Hire the Best Nextiva Business VoIP Specialists

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Muhammad Owais A.

Lahore, Pakistan

$15/hr
5.0
7 jobs

Hello there, I am VICIDIAL Engineer working in this filed from last 3 years. I have managed more than 500+ servers and diallers. I can arrange a new server, can provide unlimited support to any type of vici dialller. I can assist in any feature you think about the dialler. If you are looking for a really experienced person, congratulations, you are on the right profile. Thanks!

  • Nextiva Business VoIP
  • VoIP Administration
  • VoIP
  • System Administration
  • Linux System Administration
  • Server
  • Twilio API
  • Call Center Management
  • Asterisk
  • BPO Call Center
  • VICIDIAL
  • FreePBX
  • Campaign Management
  • Evolve IP Call Center
  • Call Center Software
Jennylou D.

Gingoog City, Philippines

$10/hr
4.9
121 jobs

🙋‍♀️ 𝙃𝙄𝙍𝙀 𝙈𝙀! 💎 TOP RATED 💻 Tech Savvy 🛜 High Speed Internet With a decade of administrative expertise, I bring a meticulous and adaptable approach to every task. I thrive in diverse work environments and am committed to delivering exceptional service to my clients. 👩‍💻 VIRTUAL ASSISTANCE Expert in handling day-to-day administrative tasks such: ▪️Proficient in Data Entry (Offline/Online) ▪️Skilled in Web Research ▪️Experienced in E-commerce platforms (eBay, Amazon, Newegg, Shopify) ▪️Proficiency in Google Sheets/Google 💼 Services Offered: ▪️ Data Entry and Management ▪️Document Preparation and Formatting ▪️Research Assistance 🤷‍♀️Why Choose Me: ▪️Reliability: Committed to delivering high-quality work with attention to detail and accuracy. ▪️ Flexibility: Adaptable to changing priorities and requirements, with a proactive approach to support your evolving needs. ▪️ Confidentiality: Respectful of sensitive information and dedicated to maintaining client confidentiality and privacy. ▪️Client-Centric Approach: Focused on understanding and meeting the unique requirements of each client, ensuring exceptional service and satisfaction. Talk Soon! Jenny

  • Nextiva Business VoIP
  • Data Entry
  • Virtual Assistance
  • Administrative Support
  • Shopify
  • Amazon
  • eBay
  • WordPress
  • Canva
  • WordPress e-Commerce
  • Ecommerce
  • Ecommerce Website
  • NetSuite Administration
  • Mailchimp
  • Microsoft Teams
  • ChatGPT
  • HTML
  • Office Administration
  • Market Research
Noureldin E.

Alexandria, Egypt

$20/hr
5.0
21 jobs

🚀 Twilio & WhatsApp Automation Specialist — I help businesses design and build intelligent communication systems that engage customers, automate conversations, and drive revenue. With hands-on experience integrating Twilio APIs and WhatsApp Business Platform, I develop smart solutions for: 📲 WhatsApp & SMS Campaigns — Automate outbound campaigns, alerts, OTP flows & lead nurturing. 🧠 Chatbots & IVR Flows — Build intelligent, multilingual bots and voice flows that reduce support workload. 🔁 Custom Integrations — Connect Twilio with CRMs (HubSpot, Salesforce), Google Sheets, and other SaaS tools via Webhooks, APIs, or Make/Zapier. 🧩 Voice & Call Routing — Configure Twilio Studio, SIP Trunking, number provisioning, IVR menus, call forwarding, and voicemail flows. 💼 I’ve worked with international businesses to implement scalable communication solutions that: Reduce manual workload by 70%+ Boost engagement through personalized messaging Enable real-time data flow between communication and business systems 🧰 Tech Stack & Tools: Twilio Studio · Twilio Conversations · Twilio Messaging API · Twilio SIP/Voice · WhatsApp Business API · Python · Node.js · Webhooks · Make.com · Zapier · Google Sheets · CRM integrations 🔐 My focus is on building secure, reliable, and easy-to-scale systems. Whether you need a fully automated flow or a custom integration, I’ll deliver it fast and clean.

