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I need a complete VoIP call-center setup that plugs seamlessly into my Bitrix24 account. The platform must handle 20 simultaneous users split between Sales and Customer Support while remaining easy for agents to learn and inexpensive to run. Key requirements • Tight Bitrix24 integration: click-to-call, screen-pops, automatic CRM logging, live dashboards and wallboards viewable inside Bitrix24 so supervisors can track queue metrics in real time. • Multilingual handling: English and Polish ready at launch, with the system structured so a third language can be added without major rework. • AI assistance: automatic call summarisation pushed to the CRM record after every interaction plus an inline quality-control engine that flags poor audio or network issues and scores call clarity for coaching. • Solid voice quality: TLS/SRTP, jitter buffering and reliable SIP trunking so conversations remain crisp and stable even during peak load. • Two departmental routing profiles (Sales, Customer Support) including IVR, skill-based distribution, call recording, warm transfers and supervisor whisper/barge-in. • Straightforward agent interface—soft-phone, web-RTC or Bitrix24 dialler—so onboarding takes minutes, not days. • Clear documentation, admin training and a cost-projection that keeps total spend predictable once the system goes live. Deliverables 1. Architecture diagram and tech stack recommendation 2. Configured Bitrix24 PBX or third-party PBX connected to Bitrix24 via REST/web-hooks 3. Fully tested call flows, dashboards and AI modules 4. Agent/supervisor training session (recorded) and hand-off documentation I will provide the Bitrix24 account, branding assets and SIP trunk credentials; you bring the know-how to make everything hum from day one.
Project ID: 40443806
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71 freelancers are bidding on average $7,213 USD for this job

With over a decade of experience in high-complexity systems and full-stack architecture, I understand your need for a seamless VoIP call-center setup integrated with Bitrix24. Your project goal of handling 20 simultaneous users split between Sales and Customer Support, with tight Bitrix24 integration, multilingual handling, AI assistance, and solid voice quality, aligns perfectly with my expertise in delivering high-performance solutions. My strategic insight for this project includes implementing a robust SIP trunking setup to ensure crisp and stable voice quality, drawing from my past success in scaling Telegram Mini Apps to over 1 million users. I am well-equipped to handle the complexity of your project and ensure its successful implementation. I encourage you to reach out so we can discuss the roadmap for your Bitrix24 VoIP Call Center Build further. I am confident that with my skills and experience, we can create a solution that meets and exceeds your expectations.
$8,000 USD in 60 days
8.9
8.9

Interesting project, I will deliver the full VoIP call-center build inside your Bitrix24 — architecture diagram, PBX configuration with click-to-call and CRM auto-logging, two departmental routing profiles with IVR and skill-based distribution, AI call summarisation pipeline, and supervisor dashboards with live queue metrics. For the AI quality-control engine, I will deploy a lightweight post-call analysis layer that scores audio clarity using RTP stream metrics — jitter, packet loss, MOS scores — and pushes flagged calls plus summaries directly to the CRM record via REST webhooks. This gives supervisors coaching data without adding latency to live calls. Questions: 1) Are you open to a third-party PBX like 3CX or FreePBX behind Bitrix24, or do you prefer the native Bitrix24 telephony module as the base? Looking forward to discussing further. Best regards, Kamran
$5,682 USD in 30 days
8.4
8.4

Hi — Elias here from Miami. The real challenge here is not connecting a SIP trunk to Bitrix24. It’s keeping routing, CRM logging, AI summaries, call quality scoring, and supervisor visibility reliable for 20 live agents without making the setup expensive or hard to manage. A common failure in call-center builds is treating PBX, CRM, and AI as separate tools. Then click-to-call works, but screen-pops, call records, recordings, queue metrics, and post-call summaries become inconsistent. I’d approach this with a Bitrix24-connected PBX using REST/webhooks, structured Sales and Support queues, IVR, skill routing, recordings, warm transfer, whisper/barge, and live wallboards. For AI, I’d keep the workflow simple: call recording, transcription, summary, clarity/network scoring, then CRM activity update. TLS/SRTP, jitter handling, reliable SIP trunking, and clear codec choices matter early for voice quality. One question: Do you prefer using Bitrix24 telephony where possible, or are you open to Asterisk/FreePBX or a managed cloud PBX connected into Bitrix24?
$7,500 USD in 7 days
8.3
8.3

