Start Your Free Trial

15-Day Trial
No Credit Card Required
25 Free Credits

Would you like a demo before you dive in? Or feel free to view the guilds below for step-by-step instructions.


Usage Guides for CompleteSMS

If you need assistance, our stellar support team is almost always available, but we understand there’s just times when you want to do it yourself. These guides will help get you where you want to go.


Administrator Guide

Administrators have additional permissions.
This guide covers adding administrators and users, reviewing reports and viewing invoices.

View Guide

User Guide

Here’ll you find guidance on sending messages, adding contacts and distribution lists, creating templates and signatures along with where to view your inbox, sent box and errors.

View Guide




CompleteSMS API Documentation:


Already have a Red Oxygen Account? Contact Support and they'll help you get it migrated to CompleteSMS.

Free Trial FAQs

What are credits?

Credits are used like SMS currency. You purchase credits (or in the case of the free trial, you’ll get 25 free credits), and then every time you send you ‘spend’ a credit.

Typically one SMS will equal one credit if sending nationally/locally, and two credits when sending internationally. (There are some cases where is will be more or less, but they are rare, contact Red Oxygen if you have any questions.)


Your message has three SMS parts (over 306 ASCII characters) your credits spent will be three.

Your message has less than 160 characters it would only cost 1 credit to send it locally.


Why was I charged more then one credit if I sent locally.

In most cases this is due to sending more than one SMS in your message. One SMS is 160 characters (Unicode characters are counted as 70 characters = 1 credit).

If you sent a local message with more than 160 characters, the message will be considered multipart and will then be charged at one credit per part. Red Oxygen supports 765 characters which would equal 5 SMS credits (10 if sent internationally).

This page on credits will give you more information.

Why are my messages failing?

On a trial account you can only send to the phone number that you signed up with on your trial form. (so basically sending to yourself)

If you’d like to test by sending to someone else, please contact support by calling, chatting or submitting a form.


What if I don't have a company domain email address?

If you’re trying to sign up with a gmail, hotmail, yahoo, etc free domain email addresses, you’ll need to contact us and we’ll help you set up your trial.

Can I test bulk sends on a trial account?

You sure can! On the CompleteSMS interface you have the option of single/mailing list SMS sends or bulk sends which utilizes information uploaded from a spreadsheet.

You can even test the API with this same account—API documentation.


How do I upgrade to a paid account?

Check out our pricing page to see if an existing bundle will work for your needs or if you need us to create a customized bundle just for you. Then contact Sales and they’ll get you set up.

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