If you have a Hearsay Relate number and a Hearsay Site, you can acquire leads and have them sent directly to your computer and mobile phone, without needing to send the contact an opt-in attestation message.
When your contact completes the form from your website, they'll have the option to opt-in to text messaging by check marking the box.
If they've opted in to text messages with you, from the Conversations section you can view the contact's information and send text messages to them.