NexaVoxa: AI Voice Agents for Calls, Booking & Support — 2026 Guide

Agent Builder: One Prompt or Guided Flow

Name the agent, write what it should do, and choose how it runs — either a single prompt or a guided flow you design and branch step by step. Each agent carries its own voice, language, tools, and knowledge base.

Ship a voice agent configured to your exact call flow without writing code.

Knowledge Bases and Mid-Call Tools

Attach the pages, documents, and recordings your agent answers from, then set the tools it can use mid call and the data it captures from every caller. The workspace shows knowledge bases with their attached sources.

Agents answer from your own material and act on the call, not just talk.

Browser Testing Before the Phone Line

Talk to your agent from the browser before it touches a phone line. Hear the voice and read the transcript as the call happens, so nothing reaches a customer you have not heard yourself first.

Catch problems in the transcript before a real caller ever hears them.

Twilio, Telnyx, or Any SIP Trunk

Connect your Twilio, Telnyx, or SIP trunk and route each number to an agent with dispatch rules. Embed the same agent on your website, or dial out from a list. The workspace manages inbound and outbound trunks side by side.

Every inbound and outbound number lands on the right agent.

Outbound Campaigns With Validation and Retries

Place thousands of outbound calls from a contact list, with every number validated by Twilio Lookup before dialing and retries that survive a restart. Campaigns resume automatically after a restart.

High-volume outreach that keeps running without manual babysitting.

Transcript, Sentiment, and Cost on Every Call

Every call is recorded, transcribed by speaker, scored for sentiment, and filed with its duration, outcome, and cost. Volume, latency, success rate, sentiment, and spend are visible across every agent and number in one workspace view.

Prove what each agent does and what each call costs before publishing the next version.

• Transparent per-minute pricing with no seat feesNexaVoxa states there are no seat minimums and no hidden platform fees, and that you are billed by the minute with visibility into the cost of every call. The pricing page shows a worked example: GPT-4o Mini (OpenAI) at $0.0053, Deepgram Nova-3 at $0.0200, and Deepgram Aura-2 at $0.0540, totaling $0.0793/min, plus a flat $0.004 platform fee per call charged once regardless of call length.
• Pay-as-you-go entry with free credit and no card requiredThe Pay As You Go plan is listed at $0/mo with per-minute billing by model plus $0.004 per call. It includes a $2.00 free credit, no credit card required, and no contract with cancel-any-time terms.
• Full call observability built into the workflowEvery call returns a transcript, a summary, sentiment, and its cost. Call Logs record every call, transcribe by speaker, score sentiment, and file duration, outcome, and cost. Analytics covers volume, latency, success rate, sentiment, and spend across every agent and number in one workspace view.
• Provider flexibility across models, telephony, and voiceAgents can run across OpenAI, Gemini, and Azure, each with its own voice, language, tools, and knowledge base. Phone numbers connect via Twilio, Telnyx, or any SIP trunk, with dispatch rules routing inbound and outbound numbers to the right agent. The pricing page lets you swap any provider to see the price change.

• Enterprise tier is custom-quoted, not publishedThe Enterprise plan lists Custom Annual Commitment, Dedicated Architect, Private Node Deployment, 99.95% SLA Guarantee, SSO/SAML Integration, and 24/7 Priority Support, but no price is shown. You must Consult Specialist to get terms.
• Cost depends on the provider mix you chooseThe $0.0793/min example is explicitly a swap-any-provider illustration using GPT-4o Mini, Deepgram Nova-3, and Deepgram Aura-2. Your actual per-minute cost will differ based on the language model, speech-to-text, and voice providers you select. The $0.004 platform fee is charged once per call however long the call runs.
• Outbound campaigns depend on external validation and retry behaviorCampaigns place thousands of outbound calls from a contact list, with every number validated by Twilio Lookup before dialing, and campaigns resume automatically after a restart. The sample dashboard shows 8,685 contacts queued, 5,580 calls placed, and a 64% connect rate, which illustrates that not every dialed number connects.
• Deployment requires you to bring your own telephonyTo deploy, you connect your Twilio, Telnyx, or SIP trunk and route each number to an agent. You can also embed the same agent on your website or dial out from a list. Telephony connectivity is therefore a prerequisite you supply, not something included by default.

Healthcare Patient Intake & Clinical Follow-ups

NexaVoxa is built for PHI-aware intake, orchestrating secure patient intake and clinical follow-ups. Healthcare teams can deploy voice agents that answer the phone, qualify the caller, and know when to hand the call to a person — with every call returning a transcript, summary, sentiment, and its cost so nothing reaches a patient that hasn't been heard first.

Outbound Follow-up Campaigns at Scale

Run outbound calls from a contact list with validation and retries. Every number is validated by Twilio Lookup before dialing, and campaigns resume automatically after a restart. The workspace shows contacts queued, calls placed, and connect rate — built for teams running thousands of calls a week, not one demo bot.

Multi-Agent Phone Line Management

Connect Twilio, Telnyx, or any SIP trunk and route each inbound and outbound number to the right agent using dispatch rules. Run a fleet of agents across OpenAI, Gemini, and Azure, each with its own voice, language, tools, and knowledge base — all managed from one workspace with agents, numbers, campaigns, and call logs.

Call QA, Analytics & Cost Visibility

Every call is recorded, transcribed by speaker, scored for sentiment, and filed with its duration, outcome, and cost. Analytics surface volume, latency, success rate, sentiment, and spend across every agent and number in one workspace view — so you can take what the calls tell you back into the agent and publish the next version.

Start building via the dashboard by selecting Start Building.

Build an agent by naming it, writing what it should do, and choosing how it runs.

Test the agent from the browser before it touches a phone line.

Connect your Twilio, Telnyx, or SIP trunk and route each number to an agent.