If you're looking for a Retarus alternative, RingCentral is a good option. It's a cloud-based communications platform that includes features like secure cloud faxing, sophisticated business SMS and AI-first video meetings. It's highly customizable with APIs and SDKs, and it integrates with business apps like SAP and Microsoft 365.
Another option is Twilio, which offers a powerful customer engagement platform with SMS, WhatsApp, voice and email APIs. It also includes services like a Customer Data Platform for creating personalized customer journeys, strong authentication options and omnichannel communication APIs. With more than 290,000 brands using Twilio, it's a good option for businesses looking to improve their communications.
If you're more concerned with secure document delivery, etherFAX is a hybrid-cloud infrastructure-as-a-service option for business communications. It includes a Secure Exchange Network for secure document exchange, ERIS for replacing on-premises fax server tasks, and AI Insights for data extraction. etherFAX is HIPAA compliant and other security standards, so it's a good option for health care organizations.
Last, Laserfiche is another option, an enterprise content management (ECM) and business process automation foundation. It includes powerful workflows, electronic forms, document management and AI tools to generate and validate content. Laserfiche is used in many industries, with flexible pricing and a community-created Solution Marketplace for custom needs.