One platform for calls, WhatsApp, Telegram and AI agents.
VoiceStream is a complete business phone system and omnichannel contact center — built on Asterisk, driven by AI. Run it in the cloud or on your own hardware, and let AI answer calls, reply to chats, and take orders.
Replace your PBX vendor, WhatsApp BSP, chatbot and dialer with one tenant-isolated platform — no softphone install for agents.
Works with the tools you already use
Everything your contact center needs
Voice, messaging, AI and automation — grouped so your team is never overwhelmed.
Browser-based WebRTC dialer
Agents make and receive calls in Chrome, Edge or Safari — no softphone to install. Unlimited extensions over WSS, UDP, TCP and TLS; desk phones and SIP devices too.
Call queues & visual IVR
Ring strategies (ringall, round-robin, fewest-calls, least-recent), a drag-and-drop IVR builder, time-condition routing, music on hold and a sound-prompt manager.
Live monitoring & recording
Watch every active call in real time and hang up, listen, whisper or barge. Full call recording, CDR analytics and voicemail delivered to email.
SIP trunks & smart routing
Connect any VoIP carrier with ordered or random trunk failover. Outbound routes with dial patterns and PIN protection; inbound/DID routing to any destination.
WhatsApp Business Calling — your flagship channel
Customers tap Call inside WhatsApp and land in your IVR, queue, agent, or AI bot. Agents click to call back — their extension rings first, then the customer's WhatsApp.
Inbound and outbound WhatsApp calls follow the same dialplan as your voice lines — queues, IVRs, time conditions, AI bots and voicemail all work. The permission flow is handled automatically and respects Meta's 24-hour customer-service window, so in-window calls dial straight through.
Audio is HD Opus at 48kHz over WhatsApp data — no carrier minutes, and typically 60–80% cheaper than traditional voice. It runs on the official WhatsApp Cloud API with per-tenant credentials, not a grey-market gateway.
AI that works the phones and the chats
Two voice engines, instant chat auto-reply, and AI that can even take and submit orders.
Realtime voice bot
Natural, sub-second phone conversations that answer, qualify and route — and hand off to a human the moment it hits a limit.
Knowledge-grounded smart bot
A RAG bot answers from your uploaded PDFs and docs across voice and chat — transcribing incoming WhatsApp/Telegram voice notes and replying automatically.
AI that takes orders
Collect an order in conversation, build a structured JSON order and POST it to your POS, CRM or kitchen — every order logged, tracked and one-click resendable.
Bring your own keys — OpenAI, Deepgram, Google, Azure, ElevenLabs, Anthropic & Groq. Pick a model per bot or channel.
Why teams switch to VoiceStream
One platform instead of five separate vendors — and channels the others simply don’t have.
| Capability | Traditional PBX | WhatsApp BSP | VoiceStream |
|---|---|---|---|
| Cloud phone system (PBX) | Yes | No | Yes |
| Official WhatsApp Business API | No | Yes | Yes |
| WhatsApp Business Calling | No | No | Yes |
| Telegram inbox & calling | No | No | Yes |
| AI voice & chat agents | No | Chat only | Yes |
| AI order-taking → your POS/CRM | No | No | Yes |
| Browser dialer (no softphone) | Add-on | No | Yes |
| Cloud or on-premise | On-prem | Cloud only | Both |
| Multi-tenant white-label | No | Limited | Yes |
| One vendor, one bill | No | No | Yes |
Deploy your way
Fully managed in our cloud, or on your own hardware. Your numbers, your data, no lock-in.
| Capability | Cloud | On-Premise |
|---|---|---|
| Hosting | Fully managed by us | Your server or SIP appliance |
| Hardware | None needed | Standard server, Grandstream & SIP devices |
| Data residency | Our secure cloud | Stays on your premises |
| Maintenance | We handle updates & uptime | Your team, on your schedule |
| Best for | Fast start, zero ops | Full control & compliance |
PBX hardware & on-site installation
Grandstream IP-PBX appliances, IP phones, DECT and VoIP gateways — supplied, configured and installed to work with VoiceStream out of the box.
Grandstream UCM6304
On-premise IP-PBX appliance for growing contact centers — runs your extensions, queues and IVRs locally and bridges to VoiceStream.
- Up to 2,000 users / 300 concurrent calls
- 4 FXO + 4 FXS analog ports
- Dual Gigabit NIC, built-in recording
- Plug-and-play with VoiceStream
Grandstream UCM6302
Compact IP-PBX appliance for small and mid-size offices that want on-premise control with cloud reach.
- Up to 1,000 users / 150 concurrent calls
- 2 FXO + 2 FXS ports
- Gigabit, built-in IVR & queues
Professional installation & configuration
We supply the hardware, rack and provision it, connect your SIP trunks and extensions, and hand you a working system — on-site or remote. Your team gets a phone system that just works, with VoiceStream cloud or on-premise.
- On-site or remote installation & rack mounting
- Auto-provisioning of IP phones, gateways & DECT base stations
- SIP trunk, extension, IVR & call-queue configuration
- Firmware updates, security hardening & line testing
- Staff training & post-installation support
Built for teams that live on the phone
From e-commerce to fleet, healthcare to BPOs — wherever a call or a chat wins the deal.
