Enabling phone number validation when sending the first SMS to a new contact involves verifying the phone number's authenticity and correctness before sending a message. This process ensures the number is valid and capable of receiving SMS.
Phone number validation is a paid service from Twilio, costing $0.005 per validation attempt.
1. Start by selecting 'Settings' to customize your preferences.
2. Then, proceed to 'Business Profile' to update your company details.
3. Next, go to the 'General Section' to adjust more specific settings.
4. Finally, enable the option to validate phone numbers upon first contact.