  • VoIP Software
  • VoIP
  • Twilio
  • WhatsApp
  • SMS
  • Twilio API
  • Telephone System
  • CRM Automation
  • AI Agent Development
  • AI Chatbot
  • API
  • CRM Software
  • FreePBX
  • Plivo
  • Outbound Call
  • Odoo
  • Odoo Development
Sony Y.

Thane, India

$20/hr
4.9
206 jobs

✅ Top Rated Plus AI Agent Development ✅ 100% Job Success Score ✅ Fluent English Verified AI Voice Agents | Twilio Expert | SMS, Calling & CRM Automation I help businesses automate customer communication using AI Voice Agents, SMS Automation, Calling Systems, CRM Integrations, and Communication Workflows. With 130+ completed projects, Top Rated Plus status, and a 100% Job Success Score, I specialize in building production-ready systems that answer calls, qualify leads, book appointments, automate follow-ups, improve customer response times, and reduce manual work. My expertise combines modern AI technologies with real-world communication infrastructure, helping businesses move from manual processes to scalable automation. 𝗖𝗼𝗿𝗲 𝗘𝘅𝗽𝗲𝗿𝘁𝗶𝘀𝗲 📞 Voice AI & Communication Automation AI Voice Agents, AI Receptionists, AI Calling Systems, Appointment Booking Agents, Lead Qualification Systems, Customer Support Automation, Contact Centers, IVR Systems, SIP, SMS Automation, Call Routing 🤖 AI Solutions & Conversational Systems OpenAI, Claude, Gemini, Vapi, Retell AI, Conversational AI, Knowledge Assistants, Internal AI Tools, Business Automation ⚙️ CRM & Workflow Automation Lead Management, Pipeline Automation, Customer Communication Workflows, CRM Integrations, Automated Follow-Up Systems 𝗦𝗲𝗿𝘃𝗶𝗰𝗲𝘀 📞 AI Voice Agents & Calling Systems • AI Receptionists • AI SDRs • Appointment Booking Agents • Customer Support Agents • Outbound Calling Systems • Inbound Voice Automation • Voice AI Integrations 📡 Twilio & Communication Solutions • Twilio Development • SMS Platforms • IVR Systems • Call Center Solutions • Twilio Flex • Voice & Messaging Automation • Toll-Free & A2P 10DLC Solutions ⚙️ CRM & Business Automation • HubSpot Integrations • GoHighLevel Automation • Salesforce Integrations • Custom CRM Development • Lead Qualification Workflows • Business Process Automation 🧠 OpenAI, Claude & AI Integrations • ChatGPT Solutions • Claude Integrations • AI Assistants • Knowledge Systems • Internal AI Tools • RAG Applications 📱 SaaS, Web & Mobile Applications • Customer Portals • Admin Dashboards • AI-Powered Platforms • Web Applications • Mobile Applications 🖥️ Backend Development Python, Node.js, FastAPI, Express.js, REST APIs, Webhooks, Microservices 💻 Frontend Development React, Next.js, Vue.js, Angular 📱 Mobile Development React Native, Flutter, Swift, Kotlin ☁️ Cloud & Infrastructure AWS, Azure, GCP, Docker, CI/CD, Serverless Architectures 📊 Databases & AI Infrastructure PostgreSQL, MongoDB, Firebase, Supabase, Vector Databases 𝗜𝗻𝗱𝘂𝘀𝘁𝗿𝗶𝗲𝘀 • Real Estate & Property Management • Healthcare & Wellness • LegalTech • Financial Services • Logistics & Transportation • Professional Services • Call Centers • Home Services • SaaS & Technology Companies If you're looking to automate calls, SMS, customer communication, lead qualification, appointment booking, or customer support using AI and Twilio-based communication systems, let's discuss your project. Keywords: AI Voice Agent, AI Receptionist, AI Calling Agent, Twilio Developer, SMS Automation, IVR Development, CRM Automation, Voice AI, OpenAI, Claude, Vapi, Retell AI, Contact Center Solutions, Call Center Automation, Lead Qualification, Appointment Booking, Customer Communication Automation, Workflow Automation, Conversational AI, SaaS Development, Python, Node.js, React

  • VoIP Software
  • VoIP
  • Twilio
  • Twilio API
  • SMS
  • SMS Gateway
  • WhatsApp
  • SMS Module Optimization
  • API Development
  • Telephone System
  • IVR Software
  • Call Center Software
  • Automated Call Distribution
  • Chat & Messaging Software
  • Chatbot Development
  • AI Chatbot
  • AI Bot
  • CRM Automation
  • Automation
  • Compliance
Soslan A.

