Build Reliable VoIP & CRM Automation with Twilio & KommoCRMBuild Reliable VoIP & CRM Automation with Twilio & KommoCRM
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started
Enterprise-Grade VoIP & CRM Automation (Twilio + Make.com + KommoCRM)
Project Overview: Development of a highly reliable, serverless VoIP telephony architecture for a US-based sales team. The goal was to build a flawless, automated connection between Twilio and KommoCRM, completely eliminating lost leads and the technical limitations of standard mobile SIP clients.
How the System Works (Key Features):
Hybrid Routing (SIP + GSM): Inbound calls are routed directly to managers' GSM cell phones to bypass iOS background restrictions. Outbound calls can be made via a SIP app (Zoiper) or through a custom GSM Callback feature (dialing from a personal cell via Twilio), keeping the corporate Caller ID strictly masked and STIR/SHAKEN compliant.
Stateless Round-Robin & Sticky Routing: New clients are distributed 50/50 among sales reps using a time-based routing algorithm. Returning clients bypass the queue and are instantly routed to their dedicated Account Executive via CRM database queries.
TwiML State Machine: A custom-built State Machine in Make.com tracks real-time call statuses. If a manager hangs up, the system forces a client-side disconnect, preventing phantom voicemails and duplicate CRM logs (a common issue with sequential TwiML).
Ghost Call Interceptor: "Short abandoned calls" (e.g., a client drops the call during the first few seconds of the voicemail greeting) are accurately flagged as Missed Calls. The system automatically creates emergency tasks in the CRM, ensuring zero lost leads.
Direct CRM Audio Playback: All call recordings are downloaded from Twilio and stored in Dropbox. Direct links (?raw=1) are sent to KommoCRM, allowing managers to play calls directly inside the CRM interface without Google Drive CORS errors.
Tech Stack: Twilio (Programmable Voice, TwiML), Make.com (Webhooks, Routers, API integrations), KommoCRM, Dropbox.
Need a scalable, fail-safe VoIP architecture for your business? Whether you need to integrate Twilio with your CRM, build custom routing logic, or fix dropped calls — I can design a custom system tailored to your sales process. Send me a message to discuss your project!
Post image
Back to feed
The network for creativity
Join 1.25M professional creatives like you
Connect with clients, get discovered, and run your business 100% commission-free
Creatives on Contra have earned over $150M and we are just getting started