Sipwise NGCP Expert Needed – Ongoing Administration, SIP Debugging

We are looking for an experienced OpenSIPS developer to help debug fix and optimize an existing OpenSIPS setup used in a WebRTC-to-SIP gateway architecture. · ...

Expert-level session for reviewing an existing WebRTC or SIP setup, debugging call quality or signaling issues, helping integrate Twilio or SIP trunks, or advising on architecture. · ...

We're looking for an experienced Voice / Telephony Engineer to help us stabilize and complete an AI-driven call center integration. · This is not a generic chatbot project. The AI layer already exists. The challenge is at the telephony and call-flow level: SIP, inbound/outbound c ...

We are looking for a hands-on telecom specialist to complete the setup and stabilization of a GSM gateway connected to a SIP server. · ...

We are looking for an experienced SIP & VoIP Engineer to support the integration and patching of SIP telephony for a Real-Time Translation (RTT) voice solution. · ...

We are seeking a Senior Backend & SIP Engineer to build and stabilize the real-time media layer for our Real-Time Translation (RTT) Voice Solution. · The platform streams live calls through SIP telephony and WebRTC clients into an AI pipeline: · SIP / WebRTC → STT → LLM Translati ...

We have an AI Voice Agent that does real-time bidirectional audio streaming via WebSocket. We currently do not have SIP infrastructure and need an expert to build it. · We want our AI agent to integrate into customers existing phone systems (PBX/SIP and/or CCaaS). The AI agent sh ...

We · are looking for an expert-level FreeSWITCH / VoIP engineer.This is not a greenfield build and not a PBX setup task. · The system is already live and running, · FreeSWITCH · LINUX servers · - Express backend services · API integrations · Custom IVR prompts,TTS playback,and ...

We are looking for a senior carrier-grade SIP/VoIP engineer to urgently configure SIP signaling and media interop between a secure softswitch and a legacy SBC using Kamailio and RTPengine. · ...

We're building an AI voice agent for call centers integrating telephony using LiveKit. · Our AI agent communicates via WebSockets real-time audio + events. We need an experienced engineer to connect SIP/PSTN calls into LiveKit bridging them cleanly to our agent. · This is a hands ...

We are looking for an experienced developer to create a Real Time Voice Translation Tool that integrates seamlessly with Microsoft Teams. · Design and build a Microsoft Teams application that enables Real-Time Voice Translation inside Teams · ...

I'm looking for an experienced VoIP engineer to coach someone who is new to VoIP through a structured training program. · ...

We are building a multi-tenant AI platform that delivers human-like voice conversations across WebRTC and PSTN phone calls via SkySwitch. · ...

We are looking for a highly experienced WebRTC / Asterisk engineer to build a complete end-to-end VoIP system from scratch.Please apply only if you are fully confident you can deliver. · ...

We are looking for a highly experienced freelancer with proven production experience working with Yeti Switch and Ruby on Rails. · ...

We are seeking an experienced developer or development team to integrate an existing AI-powered cold calling agent with 3CX for seamless call transfers to live human agents. · ...

We are seeking an experienced developer or development team to integrate an existing Ai agent with 3cx for seamless call transfers to live human agents. ...

We are seeking an experienced developer or development team to integrate an existing AI-powered cold calling agent with 3CX for seamless call transfers to live human agents. · Integrate an existing AI cold calling agent with 3CX · , Enable smooth call transfers from the AI agent ...

We are looking for a C#/.NET developer to fix WebSocket multi-session bug and deploy an ASP.NET app on IIS. The primary task is to investigate and fix the bug in the application that handles multiple calls concurrently. · Investigate and fix the bug where multi-session handling i ...

We are building production-grade voice-based conversational AI solutions for business automation.The goal is to achieve a stable, working inbound call flow where calls reach the AI agent correctly. · ...