Due to FCC regulations, contacts from your group must “Opt-In” in order to receive text messages from you.

This document explains how “Opting in” works:

All contacts can call 877-304-5857, from their phone, to easily "Opt-in" or text CPC to 24251. This will automatically make that phone number text ready; 24-251 is the phone number or “short code” that CallingPost Communications uses and the phone number that your contacts will see.

When a User sends a text to a contact, the Contact MUST reply with the response word of “ok” after receiving the text. CallingPost automatically sends the request, of replying “ok”, when you send the contact their first text. If the Contact DOESN’T reply “ok”, no more texts will be received by that contact. There is no time limit in sending the reply of “ok”. It will be accepted at any point after receiving the initial Text message.

If the contact does not want to receive any future texts from that User, The contact can text the response word “stop” and this will prevent any further texts from being sent. If a contact has sent the response word of “stop” and now wants to receive future texts, the contact must send the letter “CPC” to the phone number 24251. This will unblock the contact's phone and future texts will now be received. The letters “CPC” are a global opt-in and will automatically override all other commands entered by a contact.