Hire the Best Kannel Specialists

👋 Hi, I’m Oleksii - a Twilio expert with over 7 years of hands-on experience building scalable, real-time communication systems using the full Twilio stack: 📞 Programmable Voice / SMS, 🧠 TaskRouter & Flex, 🎛️ Studio, Functions, Conversations, Sync, Webhooks and more. I’ve successfully completed 120+ Twilio projects on Upwork, including: • Eliminating latency issues in phone calls 🔧 • Creating SMS marketing automation pipelines 📲 • Developing full-scale Flex dashboards with custom workflows 🧩 Clients describe me as: “Very skilled, excellent communicator, smart guy and a pleasure to deal with.” “Oleksii was very helpful and available :) We no longer have problems with latency during our phone calls.” 🛠 Whether you need help with: • Twilio Studio call flows • Complex webhook-based automation • TwiML, IVR, call forwarding setups • Integrating Twilio with CRMs or internal systems • Building voice/SMS logic in Node.js, Laravel, or Firebase environments …I’ve got you covered. Let’s bring your Twilio-powered solution to life 🚀 Feel free to invite me to your job or message me with questions.

I am a Network Engineer with experience of more than 8 years. I have good skills in both system administration/integration and software engineering. I have had a good experience with Linux system administration, VoIP and SS7/SIGTRAN solutions and some cloud computing using docker. I have a very good experience with C/C++, JAVA, C#, node.js, socket.io, php programming languages.

I help U.S. businesses navigate SMS approval, deliverability, and compliance requirements - reducing the risk of carrier rejections, blocked traffic, and regulatory issues. I specialize in A2P SMS compliance and deliverability, including 10DLC registration, Toll-Free Verification (TFN), and TCPA/CTIA consent audits, as well as diagnosing carrier-level delivery problems. My work focuses on aligning SMS programs with current carrier and regulatory expectations so they can operate and scale responsibly in the U.S. market. If your messages are being rejected, filtered, or delayed - or you’re unsure whether your consent flow and use case will withstand carrier or legal review—I can help assess and correct the underlying issues. What I Do • 10DLC brand & campaign registration (new submissions, rejections, reclassifications) • Toll-Free Verification (TFN) setup and resubmissions • TCPA / CTIA compliance audits (opt-in flows, disclosures, opt-out handling) • SMS deliverability diagnostics (carrier filtering, content flags, throughput limits) • Platform-specific guidance (Infobip, Twilio, GoHighLevel, ClickSend, SimpleTexting) • Compliance-aware SMS automation (webhooks, triggers, rate-limiting, quiet hours)

Specialties: SMS,SMS Gateways,Kannel,Jasmin,Bulk SMS Software,SMS Lead Generation Software, Fortumo, Twilio, Plivo,Clickatell, SMPP 3.4 , HTTP REST API,AT Commands, GSM Modules,telecommunication,VOIP,SIP,IVR. Languages: English(Fluent), French(Fluent), Arabic (Fluent) Programming Skills: PHP 5&7, PL/SQL, shell Scripting, Perl Scripting, Java, Oracle/Mysql,Oracle Forms, Oracle Reports, Solaris/Linux Unix, Application Servers, Web services, advanced XML technologies, SOA patterns.

Hi, I’m Igi ! I have a passion for helping small business owners gain clarity, confidence, and control over their Operations. I offer professional, remote Operations Management / Sales / Support services tailored to your company’s unique needs. By partnering with me, you’ll have the assurance that your Operations are accurate and organized. I’m committed to provide peace of mind to Operations so you can focus on what you enjoy most in your business. Let’s work together to save you time, simplify your operations, and help your business be successful! Ready to lighten your workload and skyrocket your company’s growth? 🚀 Let me fuel your mission with out of this world Service and Management! 😊💫 🏆 Top Rated Plus freelancer with 100% Job Success! 🗣️ Fluent English-speaker with Near-Native Accent 🌟 Over 17 Years in Customer Support and Call Center Management ⏰ Available in All Time Zones 🔍Outstanding Attention to Detail While Managing Multiple Tasks 🤝On Time and Consistently Reliable 🧐Proficient in a Wide Range of Tools, and Quick to Master New Ones 🚀Able to Learn Product Knowledge and Processes Quickly 😊High Emotional Intelligence Interacting with Customers and Teammates PHONE SUPPORT • SALES • PROJECT MANAGEMENT • MANAGING LARGE TEAMS CRMs Odoo • Xero • Salesforce • Zoho • Highrise • Hubspot • Shopify & Others Help Desk Ticketing Systems Zoho, Live Agent, Odoo, Missive, Front & Others Call Center / VOIP (Internet-based Phone) RingCentral • Avaya • Dialpad • 8x8 • Zoom Phone • Sangoma & Others Live Chat Support LiveChat & Others I’ve spent my career leading large teams of BPO professionals, steering them towards excellence in client deliverables. I foster continuous improvement by personally coaching my team and nurturing a culture of innovation. My dedication has led me to discover countless operational efficiencies, and I take pride in supporting the career growth of each team member. With a proactive approach to problem-solving, I’m constantly looking ahead, identifying future potentials and embracing automation. I see myself as a leader, dedicated to guiding my team through transformative challenges and opportunities.

I specialize in VoIP solutions with a focus on RingCentral (EX & CX) and Zoom (Phone & CC) project implementation and ongoing support. As a subject matter expert in the field, I work with businesses of all sizes to streamline communication systems, resolve complex technical challenges, and deliver seamless transitions to cloud-based telephony. Here's what you can expect when working with me: Deep Roots in VoIP: I'm not just certified; I'm passionate about what I do. With experience in RingCentral, Avaya, Zoom and Vonage, I'm well-versed in the intricacies of these platforms both in its UCaaS and CCaaS versions. Your Time Matters: I understand that every second counts in your business. That's why you can rely on me for prompt responses and effective solutions. Who I Serve: From small startups to large enterprises, I've had the privilege of assisting businesses of all sizes. My expertise spans various industries, including law firms, universities, fitness, and finance, to name a few. Here is a list of the most common tasks I perform within a VoIP platform: Call queues / Auto Attendant - IVR Call Forwarding / Call Routing Voicemail Setup / Custom Answering Rules Porting / User setup / Limited extensions SMS Automation** (10DLC) Multi Site Call logging expert / Audit trail Announcement / Audio greetings - Voice over Desk Phone Provisioning I'm here, ready to be your partner in enhancing your communication systems. Reach out to me here on Upwork and let's start a conversation, looking forward to understanding your unique needs and finding the perfect solution for you!