Asterisk PBX Jobs

We have an Android mobile dialer application that is set as the default phone app. The app supports: GSM/SIM-based calling SIP/VoIP calling We need to implement a feature that allows conference calling between: One GSM call One SIP call Requirement When a GSM call is active and a SIP call is active, the user should be able to merge them into a single conference call so that all participants can talk together. Technical Expectations Experience with Android Telecom framework Experience working with: Connection Service In Call Service SIP stack (PJSIP or Android SIP API) Handling audio routing between GSM and SIP Managing call states and audio focus Proper call merge / conference implementation Clean and stable solution Important Notes The app is already functioning for individual GSM and ...

I need a complete SIP trunk platform configured to issue USA DID numbers and deliver ready-to-use SIP credentials for a blended (inbound + outbound) call-center environment. The system has to sustain 51–200 concurrent calls with consistent audio quality and tight security. Call recording, an IVR designer, and detailed call analytics/reporting must be native features, not bolt-ons. I am happy to work with an open-source stack such as Asterisk or FreeSWITCH, a commercial carrier API, or a hybrid approach—whichever lets us scale quickly while keeping ongoing costs predictable. TLS/SRTP support, automatic fail-over to a secondary trunk, and the ability to order, port, and manage DIDs on demand are essential. Deliverables • Deployed, fully tested SIP trunk platform with at ...

I need both Twilio and GoHighLevel fully configured so my software company can finally manage customer relationships from a single, automated hub. Twilio will handle all outbound and inbound communication—SMS, voice calls, and email notifications—while GoHighLevel becomes the front-end CRM that tracks every touchpoint. Here’s what has to happen: • Connect existing Twilio and GoHighLevel accounts, authenticate numbers and senders, and confirm deliverability for SMS, voice, and email. • Turn on the core CRM modules inside GoHighLevel, set up custom pipelines that reflect our sales and support stages, and import a small starter list for testing. • Build automated workflows that trigger from form fills, deal stage changes, or support requests, routing mes...

We are hiring a capable team to deliver the first production module of an AI system that performs automated cold calls, speaks in Singlish, qualifies prospects, and books meetings. Only apply if you have previous production deployments in voice AI calling. Scope of Phase 1 Lead Handling Google Sheets ingestion status updates Outbound AI Conversation automated dialing dynamic script execution interruption & objection handling Booking calendar availability conflict prevention event creation invite sending Callback Automation schedule future redials maintain conversation continuity Expectations You must provide: clear system architecture role division in your team delivery timeline scalability approach reliability & monitoring strategy Required Expertise Your team should coll...

We are building a voice AI assistant that can automatically talk to customers over phone calls and handle real business conversations in multiple Indian languages (Hindi, English, and other regional languages). The system should: • Receive incoming customer calls • Answer queries (fees, services, timings, status, due payments, support requests) • Make automated outbound calls (appointment confirmations, reminders, lead follow-ups, collections) • Transfer the call to a human agent when required This is NOT a keypad IVR. The assistant must understand natural spoken language from callers and respond with a natural-sounding voice. Technical Scope: • SIP/VoIP integration using Asterisk or FreeSWITCH • Real-time Speech-to-Text • Text-to-Speech voice response...

Looking for Sound Engineer – Live Voice Transmission Optimization (Hardware + Embedded) I am currently looking for an experienced Sound Engineer / Audio Systems Engineer who is capable of working on live voice transmission from a tablet to standalone hardware such as Raspberry Pi / ESP32-based systems. * The product is already built and functional * The requirement is mainly for optimization, testing, and technical feedback * Focus areas include: audio transmission stability reduction quality optimization –software integration feedback 5.Real-world performance testing This is a great opportunity if you have experience with: * Embedded audio systems * Live streaming audio pipelines * IoT audio hardware * Signal processing for voice transmission If you have worked on similar ...

We need an AI receptionist that can handle incoming calls in a polite, natural, and professional manner. When someone calls, it should greet the caller, ask who they would like to speak with, and then intelligently route or transfer the call to the appropriate person or phone number. In addition, the AI should be able to detect if the caller is not comfortable speaking English and smoothly switch to another language (or offer a language choice) to ensure clear and comfortable communication.

US-Based freelancers ONLY preferred (USA location required for time zone alignment with Northern California – PST preferred). No exceptions – please confirm your location in your proposal. All communication via this platform only—no phone calls, emails, or external contact needed until hired. Budget: $250 FIXED (premium for fast, high-quality delivery from a proven expert – ideally completed in 1–3 days, today/tomorrow if possible). Full, complete one-time GoHighLevel setup project (expected 2–5 hours total) for a local home services business: 1. Port an existing Verizon number (ten-digit local CA number – details provided securely after hire) to Twilio for full inbound/outbound SMS and voice calls. Handle all porting paperwork/requirements (acc...

