The message body text limit is not enough to contain my message.
Please create a web page full of contents that you would like to inform your recipients. In your SMS message, please include only a simple greeting and the url of that web-page to notify your recipients what you exactly want them to know. Please use url-shortening functions such as URL shorten to minimize your message.
Also, Xoxzo's Dial-in-numbers API would be more convenient to display your subscribed numbers to get the recipients to call you, to retrieve their information such as phone numbers. The call can play recorded messages as well as transfer to the other phone numbers of your own.