Please select “SMS” messaging if you send SMS messages to individuals who opt in to receiving SMS messages from you and if you use a Campaign Service Provider to send such messages. If you select “SMS” messaging, please also select the Campaign Service Provider that you use to send the messages from the following list:
Twilio;
RingCentral;
Nextiva;
AT&T;
LightSpeed;
Other: please select this option if you use a Campaign Service Provider that is not listed above. If you select this option, you will be able to input the name of your Campaign Service Provider into a field provided.