Messages sent through Dialpad are delivered via an internet connection. This starts a 'chat' between Dialpad users.
But you can also send a message to someone who isn't using the Dialpad platform. That communication goes through traditional SMS/MMS-based networks and appears as a text.
That Dialpad-to-SMS communication is considered Application-to-Person (A2P) by U.S. carriers.
A2P Requires compliance with the Telephone Consumer Protection Act (TCPA) and adherence to the Cellular Telecommunications and Internet Association (CTIA) guidelines, which means the recipient has the option to stop communications from that number or continue them again.
Recipient Text Commands
After a recipient has received a message from a Dialpad user, they have the option to enter one of three text commands: STOP, UNSTOP, or HELP. Currently, these commands do not apply to toll-free numbers.
Once a recipient replies to a message with STOP, they will no longer receive texts from that number. As the sender, you will no longer be able to send the recipient a message because the input field will become inaccessible.
A message will also appear in a gray box on the bottom of the screen letting you know that the recipient has replied with STOP. This is what it looks like in your Dialpad app:
Sometimes, people change their minds — it happens. In that case, the recipient has the option to reply with the UNSTOP command. That opts them back into receiving messages from that particular number. As the sender, you'll be able to send them messages again, too.
When the HELP command is entered, the recipient will receive an automated message to contact the main line number for further assistance.