Co SIP
Enterprise VoIP & Call Management
Co SIP is designed as a three-part platform for enterprise communication needs: an Electron-based desktop SIP client, a Fastify-built central management API, and a React-based admin panel. Thanks to CRM integration, calls are matched instantly with customer records, maximizing team efficiency.
Platform Components
Three components, one ecosystem. Each can run independently, and gets stronger running together.
Co SIP Desktop
Electron + React + TypeScript
A desktop SIP client for Windows and macOS. Making/receiving calls, hold, transfer and CRM integration.
- Hold/Resume — SIP re-INVITE
- Transfer — REFER method
- CRM webhook automation
- B2BUA provider support
- Multiple SIP accounts
Co SIP API
Node.js + Fastify v4 + TypeScript
An enterprise API that centrally manages organizations, users and SIP accounts.
- JWT + refresh token auth
- Organization management
- SIP account configuration
- CRM integration management
- Device & license tracking
Co SIP Panel
React + Vite + Tailwind CSS
A web-based control panel for administrators. User, SIP account and integration management.
- User management
- Add/edit SIP accounts
- CRM integration settings
- Device management
- Token refresh interceptor
Call starts, customer card opens
Co SIP automatically matches the caller number with the CRM. Customer information is on your screen before you even answer. Webhook security is ensured with HMAC-SHA256 signing.
Call Starts
The user makes or receives a call via Desktop.
Automatic Matching
Desktop matches the caller number by sending an HTTP request to the CRM.
Customer Card Opens
The matching customer card is automatically brought to the front in the CRM.
Event Logging
call_started, call_held, call_resumed and call_ended events are sent to the CRM.
CRM Events
call_startedFired when a call starts
call_heldWhen a call is put on hold
call_resumedWhen resumed from hold
call_endedWhen the call ends, with duration
Customer CRM data never enters the central system. Desktop sends an HMAC-signed webhook directly to the customer's CRM. Data isolation is preserved.
Transform your communication with Co SIP
Get in touch for a demo, setup, or integration support.