SIP REFER fix: Vapi, Twilio, PBX

Job Description · We are building a custom AI-powered phone system for a medical practice and are seeking an experienced VoIP / telephony engineer to review and stabilize the current architecture. · This is not a request to deploy an off-the-shelf virtual PBX solution. The goal i ...

Deploy 3CX on an on-prem Windows Server for a 50–100 user call center. · ...

Need to have 2 shared park lines with hold music that is accessible to 3 desk phones to use. · ...

+ Hello I have a social audio video streaming web based app, PWA, + · I need someone that's very familiar with live kit.+We're getting a few glitches when people go on camera, some static, some microphone not responding issues,The contract duration is less than 1 month and the wo ...

We are looking for an experienced professional to help ensure our company phone using the Dialpad system is not incorrectly labeled as spam. · The ideal candidate will have a strong understanding of phone systems, spam filters and best practices for maintaining a positive busines ...

VoIP Specialist Needed (SIP, Troubleshooting, and Call Flow Optimization) · We are looking for an experienced VoIP Specialist to help set up, configure, troubleshoot, and optimize our VoIP system. The ideal candidate has strong experience with SIP, PBX systems, and call routing i ...

Hello, I need professional support to review and correct the configuration of my 3CX system. At the end, I would appreciate a brief report indicating what was found and what was corrected. · ...

We are building a proprietary all-in-one communication platform (Email,CRM,AI Replies)and need a specialist to build the entire telephony layer from the ground up. · We have in-house developers for our CRM and JTL-Wawi integration.Your job is to build the Telephony Engine and pro ...

I need built a self-serve inbound call routing SaaS that works similarly to Ringba but much simpler and cheaper focused on static call routing not a bidding marketplace Users must be able to Create their own accounts Add a credit card Buy or assign phone numbers Configure call ro ...

We are looking for an experienced developer or small team to help build an AI-powered call handling platform for automotive dealerships. The system will answer inbound calls, understand caller intent, collect key information, and transfer calls to the appropriate department when ...

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 ...

+ Build production-ready AI voice agent + Qualify leads in real-time using explicit business rules + Calculate qualification score live during conversation · + Detect and respond to verbal objections · + Perform warm transfer to buyer on same call · + Deliver concise verbal summ ...

looking to build a GOIP-based calling system integrated with a CRM to support our sales team in making outbound promotional calls to potential clients. · The goal is to create a simple but powerful sales communication system where agents can call leads, track conversations, and a ...

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. ...