Live voice agents for managed service providers
Add intelligent voice to your managed services.
Deliver live voice agents to your customers with central management, separate customer environments and the freedom to bring your own PBX and OpenAI API key.
Bring your own PBX
Bring your own OpenAI key
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ListenSpeakTransfer
One platform, your infrastructure
Keep control of the systems you already trust.
SIP2AI adds an intelligent voice layer without locking you into a phone provider or a shared AI account.
Bring your own PBX
Connect your current phone system through SIP. Cloud, on-premise, hosted or hybrid: your routing and numbers stay yours.
Bring your own OpenAI key
Use your own OpenAI API key per customer. Credentials are encrypted and remain under your operational control.
Operate from one place
Configure agents, destinations, tools, knowledge, live calls and post-call workflows from a single dashboard.
Beyond office hours
Your team clocks off. Your AI can stay available.
Answer incoming calls in the evening, at weekends and during holidays, without scheduling an extra staffed shift.
In this comparison: 21 working days per month. Round-the-clock human cover requires additional shifts.
24 hours a day, 7 days a week for inbound calls, within your concurrent-call capacity.
24/7 is availability, not free usage or an uptime guarantee. Extra calls add usage costs. PBX and AI services must be operational. Outbound follows the configured calling windows.
Built for the complete call lifecycle
Everything needed to design, run and improve AI conversations.
From the first SIP packet to the final evaluation, every part of the operation remains visible and configurable.
Live voice agents
Natural, low-latency conversations with configurable voices, opening messages and live context.
- Multilingual conversations and automatic language handling
- Configurable transcription and timezone-aware variables
- Concurrent-call licences and agent lifecycle controls
Outbound calls and campaigns
Let your agent make planned calls, not just answer the phone.
- Single API requests and multi-contact campaigns
- Personalised conversations, CSV leads and scheduling
- Controlled retries and traceable call results
PBX and SIP freedom
Register agents to the phone system you choose without replacing your PBX, trunks or numbering plan.
- All SIP-capable phone systems and providers
- Codec priorities, datacenter placement and fallback routing
- Inbound and outbound call workflows
Live call control
Follow active conversations and step in when human judgement is needed.
- Listen, whisper and speak in multiple languages
- Live final transcripts with clear speaker bubbles
- Transfer to any number or end the call
Knowledge and memory
Give every agent grounded information without manually managing vector store IDs.
- Automatic OpenAI vector store creation
- Multi-file knowledge uploads and lifecycle management
- Caller memory with configurable retention
Tools and integrations
Connect business systems before and during calls with structured, testable HTTP tools.
- Multiple pre-call and in-call tools per agent
- Dynamic JSON templates, caller input and output variables
- Response testing, callbacks, email and signed webhooks
Flexible routing and transfers
Model-visible aliases keep technical numbers private while each destination controls its own transfer policy.
- Direct and attended transfer per destination
- Permission, live or static announcements and keypress confirmation
- Call summaries, fallback and call-limit destinations
After every call
Turn completed conversations into searchable records and structured operational insight.
- Call history, final transcripts and stereo recordings
- Per-call evaluation snapshots with intent, outcome and summary
- Transcript delivery through email or webhook
Secure multi-tenant operations
Give administrators, resellers and customers the access and visibility appropriate to their role.
- Role-based customers, users, licences and agents
- Encrypted credentials, 2FA, audit trail and status monitoring
- Context revisions with one-click restore
Proactive conversations
The right call. At the right moment.
Offer proactive voice services to your customers: appointment reminders, requested callbacks and service follow-ups, with separate customer environments, agent-level controls and a customer-scoped integration API.
One call or a full campaign
- Queue a single call through the customer API, or create and update a campaign and its leads in one request.
- Enable outbound per agent, choose a caller ID and use draft, running, paused or completed campaign states.
- Stable request and campaign references prevent accidental duplicates. Queued calls wait for the agent to be available and SIP-registered.
Bring your contacts
- Add and manage leads in the portal or via API. Import comma- or semicolon-separated CSV using the downloadable template.
- Pass contact names, external IDs and conversation variables through CSV columns or JSON, including nested data.
- Imports update matching contacts without silently requeueing completed or active leads. Invalid imports roll back instead of partially applying.
Control when and how much
- Set campaign calling windows by weekday and timezone, with daylight-saving handling and excluded dates or periods.
- Limit simultaneous calls per campaign. Inbound and outbound share the agent’s concurrent-call licences.
- Campaigns follow their schedule. Individual API calls run as soon as capacity is available, so your integration must apply its own timing policy.
Make every call personal
- Use contact variables in the start message and context, such as a first name, appointment date or customer reference.
- Set campaign or individual-call messages, context and caller ID, with agent defaults when omitted.
- Keep pre-call and in-call tools, CRM and calendar connections. Campaigns can restrict available tools, but cannot enable a tool disabled on the agent.
Retry with care
- Configure attempt limits and retry delays for known unanswered campaign failures. Answered calls are not automatically redialled.