Hi there, I understand you need a complete 20-user VoIP call-center integrated with Bitrix24, including click-to-call, CRM logging, dashboards, English/Polish routing, IVR, recordings, supervisor tools, secure SIP, and AI call summaries with quality scoring. With 9+ years of experience in backend integrations, VoIP-style communication workflows, REST/webhook APIs, cloud deployment, CRM automation, analytics dashboards, and AI-assisted transcription/summarisation pipelines, I can design a stable and cost-conscious setup for Sales and Support teams. I would recommend and configure the PBX stack, connect it to Bitrix24, set up routing profiles, TLS/SRTP, SIP trunking, wallboards, call recording, AI summaries, network-quality checks, testing flows, and handover documentation with admin/agent training. Best regards, Stratos
$7,500 USD in 7 days
7.1
7.1

Hello, I see you need a full VoIP call-center integrated smoothly with your Bitrix24 account, which demands deep understanding of both telephony and Bitrix24 APIs. A key challenge is ensuring real-time call handling and data sync without latency or loss. Our team has 10+ years working with PHP backend and can integrate complex systems using Laravel and native PHP, plus frontend tools like Vue.js to create intuitive interfaces. You can check samples from our work at https://www.freelancer.com/u/eliaa. Looking forward to hearing from you. Best Regards, Elia Fawzy.
$9,000 USD in 21 days
6.9
6.9

Hello, I can build a Bitrix24-connected VoIP call center for your 20 Sales and Support users with clean call flows, click-to-call, CRM logging, dashboards, recordings, transfers, and supervisor tools. I have hands-on experience with Bitrix24 integrations, SIP/Asterisk-style PBX setups, WebRTC/softphones, secure voice settings like TLS/SRTP, and practical AI features such as call summaries and quality checks pushed back into CRM records. I will keep the setup simple for agents, ready for English and Polish, and documented clearly so your team can manage it after handoff. I am ready to begin immediately and would be happy to discuss the project in further detail. Thanks, Teo
$10,000 USD in 50 days
6.5
6.5

Read your brief end to end. This sits right in my wheelhouse — I've been building Asterisk-based call centres for 15 years and most recently spent three years at Nautilus SIP (cloud telephony provider) doing exactly this kind of work: WebRTC phones, CRM voice integrations (Zendesk in that case, Bitrix24 here), and rearchitecting infra to cut complaints by 60%.
$7,500 USD in 25 days
6.8
6.8

As a seasoned IT professional with over 14 years of experience, I've dedicated myself to finding comprehensive and innovative solutions to complex projects just like yours. An expert in Asterisk PBX and VoIP, I possess the essential skills needed to build your Bitrix24 VoIP call center flawlessly. My proficiency in cloud computing, particularly AWS EC2, RDS, VPC, ECS, and Azure VM's, Vnet among others strengthens my ability to craft a cost-effective solution for you and give accurate cost projections once the system goes live. The multilingual handling aspect of this project stands out to me; it is both unique and exciting. With my extensive background in international projects, I understand the complexities that come with multiple language requirements. Having already worked with Elastix and Freepbx systems in past VOIP implementations, I can ensure seamless integration into Bitrix24 for your team. Going above-and-beyond the project requirements, I'll also provide documentation, admin training and necessary hand-off materials so that you won't encounter any difficulties while working on this system. Lastly, I understand budgets are crucial for your project success and promise to deliver a scalable and robust system that's not only easy on your budget but also on your team's learning curve. I will appreciate if you please leave me a message to discuss the details and any concern if having.
$7,500 USD in 30 days
5.8
5.8

With such a complex, wide-reaching project, your business needs someone like me - experienced, detail-oriented and knowledgeable about all the systems at play. From my vast expertise in server administration, networking, virtualization, and security to proficiently managing operations on Windows Server, Ubuntu, CentOs, and more - I've got it covered. My diverse skill set also includes implementing DNS/DHCP solutions for optimal network functioning - a key component in successfully integrating your VoIP call-center with Bitrix24. Additionally, my strong background in firewalls, scripting, containerization makes me well-suited to enhance the security of your system. Moreover, I have specialized proficiency in VoIP / IP telephony systems including 3CX systems and FreePBX which will certainly be beneficial for your project's success. Clear documentation and unwavering availability are further hallmarks of my commitment to delivering quality projects. With me on board, be assured of receiving undistracted 24/7 support as well as fast responses for critical issues. Listening keenly to your specific needs and requirements is an essential part of my approach as an IT professional. I look forward to offering targeted solutions that make your Bitrix24 VoIP Call Center seamless, easily-ignited and affordable for your team's daily operations. Let's connect now to discuss how our collaboration can turn this project into reality!
$5,000 USD in 10 days
5.9
5.9