I need help with a technical issue on Linphone, integrated with FusionPBX. I’m on a custom-built version of Linphone. Current Problem: - Calls do not come through at all when the app is in the background Requirements: - Expertise in VoIP, FusionPBX, and Linphone, especially with custom builds - Proven experience with similar issues Ideal Skills: - Strong background in mobile VoIP applications - Familiarity with both iOS and Android systems - Ability to troubleshoot and resolve background operation issues Please only bid if you have relevant experience.

I need a reliable professional who can take over my customer service line and focus solely on answering incoming inquiries. Calls are usually straightforward questions about product availability, basic troubleshooting, and shipment status, but they set the overall tone of the brand, so every interaction must feel warm, clear, and resolved on the first attempt whenever possible. This is strictly phone support—the live chat and email channels are handled internally for now—so you should be comfortable working with a soft-phone or VoIP setup, keeping concise call notes in our CRM, and following simple escalation rules for anything you can’t solve during the first call. Key deliverables include: • Consistently picking up within our agreed-upon ring window &bull...

WebRTC Call Recording Issues in Desktop Dialer (JsSIP) We are working on a desktop VoIP dialer built using JsSIP and WebRTC and are facing multiple issues related to audio call recording that need to be analyzed and fixed. Issues Observed 1. Conference Call Recording Controls o User-facing Start / Stop recording buttons do not work reliably during conference calls. o Recording sometimes does not include all participants or does not stop correctly. 2. Critical: Background Audio Recording o Audio recording sometimes continues or restarts without explicit user action or permission. o This is a privacy and browser policy compliance issue and must be handled strictly via user consent and proper MediaStream cleanup. 3. Recording Failure During Multiple Calls o When handling multiple or consecuti...

I'm looking for someone to read a casual voicemail script for our company. Requirements: - Record a casual-toned voicemail - Include company name and callback details - Prompt callers to call our service number Ideal Skills: - Clear voice - Good pronunciation - Experience with casual tone voiceovers Please provide a sample of your voice. this will be the script “Hi, you’ve reached Fuzion3. We’re not available at the moment, but we’d still love to help. For immediate service, please call our concierge team at 949-539-4933. Thanks for calling!”

I need an end-to-end implementation of Zoom Contact Center. The project covers designing, configuring, and launching the full environment so my team can handle Live chat, Voice calls, Video calls, traditional Email tickets, and inquiries triaged by the Zoom Virtual Agent—all from the same pane of glass. Scope Right now I have Zoom licences in place but no contact-center instance configured. I want you to build the entire workflow: inbound routing rules, IVR menus, chat and video queues, email hand-off, skill-based distribution, and the knowledge base that powers the Virtual Agent. SSO must be enabled and user roles defined so agents, supervisors, and admins see only what they need. Basic dashboard and historical reports should be ready from day one. Tools & integrations You wil...

I’m ready to deploy an AI-driven voice agent built on the stack that can take real-time phone conversations off my plate and keep our sales pipeline moving. The mandate is clear: • Purpose: pure sales support—no generalized customer service scripts—so every interaction must prioritize moving prospects toward a close. • Tasks: the agent needs to qualify inbound leads against a short set of questions I’ll provide, automatically schedule or transfer hot prospects, and run friendly, timely follow-up calls that nudge colder leads back into the funnel. • Call direction: it should handle both inbound and outbound calls seamlessly, switching context without awkward hand-offs. I’ll supply brand guidelines, objection-handling notes, and CRM API key...

I need a fluent English speaker who can jump straight into handling both inbound and outbound calls with our business partners. The role sits at the intersection of customer happiness and light technical troubleshooting, so you’ll spend most of your day guiding partners through product-related questions, documenting each interaction in our CRM, and making sure every conversation follows the script and brand tone I’ll provide. Because you’ll be the first voice many partners hear, I’m looking for someone who stays calm when lines are busy, keeps notes organised, and can translate a technical answer into plain language on the fly. Prior technical support experience is essential—if you’ve ever walked someone through a configuration step or explained why a...

I need a proven Airtel Black SIP configuration running on my Ubuntu machine and handled through Linphone. The goal is a clean, documented initial setup—no trial-and-error learning on my system, please. If you have already registered an Airtel SIP trunk on Linux, you’ll know the exact registrar format, the unusual port mapping Airtel uses, and the little tweaks that keep audio flowing both ways behind NAT. Here’s the workflow I’m expecting: • Install or verify the latest Linphone and any required dependencies on my Ubuntu box. • Register the Airtel Black SIP account, applying the correct proxy, authentication string, and codec priorities. • Prove the setup with at least one inbound and one outbound call (I can join you on a test call). •...