Pipeline. If this is not enabled, then the conversation will still go to the SMS Pipeline or SMS Conversations, but it will not be sent to the Assigned to Person. 6 SMS Received Workflow - You have the option of automatically launching a workflow when a response is received. Use this field to indicate which workflow should launch. Don’t forget, you can use the same phone number to launch different types of workflows using the SMS Pipeline. 7 SMS Notification Group - The members of this group will be notified when a message is received to this number. This option only works with a Rock Mobile app, via push notifications. 8 Mobile Application - Using this requires that you have Mobile configured correctly. This determines which mobile application to use when sending notifications. In addition to the Assigned to Person settings described above, you can apply security to each System Phone Number individually. Simply click the ti ti-lock icon when viewing the Phone Number to apply security for that number. Please note that the security does not transfer over to SMS Conversations, Communication Wizard and Simple Communication blocks. You may also want to review the block settings for SMS Conversations to further refine how your numbers are used and who can see them.