Callstream AI
The #1 Hospitality AI & Voice AI Platform

Revolutionizing Guest Communication
Across Hospitality

Voice · Messaging · Email · Agents — four branded products on one hospitality AI platform. Five channels. SOC 2-aligned architecture. 30+ years of operator experience behind it.

Call Stream Voice
Call Stream Messaging
Call Stream Email
Call Stream Agents
Our Origin

Not another Silicon Valley AI startup.
A 30-year contact center BPO.

Call Stream AI is built by operators. We're a large BPO that has been running contact centers — handling guest and customer experience for hospitality and customer-facing brands — for over three decades. Long before LLMs existed. We didn't guess what hospitality needs. We built the platform we always wished we had.

30+
Years of Guest & Customer Experience
Running large-scale contact centers as a BPO — guest & customer experience operations for hospitality and beyond
5M+
Guest Interactions
Conversations handled across voice, SMS, email, chat, and WhatsApp — production-tested at scale
100%
Built by Operators
Designed by the people who actually answered the calls — every workflow tested before AI ever touched it
The Difference
We know what hospitality needs because we've been delivering guest & customer experience for three decades as a contact center BPO. Call Stream AI is operator experience encoded in a platform — not a tech demo retrofitted for hotels.
What Makes Us Different

Built for hospitality.
From the inside out.

A purpose-built AI stack — not a generic chatbot retrofitted for hotels. Cascading frontier models, custom RAG per venue, native hospitality integrations.

Cascading LLM Architecture
Anthropic, OpenAI, and Google Gemini routed in real time to the best model for each function call. No vendor lock-in.
  • 99.7% uptime · <500ms response
  • 3 frontier model providers
  • Cost & latency optimized per call
Custom RAG per Venue
Every property gets its own AI knowledge base — menus, policies, brand voice, hours, seasonal promotions.
  • Your brand voice, not a bot
  • 40+ languages supported
  • Knowledge base versioning
Native Hospitality Integrations
Oracle Opera, Maestro, Agilysys, Resy, OpenTable, HotSOS — 17+ deep platform connections. Plus 3,000+ apps via Pipedream MCP.
  • 17+ native hospitality platforms
  • 3,000+ apps via MCP
  • REST API for custom workflows
Front + Back of House
One platform across 5 guest channels for the front of house, plus operational intelligence embedded in Microsoft Teams and Slack.
  • 5 channels, one unified AI
  • Operational intelligence in Teams & Slack
  • Same brain, both sides
The Call Stream Suite

Four Products. One Platform.

Branded products designed for the way hospitality actually works. Buy what you need — they all run on the same platform.

Voice Agents
Call Stream Voice
Voice AI that answers every inbound call in under 500ms — 24/7, in 40+ languages.
  • <500ms · 24/7 · 40+ languages
  • 78% first-call resolution
  • Cascading LLM routing
  • Sealed by Call Stream Verify
Unified Messaging
Call Stream Messaging
Unified messaging platform for SMS and MMS — with shared inboxes for your team and AI.
  • SMS & MMS messaging
  • Unified, shared team inboxes
  • AI-assisted, human-led or automated
  • Smart routing & escalations
AI Email Orchestration
Call Stream Email
Inbox intelligence for hospitality. Triage, draft, and respond automatically — or in assist mode.
  • Inbox triage & intent classification
  • Assist or fully automated mode
  • Auto-drafts from your knowledge base
  • Reservations, groups & recovery
Internal & Guest-Facing
Call Stream Agents
AI agents on both sides — WhatsApp, website chat, and in-app chat for guest support, plus internal staff assistants in Microsoft Teams and Slack.
  • Guest: WhatsApp · website chat · app chat
  • Internal: Microsoft Teams & Slack
  • Custom agents trained on your SOPs
  • Knowledge retrieval & workflow execution
Customization

Built bespoke for every property.
Not a generic AI bot.

Every Call Stream deployment is built from the ground up — your menus, policies, brand voice, segmented data sources, and approved sources of truth. With guardrails that ensure the AI never uses information you didn't sign off on.

Built Per Property
Every deployment designed from scratch for your venue. Brand voice, workflows, escalation paths — your AI sounds like you, not a template.
  • Custom brand voice & tone
  • Workflows mapped to your operations
  • No two deployments alike
Segmented Data Sources
Custom RAG per property. Data is isolated per client, and each department is scoped independently — your menus, policies, and SOPs never bleed across tenants or teams.
  • Custom RAG per property
  • Per-tenant data isolation
  • Departments scoped independently
  • Versioned & auditable
Approved Sources of Truth
Every fact the AI delivers traces back to a source you've approved. No hallucinations from random web pulls. No drift from your policies.
  • Every answer traceable to a source
  • No public-web fallback
  • You approve every fact
Guardrails by Default
Hard-coded rules that prevent the AI from using unapproved information, leaking sensitive data, or going off-script. Your AI stays in its lane.
  • Topic & policy guardrails
  • PII & payment redaction
  • Escalates rather than guesses
The Difference
Generic AI products give every customer the same model with a thin prompt wrapper. Call Stream is built per property — like commissioning a private chef, not buying a frozen meal.
Managed Solution

Not a chatbot you set up once.
A fully managed AI service.

