VoIP infrastructure for the agentic era with no vendor lock-in. Bring your own carriers, infrastructure and product, and adapt the platform wherever the project requires it.
Free while you test.
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MTN
Toyota ConnectedTrusted since 2015
Telecom operators, service providers, enterprise engineering teams, call centers and software companies.
Unified communications as a platform: voice, messaging, contact center and billing, under your control.
Create separate, segmented environments between your clients for full analysis and utilization. It simplifies management and billing, supports clear security boundaries, and provides white-label options with customer subdomains, storage and portals.
Select your own infrastructure resources for each client — SIP termination, SIP-compatible phones and recording storage — with no middleman. Buy termination, SMS and storage directly from the providers of your choice.
Built on a documented REST API for integration with your in-house systems. VoipAppz provides custom development, upgrades and new features for the requirements agreed in each project.
Operate customer accounts, numbers, routing, rate plans and billing from one system. Keep carrier relationships direct and give customers their own branded access.
Connect an AI agent, CRM, helpdesk or other application to phone numbers and carriers. Keep the product and its business logic.
Add browser calling, queues, campaigns and call records to the systems your team already uses.
Run voice at a customer site, in a private cloud or across multiple sites. Keep signaling, media, call records and recordings inside the required infrastructure boundary.
VoipAppz connects the application to phone numbers and SIP carriers and provides the routing, recordings, billing and operational tools around it.
Keep the AI agent, CRM, helpdesk, browser application or workflow your users already know.
Use the compatible SIP carriers, phone numbers and rate plans that fit your operation.
Choose the cloud account, servers, networks and storage used for calls, data and recordings.
Set access, retention, maintenance and support requirements for each deployment.
How it works
Comments from teams we have worked with on production communications projects.
We have been working with voipappz for over a year on the IOT Project for Toyota-Connected. We were interested in boosting flexibility, technical capabilities, joint operations with our overseas teams, and a personalized touch. Thanks to voipappz, we reached the POC quickly and received an immediate response to evolving issues. We are more than happy to recommend voipappz and continue collaborating with them in the future.
Gal Melamed
Director of Data Product Management and Business Innovation at Toyota Connected Europe
The delivery controls and operating features needed to run calls, customers, providers, data and integrations from one platform.
We run a Lite instance for you with every feature. Connect your product and carrier, test real calls, and choose PRO or Enterprise when you go live.
Keep call processing close to your carriers or customer network on servers you control, managed from our hosted control system. We install and verify each node; existing PBX systems can remain connected.
Run the control system in your own environment, with the full source code. Your team controls the domain, users, data, recordings, access rules and operating procedures while the same voice-node model serves each site.
The delivery loop builds and verifies each release. After deployment, the runtime layers route calls, process media and report health across the node fleet.
Keep your agent and product logic. Give users the portal, browser calling and customer views they need, with services, workflows, billing and reports in the same operating model.
Incoming calls reach a dedicated voice edge, which applies the route and selects a voice node.
Run media, recordings and PBX services near a carrier, customer network or local data boundary. Register another node for each new site.
Each node sends outbound traffic over the trunk selected by your routing and cost rules. Keep existing PBX systems connected as SIP peers.
Release the portal independently from the voice fleet. Pin node images and validate every node before it takes calls; to roll back, reinstall the previous image.
Build the node image and prove it with a real SIP call before release. Install and verify each node from the command line; health checks and monitoring continue after deployment.
The VoIP delivery loop
Run a softphone in the browser for assigned extensions, with calling, hold, transfer, mute and DTMF—without a separate desk-phone workflow.
Use the portal for call state and agent availability. Add the optional Chrome extension to pop the caller's record in a browser tab when a call rings.
Connect calls to CRM, webhooks, email, SMS and provisioning through the service and workflow definitions your business needs.
Apply tariffs and plans, run prepaid or postpaid accounts, meter call usage and enforce balance rules before a call costs you money.
Start, transfer and end calls from your application, then retrieve the resulting call records.