Hello!, This is James from Hollywood. I’ve carefully read your project description regarding the Bitrix24 VoIP Call Center setup and I’m excited about the opportunity to assist you. With over 15 years of experience in software development, particularly in telecommunications and VoIP systems, I’m confident in delivering a seamless integration that meets your needs. To ensure I fully understand your requirements, could you please clarify the following questions? 1. Are there specific features or functionalities you envision for the call center? 2. What is your timeline for the project delivery? My approach will involve a structured phase plan, starting with a detailed requirement analysis, followed by the design and development of the VoIP solution tailored to your Bitrix24 account. I’ve successfully built similar systems, including a custom VoIP integration for a small e-commerce platform and a call center solution for a local business, which improved their operational efficiency. Having participated in the Shopify partners program since 2016, I bring a wealth of experience in building custom solutions. I’m committed to ensuring your project is not just technically robust but also practical and aligned with your business goals. Looking forward to discussing this further!
$7,500 USD in 26 days
5.2
5.2

Hello, I've reviewed your requirement for a complete VoIP call-center setup integrated with Bitrix24, supporting 20 simultaneous users with multilingual capabilities and AI assistance. This aligns well with my experience in building scalable and secure communication platforms. I’m Taiwo, a UK-based Senior Software Developer with 10 years of experience, holding a Master’s in Cyber Security and a Bachelor's degree in Applied Computer Science. My background includes working with IBM, UK Government, BMW and Sky, giving me a solid foundation in building robust and secure systems. For your project, I propose leveraging Bitrix24's PBX capabilities or integrating a third-party PBX via REST/webhooks to meet your specifications. The setup will include click-to-call, screen pops, automatic CRM logging, and live dashboards inside Bitrix24. I'll implement multilingual handling, AI-driven call summarization, quality control, and departmental routing profiles. I will also provide clear documentation and admin training. Relevant projects: ⏺ OneKey – Developed API for managing commercial unit properties which will allow seamless integration. ⏺ IBM - Managing projects and people across different time zones and writing their API documentation My approach involves architecture design, configuration, thorough testing of call flows and AI modules, and providing comprehensive training and documentation. If this approach aligns with your vision, I can start immediately.
$7,500 USD in 76 days
5.1
5.1

As a seasoned Software Engineer and VoIP specialist, I understand the intricacies of implementing and integrating communication systems. I have worked with numerous platforms, including Bitrix24, employing REST/web-hooks to establish flawless connections and improve efficiency. My extensive understanding of PHP and Software Architecture solidifies my ability to construct robust call flows, AI functionalities, and dashboards while ensuring stellar voice quality even during high loads by leveraging TLS/SRTP, jitter buffering, and reliable SIP trunking. In terms of multilingual handling, my fluency in English and Arabic, alongside experience in network configuration using Cisco technologies, reflects my capacity to structure your VoIP call-center for multiple language support without necessitating any significant rework. Moreover, my skillset in Technical Writing guarantees crystal clear documentation so administrators can effortlessly comprehend the system's functioning while keeping the costs predictable. With a reputation for delivering projects promptly without compromising quality, I am confident in meeting your needs within budget and schedule. Furthermore, I am well-equipped to impart comprehensive and proficient training on the implemented solution to you and your team. Choose me as your Bitrix24 VoIP Call Center expert, and together we will bring your vision to life!
$8,733.33 USD in 8 days
5.3
5.3

Hi there, this feels very aligned. I’d approach this as a practical Bitrix24-centered contact-center build, not an overengineered PBX project: either a Bitrix24-connected third-party PBX or a SIP PBX integrated through REST/webhooks, with routing and media handled on the PBX side and CRM events, screen-pops, call logging, and dashboards surfaced inside Bitrix24. Bitrix24 supports SIP PBX and telephony integrations for CRM-linked call processing, and its REST-based PBX path is often the better fit when you want stronger routing and quality control outside Bitrix24 itself. For voice quality and security, I’d make TLS/SRTP, monitored SIP trunks, jitter handling, and WebRTC/SIP observability part of the core design rather than a later add-on. Current guidance for SIP/WebRTC deployments is very clear that encrypted signaling/media, TURN where needed, and call-quality monitoring around jitter, packet loss, and RTT are the baseline for stable real-time voice.
$5,000 USD in 7 days
4.0
4.0

