# Talkloo > Talkloo is an omnichannel communications platform (CPaaS). It unifies SMS, WhatsApp Business API, WhatsApp Calling, RCS Business Messaging, Email, Voice/VoIP, SIP trunking, DID phone numbers, a no-code Flow Builder and AI voice/chat agents behind one dashboard and one REST API. It is used by enterprises, call centres, financial services, healthcare, government and logistics teams as an alternative to Twilio, Infobip and messaging-only unified APIs such as Sent.dm. Key facts: - One REST API: POST /v1/messages (channel = sms | whatsapp | rcs | email, with fallback order), POST /v1/calls (PSTN, SIP, WhatsApp), numbers/DID and SIP trunk provisioning, Flows API, AI Agents API, signed webhooks. - Official WhatsApp Business Platform (BSP onboarding, 24–72 h activation). No grey routes. - Plans: Starter $49/mo, Growth $199/mo, Business $499/mo, Enterprise custom; messages, minutes and numbers billed as usage. See https://www.talkloo.com/pricing - Contact: info@talkloo.com · +1 425 541 4212 · https://www.talkloo.com/contact ## Messaging - [SMS API](https://www.talkloo.com/sms): Bulk SMS, OTP and transactional texting - [WhatsApp Business API](https://www.talkloo.com/whatsapp-business-api): Official WABA messaging and inbox - [RCS Business Messaging](https://www.talkloo.com/rcs-business-messaging): Rich, verified messages with SMS fallback - [Email API](https://www.talkloo.com/email-api): Transactional & bulk email, SMTP relay ## Voice - [Voice & VoIP](https://www.talkloo.com/voice): Inbound/outbound calling, IVR, recording - [WhatsApp Calling](https://www.talkloo.com/whatsapp-calling): Voice calls inside WhatsApp Business - [Voice Broadcast](https://www.talkloo.com/voice-broadcast): Outbound voice campaigns at scale - [Voice Connectivity](https://www.talkloo.com/voice-connectivity): Carrier-grade termination & origination ## Infrastructure, automation & AI - [SIP Trunking](https://www.talkloo.com/sip-trunking): Elastic SIP trunks for PBX and call centres - [DID Numbers](https://www.talkloo.com/did-management): Local, mobile and toll-free numbers in 60+ countries - [Flow Builder](https://www.talkloo.com/flow-builder): No-code omnichannel automation - [AI Agents](https://www.talkloo.com/ai-agent): Human-like voice and chat agents - [Omnichannel API](https://www.talkloo.com/omnichannel-api): Developer overview of the unified REST API. - [B2B Platform](https://www.talkloo.com/b2b-platform): Unified omnichannel communication for enterprises. ## Comparisons - [Talkloo vs Twilio](https://www.talkloo.com/compare/twilio-alternative): Omnichannel CPaaS alternative - [Talkloo vs Infobip](https://www.talkloo.com/compare/infobip-alternative): Enterprise platform alternative - [Talkloo vs Sent.dm](https://www.talkloo.com/compare/sent-dm-alternative): Unified messaging API alternative ## Industries - [Financial Services](https://www.talkloo.com/financial-services): OTP, fraud alerts and AI banking communication - [Healthcare](https://www.talkloo.com/healthcare): Patient reminders, results and AI support - [Government](https://www.talkloo.com/government-solutions): Secure citizen engagement at scale - [Transportation & Logistics](https://www.talkloo.com/transportation): Real-time alerts and driver communication - [Digital Natives](https://www.talkloo.com/digital-natives): Startups and digital-first businesses ## Company - [About Talkloo](https://www.talkloo.com/about): What Talkloo is, who it serves, how to contact us. - [Pricing](https://www.talkloo.com/pricing): Platform plans and usage rates. - [Contact](https://www.talkloo.com/contact): Book a demo or request API access. ## Optional - [Privacy Policy](https://www.talkloo.com/privacy) - [Terms of Service](https://www.talkloo.com/terms) - [Refund Policy](https://www.talkloo.com/refund-policy)