VoIP/SIP Engineer for AI Voice Integration

We are looking for an experienced VoIP/SIP engineer with expertise in AI voice integrations. We have already integrated our AI Personal Assistant platform with ElevenLabs and Retell AI. Inbound calls are working successfully across Analog, SIP, Public IP, and CGNAT environments... (Budget: $250 - $750 USD, Jobs: Asterisk PBX, ElevenLabs, Linux, Retell AI, SIP, Voice Talent, VoIP)