■ compatible with different phone systems voice AI / Product 03
Your phone system. One extension. Intelligent conversations.
VumaIVR adds conversational AI to a standards-based phone system without replacing the phone system. Give it one authenticated SIP extension and it can answer inbound calls, place scheduled outbound calls and transfer callers using standard telephony.
phone system agnostic by design
No proprietary phone system connector. No confusing platform-specific project.
For core calling, VumaIVR behaves like a normal SIP endpoint. It registers an extension, receives calls and uses standard SIP for call control and transfers. Your phone system remains in charge of numbers, queues and routing.
Create an extension
Add a normal authenticated SIP extension on the existing phone system.
Enter its credentials
Provide the extension or registration name, password and SIP server details.
Send calls to it
Use the phone system routing you already understand to deliver calls to the AI extension.
NO VENDOR API REQUIRED FOR CORE CALLING ■ NO phone system REPLACEMENT ■ NO TRUNK REDESIGN
01 / EXTENSION SETUP
From SIP credentials to a live AI extension.
Configure each extension with its own language, voice, system prompt, transfer policy and AI service profiles. Connect or reconnect it from the dashboard and see registration status immediately.
- General phone system setup with editable SIP fields
- Separate registration name when required
- Live registered, connecting and failed states
- Automatic registration refresh and recovery
- NAT keepalive support
- Per-extension voice, language and behaviour
- Multiple configured SIP extensions
02 / CONVERSATIONAL AI
Natural voice conversations shaped around your business.
Choose the AI services, voice and language for each extension, then combine global calling rules with a business-specific prompt. Callers can interrupt naturally while the conversation continues in real time.
- OpenAI Realtime
- Azure OpenAI Realtime
- Gemini Live
- Deepgram voice pipelines
- Provider-aware voice selection and preview
- Natural caller interruption
- Inbound and outbound prompt controls
- Encrypted, reusable AI profiles
03 / CALL HANDLING
Resolve, transfer or capture the next action.
The agent can search an extension-specific contact list, transfer a caller using standard SIP, create a confirmed callback request or send an email when configured.
- Blind and attended SIP transfers
- phone-system-specific transfer allow-lists
- Search by contact name, alias or number
- Caller hold and consultation for attended transfers
- Availability-aware handling when directory data is available
- Confirmed callback requests
- Optional email delivery and notifications
- Polite AI-controlled call ending
04 / HUMAN SUPERVISION
Keep people in control of live calls.
Authorised supervisors can follow caller and agent text as it happens, privately instruct the AI, transfer the call or ask the agent to end it with a configured announcement.
- Authenticated live transcripts
- Private supervisor instructions
- Reusable instruction presets
- Supervisor-initiated transfer
- Polite announced hangup
- Granular own-call and all-call permissions
- Live state recovery after reconnect
05 / OUTBOUND CALLING
Schedule individual calls or prepare a complete call list.
Create outbound calls with a dedicated purpose and prompt, or import a CSV batch. Track queued, active, completed and failed jobs with attempts and outcomes preserved.
- One-off scheduled calls
- CSV batch import
- Per-call prompt snapshot
- Status and attempt tracking
- Cancel and retry controls
- Inbound and outbound behaviour kept separate
06 / VISIBILITY
Understand every conversation and outcome.
Search call history, inspect outcomes and review the conversation alongside an operational event timeline. Authorised technical users can also examine AI response latency and RTP quality estimates.
- Searchable inbound and outbound call logs
- Live and persisted transcripts
- Outcome and duration summaries
- Transfer and callback events
- Diagnostic event timeline
- AI response-latency telemetry
- RTP packet-loss and jitter estimates
07 / COMPATIBILITY & CONTROL
Standards-based at the phone system. Flexible at the intelligence layer.
Core registration, calling and transfers do not require a manufacturer API. Optional Yeastar connectivity can add directory, presence and webhook information without becoming a dependency for normal operation.
STANDARD SIP REGISTRATION ■ INBOUND & OUTBOUND CALLING ■ G.711 / PCMU AUDIO ■ BLIND & ATTENDED TRANSFER ■ OPENAI ■ AZURE OPENAI ■ GEMINI ■ DEEPGRAM ■ OPTIONAL YEASTAR ENRICHMENT ■ ROLE-BASED ACCESS
Ready to add AI voice without replacing your phone system?
Bring one authenticated extension. Keep the phone system you already trust. Let VumaIVR handle the intelligent conversation.
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© 2026 VumaOne Software Systems, VumaIVR is actively developed and supported in Scotland.