Hi, I can help you You want a call center inside your Bitrix24 that your team can use fast. It should let 20 people call at once, log everything to CRM, show live numbers, route calls to Sales or Support, record calls, and make warm transfers. It should work in English and Polish now, be ready for a third language, have clear sound, and auto-write call summaries to the CRM. Agents should learn it in minutes, and costs should be clear. This will take a few days, I've been doing this type of work for years. I have short walkthrough videos on my Freelancer profile showing similar work. 1) Do you already have any IVR menus, queues, and scripts set up, or are we starting fresh? 2) What should the final dashboards and AI summaries look like to you when it’s done? Ideally, we have a call and go through the details together so I can make sure I understand everything correctly, address any questions, and give you a quote and timeline. Would that work? Best, Nicolas
$7,500 USD in 7 days
3.4
3.4

Hi, This sounds like a serious Bitrix24 call-center implementation where voice quality, CRM automation, supervisor visibility, and AI support all need to work together from day one. I’d start by designing the architecture around either Bitrix24 telephony plus supported integrations or a dedicated PBX such as Asterisk/FreePBX connected to Bitrix24 through SIP, REST APIs, and webhooks. The goal would be to keep agent usage simple while giving supervisors reliable routing, recordings, dashboards, and call history inside Bitrix24. The important part is building clean call flows for Sales and Support with IVR, queues, skills, warm transfers, recording, whisper/barge-in, and automatic CRM logging. For AI, I’d add transcription/summarization after each call and push the summary, quality flags, and clarity score back to the CRM record. I’m comfortable working with VoIP systems, SIP routing, PBX architecture, Bitrix24-style CRM integrations, call-center workflows, AI-assisted summaries, and production support documentation.
$7,000 USD in 30 days
2.1
2.1

Lets chat, a free consultation and no obligation. I understand you need a clean, professional, and user-friendly solution for your "Bitrix24 VoIP Call Center Build" project. My skills in PHP, Java, JavaScript are a perfect fit for this project. While I am new to freelancer.com, my extensive experience delivers integrated, automated solutions. Regards, Jason McLachlan
$7,500 USD in 3 days
1.4
1.4

As an seasoned bootcamp trainer with a deep knowledge in software architecture and telecommunication engineering, I'm confident that I can design and construct a first-rate VoIP call-center integrated smoothly into your Bitrix24 account for your 20-user team. My proficiency in consistent handling of multiple languages will ensure that the system is adept at launch, and suturelessly adaptable to adding more languages. Moreover, my understanding of AI systems and reputation for crafting quality control measures is perfectly tailored to your need for automated call summarization and call clarity scoring to push vital information into your CRM. Equally important is the solid voice quality you require for your communications, which is something I've consistently upheld in all my projects using my knowledge on TLS/SRTP, jitter buffering and reliable SIP trunking. Importantly, I can incorporate two departmental routing profiles (Sales and Customer Support) with all the necessary features like IVR, skill-based distribution, call recording and warm transfers. Finally, fidelity to clarity extends even into my documentation skills shown clearly in my deliverables: Architecture Diagram & Stack Recommendation, Configured Bitrix24 PBX or third-party PBX connected via REST/web-hooks, Fully tested call flows with dashboards & AI modules accompanied by agent/supervisor training session.
$5,002 USD in 7 days
0.0
0.0

Hey, I can help set up the VoIP call-center system and connect it cleanly with Bitrix24. I’m comfortable working with CRM integrations, SIP trunking, call routing, dashboards, call logging, role-based users, and AI features like call summaries and quality checks. I’ve done similar VoIP and communication system setups for both a law firm and a medical facility, so I understand the importance of reliability, call quality, security, and keeping the workflow simple for staff. For this setup, I’d focus on making it easy for agents to use while still giving supervisors strong visibility with live dashboards, IVR, recordings, warm transfers, whisper/barge-in, and automatic CRM updates. I can also provide the architecture plan, recommended tech stack, testing, documentation, and training so everything is ready to run smoothly from day one.
$7,500 USD in 7 days
0.0
0.0

Ksawerów, Poland
Member since Apr 20, 2026
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