- Single API requests are not automatically retried. Uncertain call states are marked for review, not blindly dialled again.
- One-time start permits protect against duplicate dialling. Reset leads, delete contacts or archive campaigns while retaining attempt history and resolving active calls first.
See the result, keep control
- Track queue status, attempts, results, call IDs, timestamps and duration through the portal or request-status API.
- Link outbound calls to call history, transcripts, recordings, memory and evaluations when those features are enabled.
- Customer-scoped, replaceable and revocable API keys keep integrations separated. API limits, encrypted queue data and protected variables help control access.
Add outbound to your managed voice offering.
Bring your own PBX and OpenAI key. Apply to discuss customer rollout, integration and operations.
Outbound is off until enabled for an agent. Availability depends on your package and setup. Use permitted contacts and appropriate calling windows; 24/7 availability does not mean unrestricted outbound dialling.
Connected to your business
Turn a conversation into the next action.
Connect your CRM and calendars through configured API tools. Let your voice agent retrieve customer information and arrange appointments during a call.
CRM integration
Recognise customers, look up records, create tickets and send call notes to your CRM through its API.
Customer context, ready before the conversationGoogle Calendar
Check availability and schedule appointments in Google Calendar while the caller stays on the line.
Appointment scheduling during the callMicrosoft Outlook Calendar
Connect Microsoft Outlook Calendar to check open slots and create calendar appointments directly from the conversation.
Appointment scheduling during the callFrom PBX to production
A clear path from connection to continuous improvement.
Keep the telephony foundation you know. Add AI capability one controlled step at a time.
- 01
Connect
Register a SIP account, choose the datacenter and add your own OpenAI key.
- 02
Design
Shape the voice, behavior, context, knowledge and business tools of your agent.
- 03
Route
Define transfer destinations, callbacks, fallback behavior and call limits.
- 04
Improve
Review recordings, transcripts and evaluations, then restore or refine context revisions.
For managed service providers
One platform for your customers. Room to grow your service.
Add live voice agents to your portfolio with central customer management and the freedom to work with the PBX and OpenAI setup you choose.
Manage every customer
Keep customer environments separate, assign access, allocate concurrent calls and oversee agent status from a single dashboard.
Keep your connections
Bring your own PBX and OpenAI API key. Add knowledge, CRM and calendar integrations through configurable tools.
Support the full operation
Use live call control, recordings, transcripts and evaluations to support the voice services you deliver to customers.
Let’s build your MSP offering.
Tell us about your customers and use case. We will contact you to discuss the right setup.
Product changelog
The latest capabilities, built around real conversations.
Explore the functionality added to the SIP2AI platform.
Live operations and destination-level control
- New GPT Live operations portal with agent status, datacenter control and role-based administration.
- Persistent Call Control with listening, multilingual speech, live transcripts, manual transfers and call termination.
- Per-destination direct or attended transfer policies, announcements, consent, keypress and summary handoff.
- Per-call evaluation snapshots, call recordings, final transcripts and structured call history.
- Visual agent configuration, context revisions and reusable callback destinations.
Knowledge, tools and advanced routing
- Automatic OpenAI vector stores with multi-file knowledge management.
- Multiple pre-call and in-call API tools with testing, templates and mapped response variables.
- Destination aliases, fallback routing, call-limit handling and callback request workflows.
- Caller memory, multilingual transcription and transcript delivery by email or webhook.
- Reseller, customer, user and concurrent-call licence management.
Core realtime voice platform
- SIP registration and live AI voice agents for existing phone systems.
- Configurable agent voice, instructions, opening message and conversation context.
- Inbound call handling, transfers and basic post-call records.
- Secure portal foundation for managing agents and customer environments.
Good to know
Questions about SIP2AI
What is SIP2AI?
SIP2AI is a platform for live AI phone assistants. A voice agent answers calls, uses your business knowledge and carries out configured actions, such as transferring a caller, taking a callback request or scheduling an appointment.
Can I keep my existing phone system?
Yes. SIP2AI connects through SIP to SIP-capable phone systems, whether cloud, hosted or on-premise. You keep your PBX, provider and phone numbers. Your setup needs a SIP account or a compatible SIP connection.
Can the assistant use my CRM and calendar?
CRM systems, Google Calendar and Microsoft Outlook Calendar can be connected through configured API tools. The actions available depend on the integration and permissions you configure.
Can callers still speak to a person?
Yes. Configure direct or attended transfers for each destination. An attended transfer can introduce the caller, pass a summary and ask the recipient to confirm before connecting. Fallback destinations and callback requests are also available.
Does SIP2AI support multilingual calls?
Live voice agents support multilingual conversations and automatic language handling. Configure the agent's instructions, voice and transcription settings for your use case.
How do I offer SIP2AI as an MSP?
Apply for MSP access and describe your customers and use case. You can manage separate customer environments, users, agents and concurrent-call capacity centrally, using your own PBX and OpenAI API key.
Your customers. Your connections. One platform.
Ready to add live voice agents to your portfolio?
Start pay as you go. No minimum commitment. No long-term obligations.