E-commerce & D2C
COD-confirmation calls, abandoned-cart recovery and order updates over WhatsApp — industry data shows COD calls cut cancellations 40–60%.
GPS, fleet & vehicle tracking
Geo-fence and panic-button alerts auto-dial the driver, then the fleet manager, then security — until someone presses 1 to acknowledge.
Real estate
Instant lead callback and a click-to-call agent dialer so no enquiry ever goes cold.
Healthcare & clinics
Appointment reminders and confirmations by WhatsApp call, answered or placed by AI.
Financial services & collections
Cheap WhatsApp dunning, payment reminders and verification calls that actually get read.
Customer-service BPOs
A single multi-channel agent desktop for calls, WhatsApp and Telegram, with live monitoring and RBAC.
Logistics & last-mile
Delivery ETAs, failed-delivery callbacks and driver coordination — automated end to end.
Live in four steps
From numbers to AI agents without running a telecom project.
Connect your numbers & channels
Add SIP trunks or DIDs and link each tenant’s own WhatsApp Business Account and Telegram — all from the dashboard.
Build your call flows
Drag-and-drop IVRs, queues, time conditions and routing. Point any inbound number at an agent, a queue, or an AI bot.
Add AI & automation
Upload a knowledge base, switch on AI voice and chat agents and order-taking, and wire up Shopify or webhook triggers.
Go live
Agents work from the browser, customers reach you on voice, WhatsApp and Telegram, and you watch it all in live reports.
Simple, per-seat pricing
Start with a free trial, scale with usage, and white-label when you’re ready.
Starter
For small teams getting started
per seat / mo, billed yearly
- Managed Cloud PBX + WebRTC dialer
- 1 WhatsApp Business number
- Unified WhatsApp & Telegram inbox
- Call queues, IVR & voicemail
- Email support
- Not included: AI voice & chat agents
- Not included: White-label & reseller
Business
For growing support & sales teams
per seat / mo, billed yearly
- Everything in Starter
- WhatsApp Business Calling
- AI chat auto-reply + human takeover
- Shopify order automation
- Bulk campaigns & templates
- Live monitoring & reports
- Not included: White-label & reseller
Pro
For automation-heavy operations
per seat / mo, billed yearly
- Everything in Business
- AI voice agents (realtime + smart)
- AI order-taking → your POS/CRM
- Auto-calling webhooks & cascades
- Advanced analytics & audit log
- Priority support
Enterprise & White-label
For resellers & large deployments
or deploy on-premise on your own hardware
- Everything in Pro
- Multi-tenant isolation & white-label
- Reseller billing, coupons & proration
- On-premise / Grandstream deployment
- SSO, custom roles & RBAC
- Dedicated onboarding & support
Built on technology you can trust
VoiceStream runs on the official WhatsApp Cloud API and a carrier-grade open-source core — not a grey-market gateway.
Carrier-grade core
Built on Asterisk and WebRTC — proven, real-time telephony that powers over a million businesses.
Isolated & secure
Per-tenant database isolation, signature-verified webhooks, RBAC, firewall and fail2ban. GDPR-ready.
Official channels
Meta's official WhatsApp Cloud API and Telegram — each tenant connects their own accounts and keys.
Frequently asked questions
VoiceStream is an all-in-one communications cloud that combines a managed Cloud PBX, the official WhatsApp Business API and Calling, Telegram, AI voice and chat agents, and order automation in one tenant-isolated platform. It replaces a separate PBX vendor, WhatsApp BSP, chatbot and dialer with a single dashboard.
No. VoiceStream includes a browser-based WebRTC dialer, so agents make and receive calls directly in Chrome, Edge or Safari. Desk phones and standard SIP devices are also supported.
Yes. VoiceStream runs on Meta’s official WhatsApp Cloud API, and each tenant uses their own WhatsApp Business Account and Phone Number ID — not a grey-market gateway. Webhooks are verified with HMAC SHA-256.
It lets customers call your business from inside WhatsApp, and lets your agents call them back over WhatsApp. Calls follow the same dialplan as your phone lines — IVR, queues, agents or AI bots — in HD Opus 48kHz with no carrier minutes, typically 60–80% cheaper than traditional voice.
Yes. The same software runs fully managed in our cloud, or on-premise on your own server or SIP appliance (Grandstream and standard SIP devices are supported). Your numbers, your data, your choice.
You bring your own API keys and pick a model per bot or channel. Supported providers include OpenAI, Deepgram, Google, Azure, ElevenLabs, Anthropic and Groq for speech-to-text, language and text-to-speech.
Yes. The Enterprise & White-label plan gives you fully isolated tenants with separate WhatsApp accounts and billing, plan-based module gating, and per-tenant branding — logo, colour and domain.
Every tenant is isolated at the database row level with its own WhatsApp credentials. Webhooks are signature-verified, and you get role-based access control, firewall and fail2ban management, and scheduled backups. VoiceStream is GDPR-ready.
See VoiceStream in action
Book a live demo or start your free trial — set up in minutes, no credit card required.
14-day free trial · No credit card required · Cloud or on-premise