Connect your product through the API, tokens and event callbacks. Test locally, inspect call events and ship changes with confidence.
The same features everywhere. Test on a hosted Lite instance, then choose where the control system runs and whether you own the source code.
A simple Lite instance we host for you, with all the features, before you choose an edition.
Calls run on your premises; we host and operate the control system for you.
VOIPAPPZvoipappz installer runs the voice nodes on your serversThe control system and the voice nodes both run in your environment, and your team owns the code.
The same features in every option. Only where it runs and what you own change.
| Feature | Lite | PRO | Enterprise |
|---|---|---|---|
| Starting from | Free | $3,586/yr | Quote |
| The big things | |||
| Decentralized architectureSeparate environments per client, with their own subdomain, storage and portal | |||
| IndependenceYour own carriers, phones and storage, with no middleman | |||
| CustomizationDocumented REST API, plus custom development per project | |||
| Deployment | |||
| Use | Testing | Production | Production |
| Control system (mothership) | Our cloud | Our cloud | Your servers |
| Voice nodes | Our cloud | Your premises | Your premises |
voipappz installer and CLI | |||
| App template source code | |||
| Full platform source code | |||
| Build pipeline and tests in your own CI | |||
| Onboarding and code reviews | |||
| Support and SLA | |||
| User features | |||
| Unlimited extensions | |||
| Browser softphoneHold, transfer, mute, DTMF | |||
| WebRTC softphone in your own application | |||
| Agent status and live calls in the portal | |||
| Screen pop on incoming calls | |||
| Call handling | |||
| Bring your own SIP trunk and numbers | |||
| Multi-level IVR and announcements | |||
| Text-to-speechAzure, Google or OpenAI voices | |||
| Drag-and-drop call routing designer | |||
| Business-hours and timezone routing | |||
| Built-in SBC for phones and carriers | |||
| Click-to-call for websites | |||
| Audio conference rooms | |||
| Call center | |||
| Call queues, agents and skills-based routing | |||
| Supervisor listen, whisper and barge | |||
| Outbound campaigns and auto dialerRetries and blacklist | |||
| Call recordingYour storage, your retention | |||
| Call transcription | |||
| Live dashboard and queue SLA reports | |||
| Call reports and CSV export | |||
| Messaging | |||
| WhatsApp and SMS messaging | |||
| Message reports | |||
| Customers and billing | |||
| Multi-tenant customer environments | |||
| White-label portalsYour logo, colours and domain | |||
| Tariffs, prepaid and postpaid billing | |||
| Balance check before every call | |||
| Integration | |||
| REST API with tokens | |||
| WebhooksRinging, answer, hangup and more | |||
| CRM integrationsZendesk, Freshdesk, Fireberry, Scalla | |||
| Services and workflows | |||
| Bot conversation designer | |||
| MCP access for AI and developer tools | |||
| Phone auto-provisioningGrandstream | |||
| Operations | |||
| Live operations | |||
| Live node monitor with SIP capture | |||
| Health verdict after every install | |||
| Offline installer disc | |||
| Least-cost carrier routing | |||
| Support ticket | — | €75 | €75 |
Every VoipAppz project ships with a clear plan and security built in — and our engineering team is on hand for the work beyond the platform, from integration to high-availability design.
Need more than the platform? Our team is available by the hour, in prepaid blocks, for development, integration and consulting.
We know communication is business-critical — when the line is down, the business is down. For deployments that can’t go dark, we design beyond the standard SLA with extra uptime strategies.
Yes. Connect any compatible SIP trunk and load your own rates. The carrier relationship and its charges stay yours: you buy termination directly from the provider.
By capacity: concurrent calls and the maximum number of users or extensions. It is not a per-seat or per-minute price. A concurrent call is any active internal or external call.
Carrier calling and messaging charges, phone numbers, installation, migration, custom integration, on-site work and training. Every quote lists them in the written scope.
Where you choose. With Enterprise, the database and recordings run on your infrastructure; with PRO, call processing and recordings stay on the voice nodes at your site. Retention, backup and access are agreed in the deployment design.
