Plugin which allows you to create Newsletter which will collect clients phone numbers and allow you to send SMS messages to them. Database is synchronized with SMSAPI account so messages can be sent from SMSAPI panel as well. More information on page https://www.smsapi.com.
Screenshots
After installing the plugin and moving to its settings, you'll see this overview.
After filling authorization data and saving you'll see next required settings as group to store subscribers and sender name of SMS messages sending through plugin.
In 'Subscription' tab you can set additional fields for newsletter and subscription verification by sending SMS message with random code.
In 'Notification' tab you can set own subscription notification sent after submitting by new subscribers.
On left bar in 'Send SMS' subtab of 'Newsletter SMS - SMSAPI' you can send SMS messages to all subscribers or to phone numbers that you type on your own.