Hire the Best Nextiva Business VoIP Specialists

I build, scale and rescue production VoIP and Voice AI platforms. For over 15 years, I've been designing SIP, WebRTC and real-time communication systems built on FreeSWITCH, OpenSIPS, Asterisk and related technologies. My experience ranges from troubleshooting complex SIP and media issues to designing multi-tenant communication platforms, AI-powered voice systems and carrier-grade telephony infrastructure. I can help with: • AI Voice Agents and Voice AI Platforms • OpenAI Realtime, Gemini Live, Deepgram, ElevenLabs, RetellAI • FreeSWITCH and Asterisk development • OpenSIPS and Kamailio SIP routing • SIP trunking and carrier integrations • WebRTC platforms and browser telephony • RTP, NAT traversal and media troubleshooting • SBC design and deployment • Contact center and call center solutions • Twilio, Telnyx and CPaaS integrations • Production incident investigation and VoIP troubleshooting • Telephony migrations and system modernization My technical background includes: • VoIP: SIP, RTP, WebRTC, FreeSWITCH, OpenSIPS, Kamailio, Asterisk, Jambonz, Drachtio, Twilio, Telnyx • Backend Development: Node.js, TypeScript, Python, Go, C • Databases: PostgreSQL, MySQL, MongoDB, Redis • Messaging: RabbitMQ, AWS SQS • Cloud & Infrastructure: AWS, GCP, Docker, Kubernetes, Linux, CI/CD • Monitoring: Prometheus, Grafana, ELK Stack Recent projects include: • AI-powered voice agents integrated with telephony platforms • SIP and WebRTC infrastructures handling production traffic • Multi-tenant communication platforms for SaaS products • Carrier integrations and custom call routing solutions • Real-time communication systems built on FreeSWITCH, OpenSIPS and cloud-native infrastructure Whether you need to build a new platform, migrate an existing system, integrate Voice AI capabilities or resolve complex SIP/WebRTC issues, I can help deliver a reliable production-ready solution.

I am a VoIP and Telephony Engineer with extensive experience in 3CX, VICIdial, Asterisk, FreeSWITCH, Twilio, SIP Trunking, and DID number provisioning. I help businesses build, optimize, and maintain reliable communication systems for call centers, telemarketing operations, and enterprise telephony environments. My expertise includes PBX installation and configuration, SIP trunk integration, number porting, IVR design, call routing, predictive dialer setup, inbound and outbound call center solutions, and VoIP troubleshooting. I am also experienced with Linux server administration, cloud deployments, and API integrations for voice and SMS applications. Whether you need a complete call center deployment, 3CX configuration, VICIdial optimization, Twilio integration, SIP troubleshooting, or ongoing telephony support, I can deliver scalable and dependable solutions tailored to your business needs. Core Skills: • 3CX PBX Administration • VICIdial Installation & Management • Asterisk & FreeSWITCH Development • Twilio Voice & SMS Solutions • SIP Trunk Configuration • DID Number Provisioning & Porting • Predictive & Power Dialers • IVR & Call Flow Design • Linux Server Administration • VoIP Troubleshooting & Optimization • CRM & API Integrations • Call Center Infrastructure Setup I focus on delivering reliable communication systems that improve efficiency, call quality, and business performance. 3CX, VICIdial, Asterisk, FreeSWITCH, Twilio, VoIP, SIP, SIP Trunk, DID Numbers, PBX, IP PBX, Hosted PBX, Cloud PBX, Telephony, Telecom, Telecommunications, Call Center, Contact Center, Predictive Dialer, Power Dialer, Auto Dialer, Progressive Dialer, Call Routing, IVR, Interactive Voice Response, Call Queue, Ring Groups, Voicemail, Call Recording, Number Porting, SIP Carrier, Voice Gateway, Session Border Controller, SBC, WebRTC, SMS Gateway, Twilio Voice, Twilio SMS, Twilio API, Linux Administration, CentOS, Ubuntu, Debian, Rocky Linux, AlmaLinux, MySQL, MariaDB, PostgreSQL, Apache, Nginx, SSH, VPN, Firewall, Networking, TCP/IP, UDP, RTP, QoS, NAT Configuration, VoIP Troubleshooting, SIP Debugging, SIP Trace, Wireshark, CRM Integration, Salesforce Integration, HubSpot Integration, Zoho CRM, Pipedrive, API Integration, REST API, PHP, Python, Bash Scripting, AGI Scripts, Call Flow Design, Inbound Calling, Outbound Calling, Lead Management, Telemarketing, Cold Calling Systems, Voice Broadcasting, Bulk SMS, DID Provisioning, SIP Registration, Carrier Integration, Call Monitoring, Queue Management, Agent Management, Multi Tenant PBX, Failover Configuration, High Availability, Cloud Deployment, AWS, DigitalOcean, Vultr, Linode, Dedicated Servers, VPS Setup, Server Migration, System Optimization, VoIP Security, Fraud Prevention, FreePBX, Issabel PBX, FusionPBX, Elastix, Yeastar, Grandstream, Fanvil, Yealink, Polycom, Cisco VoIP, Sangoma, OpenSIPS, Kamailio, Voice API, Telecom Consulting, Call Center Setup, VoIP Engineer, Telephony Engineer, SIP Expert, 3CX Expert, VICIdial Expert, Twilio Expert, Asterisk Expert, FreeSWITCH Expert, Linux Server Administrator, Network Engineer, Technical Support, System Administration, Remote Support, Cloud Communications, Unified Communications, UCaaS, Business Phone System, Enterprise Telephony, Call Center Optimization, Dialer Configuration, Lead Campaign Management, Real Time Reporting, Call Analytics, Voice Solutions, Telecom Infrastructure, Contact Center Solutions, VoIP Deployment, PBX Installation, SIP Configuration, DID Management, Call Center Technology, Telecom Solutions

