Red Oxygen

Web & Browser Messaging

• Web SMS Portal: Send and receive business texts from any browser, no installation required.
• Bulk SMS: Reach entire contact lists at once using templates and merge fields for personalized outreach.
• Scheduled Messaging: Queue messages to send at a future date and time, even when offline.

Email-Based SMS

• Outlook Add-in: Send SMS directly from Classic and New Outlook without switching applications.
• Gmail Add-on: Text customers straight from the Gmail interface on desktop or mobile.

API & Integration

• SMS Gateway API: Connect existing CRMs or software to CompleteSMS via HTTPS or SMTP for automated messaging.
• White Label Interface: Brand the SMS admin and billing portal with your own logo and information.

Platform Features & Compliance

• Two-Way Texting: Read and respond to customer replies in a centralized inbox.
• 10DLC Registration Management: Stay carrier-compliant with managed 10DLC registration for US messaging.
• Opt-Out & Blacklist Management: Automatically honor opt-out keywords to maintain compliance.
• Call Forwarding: Route inbound calls from your dedicated SMS number to any voice-enabled device.

Red Oxygen makes business SMS straightforward for organizations of every size, from local shops to Fortune 500 brands. Built on more than 24 years of experience in the SMS market, the company developed CompleteSMS, a platform that lets any business send texts through a browser, email client, or API without needing a developer to get started.

Red Oxygen operates with teams in the United States, Canada, Australia, and the United Kingdom, keeping customer support close regardless of time zone. The company has supported neighborhood nonprofits and global enterprises alike, and its setup remains free with no-charge onboarding. CEO and Co-Founder Tom Sheahan and CTO and Co-Founder Tim Hunt have guided the business since its founding, drawing on deep backgrounds in IT and telecommunications across the US and Australia.