Tbilisi, Georgia

$50/hr
4.8
30 jobs

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.

  • VoIP Administration
  • VoIP
  • OpenSIPS
  • Kamailio
  • FreeSWITCH
  • WebRTC
  • Asterisk
  • Twilio
  • Session Initiation Protocol
  • VoIP PBX
  • AI Speech-to-Text
  • AI Text-to-Speech
  • Automatic Speech Recognition
  • Artificial Intelligence
  • Kubernetes
  • Docker
  • Linux System Administration
  • Node.js
  • C
  • Python
Jon Paul D.

Mabalacat City, Philippines

$20/hr
5.0
13 jobs

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 ✔ Post-implementation support, maintenance, and system optimization 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 ✔ Ongoing support available after implementation 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.

  • VoIP Software
  • VoIP Administration
  • Business with 10-99 Employees
  • Business with 100-999 Employees
  • Desktop Support
  • NICE
  • inContact
  • Call Center Management
  • Avaya
  • Implementation
  • Implementation Plan
  • RingCentral Glip
  • Dialpad
  • Back-End Development
  • Front-End Development

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Don't just take our word for it

What does a Nextiva business VoIP specialist do?

A Nextiva business VoIP specialist configures and maintains the Nextiva cloud phone system to support specific company calling workflows. This role manages user accounts, provisions hardware devices, and sets up call-routing features within the NextOS administration portal. The specialist connects telephony functions with third-party business applications through standard integrations or custom API connections.

  • Provision and assign physical or virtual phone devices in NextOS by entering MAC addresses and linking them to specific user accounts. Configure individual voice settings such as voicemail greetings, PIN codes, and voicemail-to-email forwarding rules through the NextivaONE app or admin dashboard.
  • Build complex call handling structures including auto attendants and call queues that route incoming callers to the next available representative. Define ring behaviors for user extensions by setting sequential or simultaneous ring conditions based on specific schedules or availability status.
  • Integrate the Nextiva phone system with customer relationship management platforms like Salesforce or HubSpot to enable click-to-call functionality and data synchronization. Develop custom connections using Nextiva REST APIs and webhooks when standard integrations do not meet specific business logic requirements for helpdesk or productivity tools.

How to hire a Nextiva business VoIP specialist on Upwork

Step 1: Post a job

Define your telephony requirements clearly to attract qualified candidates who understand NextOS administration. Use the Job Post Generator powered by Uma™, Upwork's Mindful AI to draft a precise description in seconds. Describe your needs in a few sentences and Uma drafts a job post for the role. You can write a new post, update a saved draft, or reuse an existing post.

  • List specific Nextiva Voice features you need configured, such as auto attendant menus, call queues, or voicemail-to-email routing rules.
  • Specify whether the work involves provisioning physical devices by MAC address in NextOS or setting up softphones via the NextivaONE app.
  • Mention any required integrations with third-party tools like Salesforce, HubSpot, or Microsoft Teams to filter for candidates with API experience.

Step 2: Evaluate candidates

Look for proof of hands-on experience with Nextiva’s cloud phone system rather than general VoIP knowledge. Uma can run instant video interviews and build shortlists with side-by-side comparisons to help you assess technical fit quickly.

  • Check for portfolio examples showing configured call routing logic, such as sequential or simultaneous ring groups based on business hours.
  • Verify experience with device management tasks, including adding, editing, and assigning phones to users within the NextOS dashboard.
  • Seek evidence of custom integration work using Nextiva REST APIs or webhooks to connect voice data with CRM platforms.

