Turn Inbound Phone Calls & WhatsApp Chats Into Autonomous Revenue

Autonomous Voice AI phone receptionists and WhatsApp conversational commerce. Answer calls on Ring 1 and close sales 24/7 with zero hardware.

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Sub-650ms LatencySIM Forwarding (*21*)Urdu, English & 25+ LanguagesDedicated Tenant Isolation
Z

Inbound Call: +92 300 1234567

LIVE • Ring 1

Carrier Forwarded (`*21*`) • Urdu / Roman Urdu / English

01:14FastAGI: 540ms
Live Neural Voice Stream (Cartesia / Deepgram Nova-2)Audio Codec: OPUS 24kHz
👤 Caller (Spoken Urdu):10:02 AM

“Assalam-o-Alaikum! Mujhe Dr. Sara se kal 3 baje dental consultation book karni hai.”

Zunbur AI Receptionist (Urdu Spoken Voice):Latency: 520ms

“Walaikum Assalam! Bilkul, Dr. Sara kal 3:00 PM per available hain. Maine aapki booking confirm kar di hai aur confirmation WhatsApp message aapke number par send kar diya hai!”

Automatic WhatsApp Summary Sent to CallerWarm Transfer Ready (Press 0)
Post-Call WhatsApp SyncDelivered

✅ Appointment Confirmed: #BKG-8492

• Specialist: Dr. Sara (Dental Clinic)

• Time: Tomorrow at 3:00 PM

• Google Calendar 2-Way Synced

Reply "RESCHEDULE" anytime10:02 AM
Real-Time Voice PipelineAsterisk 20 + FastAGI
ASR (Deepgram)180ms
LLM Reasoning220ms
TTS (Cartesia)140ms
⚡ Total End-to-End Latency:540ms (Sub-Second)

Forward Any Phone to AI in 10 Seconds

No PBX servers or engineer setup required. Use standard carrier forwarding on your mobile SIM or connect via SIP.

Carrier SIM • Instant

Mobile Carrier Forwarding

Dial the standard carrier code from your phone keypad to route calls to your AI receptionist:

*21*<Your-Zunbur-DID>#
Works on Jazz, Zong, T-Mobile, VodafoneCancel: ##21#
Enterprise PBX

Direct SIP Trunking

Connect Asterisk, FreePBX, Twilio, or Telnyx directly to our FastAGI audio pipeline:

context=zunbur-fastagi-inbound
Sub-650ms end-to-end voice latencyPJSIP Compatible

Four Engines. One Platform.

Autonomous voice, conversational commerce, predictive outbound calling, and supervisor copilots.

01<650ms Asterisk Voice

Voice AI Phone Receptionist

Answers inbound calls on Ring 1 with sub-650ms latency. Speaks fluent Urdu, English, and Roman Urdu, books appointments on Google Calendar, and warm-transfers to staff.

02Official Meta Cloud API

WhatsApp Conversational Commerce

Turn chats into automated storefronts. Browse visual product catalogs, manage in-chat carts, and confirm Cash on Delivery (COD) or instant payment links.

03Sub-350ms AMD

Predictive Outbound Dialer

Autonomous outbound calling with sub-second answering machine detection (AMD), local DID pool rotation, and automated BANT lead qualification.

04100% QA Scoring

Two-Way Human Studio & QA

Supervisory AI copilot for human support staff. Zero-drop live agent handoff, real-time sentiment telemetry, and 100% automated interaction QA scoring.

Anthropic MCP Tools

JSON Schema tool execution

Asterisk FastAGI

Real-time C-level telephony

Official Meta API

Direct WhatsApp Cloud pipeline

Private Tenant Isolation

Dedicated encrypted databases

Workflows by Industry

Tailored solutions for retail, healthcare, salons, real estate, and contact centers.

WhatsApp Conversational Storefront

Allow customers to discover products, choose sizes, add to cart, and confirm Cash on Delivery (COD) without leaving WhatsApp.

+34%

Cart Conversion

28%

Cart Recovery

4.8X

ROAS

PreviewWhatsApp Checkout

Do you have the Premium Leather Jacket in Large?

Zunbur AI

Yes! We have 4 units left in Large. Price is Rs. 4,999 with Free Express Delivery. Would you like me to book it Cash on Delivery?

Why Teams Choose Zunbur

Unified Voice AI, WhatsApp Commerce, and Human Studio in one platform without per-seat taxes.

CapabilityZunbur AgentOSLegacy WhatsAppVoice Only APIs
Inbound Phone Call AI (<650ms)
Asterisk FastAGI
Voice Only (No WhatsApp)
WhatsApp Commerce & In-Chat Cart
Native (Cart, COD, Tracking)
Basic Forms Only
SIM Call Forwarding (*21*)
Any Carrier SIM (10s)
Complex SIP Trunk Only
Dedicated Tenant Isolation
Private DB & Encryption
Shared Multi-TenantShared Multi-Tenant
Native Urdu & Roman Urdu
Nova-2 + Whisper
Generic TranslationLimited
Unlimited Team Seats
$0 (Unlimited)
$25–$99 / seat / moPer-Minute Surcharge

Developer APIs & Security

Isolated tenant databases, AES-256 encryption at rest, and programmatic REST endpoints.

cURL dispatch
curl -X POST https://api.zunbur.com/v1/conversations/dispatch \
  -H "Authorization: Bearer zb_live_token" \
  -H "Content-Type: application/json" \
  -d '{
    "channel": "voice",
    "recipient": "+923001234567",
    "agent_id": "agent_receptionist",
    "telephony": { "provider": "asterisk_pjsip" }
  }'
Status: 200 OKFastAGI Initialized

Dedicated Tenant Isolation

Zero data co-mingling

Customer conversations and voice recordings are isolated in private, encrypted PostgreSQL databases with AES-256.

99.99% Uptime SLA

Carrier-grade infrastructure

Multi-zone redundant Asterisk clusters and direct Meta Cloud API routing guarantee sub-650ms latency.

API Docs

Frequently Asked Questions

Common questions about phone setup, WhatsApp commerce, and data privacy.

Simply dial *21*<Zunbur-DID># from your existing phone SIM (Jazz, Zong, T-Mobile, Vodafone, etc.). Inbound calls automatically route to your AI receptionist on Ring 1 when you are busy or after-hours. Dial ##21# anytime to cancel.

Have a specific integration question?

Turn Inbound Calls & Chats Into Revenue

Deploy autonomous Voice AI receptionists and WhatsApp conversational commerce in minutes.

Start Free 1 Month Trial
No credit card required•Setup in 10 minutes•Dedicated Tenant Isolation