# Flowstates > Flowstates runs managed messaging operations for SaaS platforms, BPOs and enterprises — a managed gateway, CPaaS, APIs and the Bridge workspace, across SMS, RCS, WhatsApp, email, voice and OTP. Operating model: bring-your-own-vendor (BYOV) or use Flowstates' vendor contracts. 99.99% gateway SLA. Markets: UK & Ireland, US, Canada, Singapore, Australia & New Zealand, plus LATAM. ## Products - [Managed Messaging Gateway](/managed-messaging): Routing, vendor management, OTP resilience and 24/7 escalation across SMS, RCS, WhatsApp and Viber. - [Managed Gateway as a Service](/managed-gateway-as-a-service): Outsourced operational layer for an existing messaging gateway. - [Messaging Gateway as a Service](/messaging-gateway-as-a-service): Fully managed gateway with multi-vendor failover and 99.99% SLA. - [Messaging as a Service](/messaging-as-a-service): API-first managed messaging stack across every channel and vendor. - [Messaging & OTP APIs](/api): Single API for SMS, RCS, WhatsApp and OTP with multi-vendor failover and per-route delivery data. - [OTP API](/otp-api): Verification API with sub-second routing, retries and observability. - [CPaaS Platform](/cpaas): Customer journeys, AI message recommendations and bulk campaigns across SMS, RCS, WhatsApp, email and voice. - [Bridge Workspace](/bridge): AI-powered workspace for relationship-led teams — WhatsApp, email, calls and CRM context in one inbox. - [Short Links](/short-links): Branded short-link service for messaging campaigns and notifications. ## Solutions - [Aggregator in a Box](/solutions/aggregator-in-a-box): Stand up your own messaging aggregator with managed routing, billing and vendor onboarding. - [Adobe Marketo Integration](/solutions/adobe-marketo): Add SMS, RCS and WhatsApp to Marketo journeys via webhook with multi-vendor routing. - [Bridge Solution](/solutions/bridge): Bridge for relationship-led customer teams. ## Use cases - [OTP Resilience](/use-cases/otp-resilience): Multi-vendor failover and route scoring for one-time passwords. - [OTP Verification](/use-cases/otp-verification): Verification flows with managed delivery and observability. - [Multi-Vendor Routing](/use-cases/multi-vendor-routing): Per-country, per-channel routing across SMS, RCS and WhatsApp vendors. - [Cost Optimisation](/use-cases/cost-optimisation): Category-aware routing, BYOV and ongoing vendor commercials review. - [Vendor Escalation](/use-cases/vendor-escalation): One operational layer that owns escalation across vendors and carriers. - [WhatsApp Operations](/use-cases/whatsapp-operations): Templates, category-aware routing and BSP escalation for WhatsApp Business. - [BPO Customer Outreach](/use-cases/bpo-customer-outreach): Messaging layer for BPOs running campaigns on behalf of B2C clients. - [Healthcare Shift Fill](/use-cases/healthcare-shift-fill): SMS and WhatsApp shift-fill workflows for healthcare staffing. ## Conversion content - [How to Fix OTP Delivery Issues](/otp-delivery-issues): Why verification messages fail and how to improve reliability without rebuilding your stack. - [CPaaS vs Multi-Vendor Messaging](/cpaas-vs-byov): Comparison of CPaaS platforms with a managed multi-vendor approach. ## Regions - [Regions Overview](/regions): Managed messaging operations across all served regions. - [UK & Ireland](/regions/uk-ireland): UK GDPR compliant, ICO-aligned messaging operations. - [United States](/regions/united-states): 10DLC, toll-free and short-code messaging across US carriers. - [Canada](/regions/canada): SMS, RCS and WhatsApp operations across Canadian carriers (CASL/PIPEDA-aware). - [Singapore](/regions/singapore): SSIR-registered SMS, WhatsApp and RCS for Singapore (PDPA-compliant). - [Australia & New Zealand](/regions/australia-new-zealand): Sender-ID-aware SMS, RCS and WhatsApp across AU and NZ. ## Company - [About](/about): Messaging operations specialists for SaaS platforms and enterprises. - [Trust, Security & Compliance](/trust): GDPR, UK GDPR, PIPEDA, PDPA and Privacy Act compliant operations. - [Contact Sales](/contact): Talk to the messaging operations team. - [Book a Messaging Review](/book): 30-minute review of routing, deliverability and vendor mix. - [Support](/support): Operational support for managed customers. - [Resources](/resources): Guides, comparisons and use cases. - [Blog](/blog): Field notes on OTP resilience, multi-vendor routing and gateway operations. - [Docs](/docs): Product and integration documentation. ## Optional - [Privacy](/privacy): Privacy policy. - [Terms](/terms): Terms of service. - [Cookies](/cookies): Cookie policy. - [Ethics](/ethics): Ethics policy. - [A2P SMS Delivery — Practitioner's Guide](/blog/a2p-sms-delivery-practitioners-guide) - [Messaging Infrastructure 2025/26](/blog/messaging-infrastructure-2025-26) - [Metrics That Predict OTP Success](/blog/metrics-that-predict-otp-success) - [Multi-Channel Fallback Chain](/blog/multi-channel-fallback-chain) - [The Quiet Replatforming of Customer Messaging](/blog/quiet-replatforming-of-customer-messaging) - [Reducing Debtor Days With Verified Channels](/blog/reducing-debtor-days-with-verified-channels) - [Transactional vs Marketing Traffic](/blog/transactional-vs-marketing-traffic) - [What 99.99% Gateway Actually Means](/blog/what-99-99-gateway-actually-means) - [Why SaaS Platforms Outsource the Messaging Gateway](/blog/why-saas-platforms-outsource-messaging-gateway)