Step 3: Interview your top choices

Discuss specific scenarios to test their problem-solving skills with Nextiva’s interface and logic. Interviews can be scheduled and conducted within Upwork Messages with an immediate transcript and summary after each one.

  • Ask how they troubleshoot failed call forwarding rules or issues with voicemail PIN resets in the NextivaONE app.
  • Request details on how they structure auto attendant menus to improve caller experience and reduce missed connections.
  • Discuss their approach to testing call queue performance during peak hours to ensure reliable routing to available agents.

Step 4: Agree on scope and begin work

Set clear milestones for system configuration and integration tasks before starting. Use Upwork Messages and the contract workroom for communication and project management, plus identity verification, payment protection, hourly tracking, and project funds for security.

  • Define deliverables such as fully provisioned devices, tested call flows, and documented voicemail greetings for each user extension.
  • Establish checkpoints for verifying integrations, ensuring click-to-call functions work correctly within your chosen business apps.
  • Agree on a timeline for final system audits to confirm all routing rules and ring behaviors match your operational requirements.

Upwork is not affiliated with and does not sponsor or endorse any of the tools or services discussed in this article. These tools and services are provided only as potential options, and each reader and company should take the time needed to adequately analyze and determine the tools or services that would best fit their specific needs and situation.

The rates and information provided in this article are based on current data and industry sources available at the time of publication. Freelance rates can vary depending on factors such as experience, location, project scope, and market conditions. Readers are encouraged to conduct their own research to confirm current rates and trends, as this information may change over time.

How much does hiring a Nextiva business VoIP specialist cost?

$500-$1,500 per project is a typical range for focused Nextiva business VoIP specialist work. Final pricing depends on scope, technical complexity, required integrations, source-material quality, revision needs, and the freelancer's experience level.

Device provisioning and user setup

$500-$1,200/project

Entry-level to mid-level
  • MAC address entry and assignment in NextOS
  • Voice settings and extension mapping for staff
  • Tested call connectivity for provisioned devices

Call routing and voicemail configuration

$1,200-$2,500/project

Mid-level
  • Menu trees and greeting recordings for inbound calls
  • Sequential or simultaneous ring rules for teams
  • PIN setup and email forwarding for missed calls

CRM and productivity app integration

$2,500-$4,500/project

Mid-level to senior-level
  • Sync setup for Salesforce, HubSpot, or Zendesk
  • Verified browser and desktop app functionality
  • Confirmed contact and log alignment between systems

Custom API and webhook development

$4,500-$7,500/project

Senior-level
  • Custom REST API calls for unique business logic
  • Real-time event triggers for external applications
  • Technical guide for maintaining custom connections

Enterprise UCaaS migration and optimization

$7,500-$12,000/project

Expert-level
  • Phased plan for moving legacy systems to Nextiva
  • Multi-site call flow and disaster recovery setup
  • Performance review and optimization recommendations

Frequently asked questions

Is hiring a Nextiva business VoIP specialist worth it?

For most businesses, yes: hiring a Nextiva business VoIP specialist is worthwhile. These experts configure complex call routing rules and auto attendants that general IT staff may not know how to set up in NextOS. They also handle device provisioning and CRM integrations, which keeps your team focused on core operations instead of phone system troubleshooting.

How do I evaluate Nextiva business VoIP specialist candidates?

Look for candidates who describe specific actions they took in the NextOS admin panel, such as assigning MAC addresses to users or configuring simultaneous ring schedules. Ask them to explain how they tested a call queue setup or verified a webhook connection to your CRM to confirm their hands-on experience.

What tasks does a Nextiva business VoIP specialist handle?

A Nextiva business VoIP specialist provisions phones in NextOS, configures voicemail-to-email settings, and sets up auto attendant menus. They also build integrations between Nextiva and tools like Salesforce or Microsoft Teams using APIs or standard connectors.

Can a Nextiva business VoIP specialist integrate my phone system with other apps?

Yes, these specialists connect Nextiva to CRMs and helpdesks using built-in integrations or custom REST API webhooks. This setup enables features like click-to-call and automatic call logging in your existing business software.