You will use SMS and voice to send SMS text messages from shared or reserved phone numbers.
On the Configure features page, choose Project features > SMS and voice/Configure to Set up SMS.
If you closed the Amazon Pinpoint Console, open it again and navigate to your project > Settings > SMS and voice/Manage > SMS settings/Edit.
Tick the checkbox to enable the SMS channel for your project.
The Account-level settings let you configure the default SMS message type for your project, account spending limits, and dedicated sender ID.
The Advanced configurations let you set up a dedicated number that is assigned to your account. This is needed if you want to use two-way SMS messaging.
Click the Save button. You are ready to send SMS and voice messages.