I am looking for an experienced VoIP/PBX developer to create a complete VoIP calling system from scratch and integrate it into my existing Django-based CRM. The goal is to enable users to make and receive calls directly from the CRM interface using a secure and reliable VoIP solution. Requirements: Setup of VoIP or PBX system (Asterisk, FreePBX, or any suitable open-source solution)
SIP trunk configuration for call routing
WebRTC or softphone integration for browser-based calling
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