Yes. CRM, helpdesk and business tools connect through the REST API and event callbacks. Deeper integration is scoped in the quote.
No. The architecture review decides what stays in your product and what connects to VoipAppz. Existing providers and PBX systems can stay connected as SIP peers.
With Enterprise, the central control system and the voice nodes run on your infrastructure, with the full source code. With PRO, the voice nodes run on your premises and we host the control system. The written scope defines capacity, sites, storage, updates and who operates each part.
Node and service health checks, alerts, incident handling, maintenance coordination and service reporting, with the response times in the support section below. Hours and escalation contacts are stated in the written SLA.
More questions? Read the help center or email us.
The same six phases for a new deployment or a migration from another data center, each closed with a sign-off.
We map your system, carriers and infrastructure, then prove a real call path on a hosted Lite instance or your own server, free.
You get: Working proof of concept and call-quality acceptance
A written scope and deployment plan: nodes, firewall ports, public IPs, TLS certificates and the security review.
You get: Signed SOW, deployment plan and risk register
The CLI installs and verifies each node on your servers, hardened and connected to your monitoring and SIEM.
You get: Verified nodes and support through your security scans
Data and recordings move over encrypted SSH only. Cutover in a maintenance window, with your current system kept live for instant rollback.
You get: End-to-end test calls and written go-live sign-off
Calls, records and recordings are monitored closely for the first days. Then the old environment is shut down and its data securely deleted.
You get: Stabilisation sign-off and data-deletion confirmation
Updates delivered as tested images, with monitoring and an SLA from the engineers who built the platform.
You get: SLA, updates and a named engineering contact
Monitoring, control and support from our engineering team. Business-hours coverage with on-call availability for critical incidents, remote or on-site.
Urgent
1 hour
An error that makes the platform inoperable.
High
3 hours
Material degradation affecting more than 5% of users with no workaround. Users can still place calls.
Standard
Next business day
Minor impact, fewer than 5% of users affected, or a workaround is available.
Enterprise plans include a dedicated SLA. A downtime incident is handled continuously from receipt to resolution.
The voipappz CLI installs the platform, connects your carriers, deploys your app and proves the call path.
On a clean Ubuntu 22.04 or 24.04 server, one command installs a voice node and registers it with the control system. A second puts the CLI on the host.
Allow your carrier to send calls in. Outbound trunks and routes are set in the portal; the node asks the control system for each route.
Scaffold your app from our template, add your own logic, and deploy it to the server named in config/deploy.production.yml.
Place a real SIP call against the node, then check every service.
# 1. install on your infrastructurecurl -fsSL https://raw.githubusercontent.com/voipappz/installer/main/install.sh | sh✓ va-voip is healthycurl -fsSL https://raw.githubusercontent.com/voipappz/installer/main/scripts/install-cli.sh \
| sh -s -- --release # 2. use your carriersvoipappz sbc egress address add --grp 2 --ip 198.51.100.0/24voipappz sbc egress status # 3. keep your productvoipappz app new my-voice-appvoipappz app deploy --path my-voice-app -d production # 4. ship voicevoipappz test scenario call --to 1001voipappz healthEnterprise: voipappz bootstrap first installs the control system on your own servers, and the nodes register with it. No internet on site? An offline installer disc carries everything.
VoipAppz Builder is a desktop app for shaping the platform by chatting — build your own screens and logic with a coding agent that edits a private copy of the app on your machine, with live Admin and User previews. VoipAppz runs on your own infrastructure, so what you build ships where your data already lives.
Describe the change in plain words; the agent reads the app source and edits it for you.
Admin and User previews reload on their own, so you see each change the moment it lands.
Edits stay in an isolated Git worktree on a dedicated branch — review, commit and merge like any branch.
Download the Builder
100% open source — read every line of the code before you run it. The Builder only ever edits an isolated copy on your own machine.
Tell us what you need and we'll get back to you. The button opens your email app with everything filled in.