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Welcome to DialStack

Business Voice for Vertical SaaS

DialStack is a multi-tenant SIP PBX platform API that lets you embed phone systems directly into your vertical SaaS application.

Why DialStack?

  • Multi-tenant by design - Each of your customers gets isolated phone service
  • Simple REST API - Create users and assign phone numbers with a few API calls
  • WebRTC & SIP - Softphones, desk phones, and mobile apps — all auto-provisioned
  • Built for scale - Runs on AWS with multi-region support
  • Developer-friendly - OpenAPI spec, SDKs, and comprehensive docs

Quick Example

# Create a user
curl -X POST https://api.dialstack.ai/v1/users \
-H "Authorization: Bearer sk_live_YOUR_KEY" \
-H "DialStack-Account: acct_01h2xcejqtf2nbrexx3vqjhp41" \
-H "Content-Type: application/json" \
-d '{
"name": "Dr. Alice Smith",
"email": "alice@example.com"
}'

# User is ready — assign a phone number, provision a desk phone,
# or connect via WebRTC softphone

Get Started

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