Behind every Call Stream deployment is a team of operators — QA reviewers, account managers, sentiment analysts — running, watching, and tuning the AI in production. This isn't fire-and-forget.

Human-in-the-Loop QA
A dedicated QA team reviews AI conversations daily — catching edge cases, refining responses, and feeding improvements back into the knowledge base.
  • Daily conversation reviews
  • Edge cases caught & resolved
  • Knowledge base updated continuously
Dedicated Account Managers
Every account gets a named account manager. Quarterly business reviews, performance reporting, and a direct line to the team that built your deployment.
  • Named AM per account
  • Quarterly business reviews
  • Direct line, not a ticket queue
Native Sentiment Analysis
Both transcript-based and emotion-based sentiment built into the platform. Catch dissatisfied guests in real time — before they leave a 1-star review.
  • Transcript & emotion analysis
  • Real-time alerts on negative sentiment
  • Service recovery triggered automatically
Continuous Optimization
The AI gets smarter every week. New scenarios, seasonal promos, menu changes, edge cases — handled by the team that runs it, not your IT department.
  • Weekly tuning & improvements
  • Seasonal & campaign updates managed
  • No internal IT lift required
The Difference
Most AI products hand you a dashboard and wish you luck. Call Stream hands you a team that runs the platform with you — 30+ years of operator experience embedded in the service, not just the software.
Enterprise Security

Security by architecture.
Not afterthought.

SOC 2-aligned platform with cryptographic call integrity, multi-cloud redundancy, and zero external AI proxy risk. Built to pass enterprise procurement on day one.

Call Stream Verify
Cryptographic Call Integrity
SHA-256 hashing with an append-only audit chain. Every call record is canonicalized and sealed — tamper-evident, deterministically verifiable, and continuously auditable. First in hospitality AI.
  • SHA-256 deterministic hashing
  • Append-only, hash-linked audit chain
  • Independently recomputable at any time
SOC 2 Aligned
All 5 Trust Service Criteria
Complete alignment across Security, Availability, Processing Integrity, Confidentiality, and Privacy. Every vendor in the stack — Twilio, AWS, Google Cloud, Supabase, Render, GitHub — is SOC 2 compliant or aligned.
  • RBAC + workflow-enforced validation
  • Multi-cloud redundancy (AWS + GCP)
  • GDPR · PCI DSS · TCPA · CASL aligned
Platform, Not an AI Proxy
Zero External Proxy Risk
Native multi-model cascading across Anthropic, OpenAI, and Google Gemini is built into the platform itself. No centralized credential aggregation. Eliminates the LiteLLM-style supply chain attack surface entirely.
  • Native cascading — no proxy layer
  • No centralized credential aggregation
  • Direct frontier-model relationships
Context-Aware PII Protection
Multi-Tenant Isolation
Supabase Row-Level Security combined with function-level permissioning. The platform knows which data is sensitive and enforces access at every step — not just at the perimeter.
  • Row-Level Security per tenant
  • Function-level permissioning
  • PII-aware consent & redaction rules
Full security details & architecture at security.callstreamai.com
Results

Real Numbers.
Real Outcomes.

78%
First-Call Resolution
Guest issues fully resolved on the first interaction — no callbacks, no escalations needed
67%
Booking Conversion
AI-handled interactions converting to confirmed reservations and amenity bookings
100%
Calls Answered
Every inbound call picked up — zero missed contacts, zero after-hours gaps, 24/7
<750ms
Latency
99.7%
Uptime SLA
40+
Languages
5M+
Guest Interactions
Traction & Credentials

Deployed With Award-Winning Leaders

The only AI approved for Michelin-rated, Forbes Five-Star, and Condé Nast award-winning properties worldwide

Luxury Lifestyle
Starwoods Hotels
Iconic Resort
Fontainebleau Development
Luxury Hotel Chains
JW Marriott
Hospitality Group
Barlington Group
Real Estate & Hospitality
ERES Companies
Michelin Star
Restaurants
Michelin Key
Hotels
Forbes
Five-Star
Condé Nast
Traveler
World Travel
Awards
Five Star
Diamond Award
5+
Enterprise Deployments
Active and in implementation across multiple hospitality verticals
5M+
Guest Interactions
Processed across voice, SMS, email, chat, and WhatsApp with 99.7% uptime
3,000+
Integrations
17+ native hospitality platforms plus 3,000+ apps via Pipedream MCP
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