I help businesses build, optimize, and manage enterprise-grade contact center solutions using RingCentral and NICE CXone. With 8,000+ hours worked and $100K+ earned on Upwork, I specialize in designing reliable IVR systems, intelligent call flows, routing logic, and customer support automation for both small businesses and large enterprises. What I Can Help You With: ✔ RingCentral UCaaS & CCaaS setup and administration ✔ NICE CXone / InContact development and support ✔ IVR and call flow design ✔ Studio scripting and automation ✔ Omnichannel customer support solutions ✔ API integrations and workflow automation ✔ Technical troubleshooting and platform support ✔ Contact center optimization and reporting Why Clients Work With Me: ✔ Certified and experienced contact center engineer ✔ Strong communication and project ownership ✔ Fast problem-solving and reliable delivery ✔ Able to manage projects from planning to deployment I focus on building scalable, user-friendly customer experience solutions that improve efficiency and customer satisfaction. Let’s discuss how I can help your business.

I am a specialized Twilio and SMS compliance expert helping businesses, marketing agencies, SaaS companies, fintech startups, and e-commerce brands successfully set up, scale, and maintain high-volume, fully compliant Twilio SMS campaigns. With over 4 years of hands-on experience in the Twilio ecosystem, I focus on solving one of the biggest challenges businesses face today: getting SMS messages delivered reliably without carrier blocks, regulatory violations, or sudden shutdowns. Whether you’re struggling with A2P 10DLC registration, low delivery rates, complex automation needs, or integrating Twilio into your existing systems, I deliver clean, scalable, and compliant solutions that just work. My Core Expertise • A2P 10DLC Registration & Compliance I handle the complete end-to-end process—from Brand Registration, Campaign Registration (Standard, Low-Volume, and Sole Proprietor), to Trust Score optimization. I have successfully registered dozens of brands and campaigns with fast approval times, helping clients avoid the common 30-60 day delays many face. • Twilio API Integration & Development Expert-level integration of Twilio’s Messaging API, Voice, Verify (2FA), and Conversations. I connect Twilio seamlessly with CRMs (HubSpot, Salesforce, Zoho), websites (WordPress, Shopify, custom), and internal tools. • n8n Automation Specialist I build powerful, cost-effective automation workflows using n8n (self-hosted or cloud). From simple notification systems to complex multi-channel sequences (SMS + Email + WhatsApp), I create maintainable workflows that save clients hundreds of hours and reduce operational costs. • SMS Compliance & Carrier Best Practices Deep understanding of US carrier requirements (AT&T, T-Mobile, Verizon), TCPA, and international regulations. I perform compliance audits and implement fixes to recover blocked numbers and improve deliverability rates to 98%+. • High-Volume SMS Architecture Designing scalable systems capable of sending 50,000+ messages per day while maintaining compliance and high engagement rates. Services I Offer A2P 10DLC Full Registration Package Brand + Campaign registration Trust score improvement strategies Fast-track approval support Ongoing compliance monitoring Twilio SMS Automation with n8n Lead nurturing sequences Abandoned cart recovery Appointment reminders & confirmations Customer support automation Marketing drip campaigns Twilio API Development & Integration Custom dashboards Real-time messaging systems Two-factor authentication (2FA/OTP) Webhook setup and error handling SMS Deliverability Optimization Carrier lookup & number validation Blocked number recovery Message content optimization for better routing Analytics setup and performance tracking Consulting & Audits Full SMS infrastructure review Compliance gap analysis Cost optimization recommendations Why Clients Trust Me 100% Job Success Score on Upwork (Top Rated) Consistent on-time delivery with clear communication Clean, well-documented code and workflows Strong focus on long-term relationships rather than one-off projects Ability to explain complex technical concepts in simple business language Selected Client Results Helped a fintech startup complete A2P 10DLC registration in under 14 days and scale SMS volume 8x while maintaining 98.7% delivery rate. Built a complete n8n + Twilio automation system for a digital marketing agency that increased client engagement by 47% and reduced manual work by 30 hours per week. Recovered multiple blocked phone numbers for an e-commerce brand and improved overall SMS deliverability from 62% to 97% within 3 weeks. My Working Process Discovery Call – Understand your current setup, goals, and pain points Technical Audit – Review existing Twilio account, compliance status, and workflows Custom Proposal – Clear scope, timeline, and expected outcomes Implementation – Build, test, and document everything Training & Handover – Full knowledge transfer so you’re not dependent long-term Ongoing Support – Available for maintenance and optimization I work primarily with clients in the United States, Canada, UK, and Europe, but I’m flexible with time zones and always available for urgent requirements. Let’s Work Together If you're Tired of SMS messages getting blocked or filtered Spending too much time on manual processes Facing compliance headaches with A2P 10DLC Looking to automate customer communication at scale …then I’m the right expert for you. Send me a message with details about your current Twilio setup or specific challenge. I usually respond within a few hours and can provide an initial assessment at no cost. Let’s build a compliant, high-performing SMS system that drives real results for your business. Looking forward to partnering with you.

Helped businesses deploy Microsoft Teams Phone, Genesys Cloud CX, SIP Trunks, and AudioCodes SBC solutions, reducing telephony issues and improving call reliability for contact centers and enterprise environments. Specialized in Microsoft Teams Phone, Genesys Cloud CX, SIP Trunking, and AudioCodes SBC with experience delivering cloud voice and contact center solutions for SMB and enterprise customers. 🔹 Microsoft Teams & Voice Solutions ✔️ Microsoft Teams Direct Routing ✔️ Operator Connect & Calling Plans ✔️ Auto Attendants & Call Queues ✔️ PSTN Integration & SBC Configuration ✔️ Multi-provider SIP failover routing 🔹 VoIP & Contact Center Expertise ✔️ SIP, E1, PRI integrations ✔️ AudioCodes SBC configuration & troubleshooting ✔️ Genesys Cloud CX (BYOCC, SIP Trunks, Routing) ✔️ Call recording & voice security ✔️ VoIP troubleshooting (RTP, TLS, SRTP, QoS) 🔹 Cloud & Infrastructure ✔️ AWS & Azure deployments ✔️ Hybrid cloud architecture ✔️ VPNs, Firewalls, Load Balancers ✔️ DNS, SPF, DKIM, DMARC & Email deliverability ✔️ High-availability & secure network design

I help home service businesses, medical clinics, and agencies capture lost revenue by building 24/7 AI Voice Agents that answer calls, qualify leads, and book appointments directly into your calendar. Most businesses don’t have a lead problem, they have a response-time and follow-up problem. Every missed call after hours, slow callback, or manual scheduling back-and-forth reduces your conversion rate. I solve this by building human-sounding AI Receptionists that work inside your real business workflows, connecting cleanly to your CRM, forms, pipelines, and backend tools. I build systems designed for real business use, not fragile demo bots. What I Build & Automate 24/7 Inbound AI Receptionists: Natural-sounding agents that handle FAQs, route calls, and book appointments directly into GoHighLevel or Google Calendar. Outbound Speed-to-Lead Agents: Automated systems that call new web leads within 60 seconds to qualify them and secure the booking. Post-Call Automation: Automatic call logging, CRM tagging, call summaries, and triggered SMS follow-up sequences. Missed-Call Recovery: Instant text-back systems to capture leads when lines are busy. The Technical Stack I integrate specialized voice platforms with your existing infrastructure to ensure zero latency and flawless data syncing: Voice & AI Platforms: Vapi, Retell AI, Twilio, ElevenLabs, OpenAI/Claude API. CRM & Pipeline Management: GoHighLevel (GHL) Native Voice & API integrations, HubSpot. Workflow Automation: Make com, n8n, Zapier, Webhooks, custom API routing. The Process Scope: We map your specific call flow, objection handling, and business logic. Build: I engineer the conversational AI prompt to prevent hallucinations and keep the agent on script. Integrate: The agent is wired into your calendar and CRM to update live data in real-time. Refine: We test the workflow to ensure a natural, latency-free experience before launching. Let's Build Your System If you need a reliable, scalable Voice AI system that actually drives revenue, send me a message with: Your business type and target audience Your current CRM and booking software What you want automated (Inbound, Outbound, or both) I’ll review your setup and suggest the most practical, high-ROI approach for your business.