Every Employee.
Their Own AI.
For the first time, everyone on the team gets a personal AI phone assistant — right in the browser. With a single click you hand the conversation over to the AI, take it back or forward it to a colleague. You decide who leads the conversation — you or your AI.
Every Employee. Their Own AI.
For the first time, everyone on the team gets their personal AI phone assistant — with its own voice, its own knowledge, its own calendar. No one else on the market offers this.
Hand over. Take back. Forward.
With a single click you pass the conversation to the AI, take it back or forward it to a colleague. You stay in control every second — the AI is your backup, not your replacement.
Works everywhere in voiceOne.
Calls ring through even when you're working in the CRM, the calendar or on the dashboard. No call is lost because a screen was open.
No phone system to maintain.
voiceOne hosts everything. Updates, SIP registration, encryption, failover — you simply use your browser.
What the Agent Softphone can do
A complete cloud phone system that connects your AI assistants and your team in a single interface. Every feature has a purpose: never miss a call, hold conversations without friction, hand over without loss of quality.
Ready to use immediately
Roll out in minutes instead of weeks. No IT ticket, no VoIP provider onboarding, no headset driver.
- Browser-based via WebRTC — runs in Chrome, Edge, Safari and Firefox. No installation, no admin rights needed.
- Own SIP identity per AI agent — automatically generated, stored encrypted, no manual configuration.
- Deep integration into voiceOne — no external account, no second login, no duplicate user management.
- Multiple devices at once — all of an employee's open browser tabs ring in parallel. Whoever answers first takes the conversation.
- Works on every voiceOne page — dashboard, contacts, calendar, tickets. Calls come through everywhere.
Working together with the AI
The heart of the softphone: the seamless handover between AI assistant and human. No caller notices that anything is being switched over.
- Active/Inactive toggle — one click decides whether the AI answers immediately or your browser rings first.
- Configurable ring timeout — you decide how long the softphone rings before the AI takes over.
- Intelligent fallback — if not answered: the AI takes over, voicemail or forwarding to another agent. No call ends in nothing.
- AI-to-human transfer built in — the AI recognises for itself when the caller wants a real employee and puts them through cleanly.
- Cross-engine transfer — switching between Gemini and Ultravox agents without the caller noticing anything. The voice of the target agent is adopted automatically.
Answer and control the call
Call handling that feels like a native desktop phone — only in the browser.
- Full-screen ring overlay with caller info, a pulsing animation and large accept/decline buttons.
- A real ringtone — not a generic beep, but a professional phone ringtone.
- Native system notifications in macOS Notification Center and Windows Action Center — even when the browser tab is running in the background.
- Tab title flashing for extra attention when several tabs are open.
- Click on the notification opens the browser tab and answers the call directly — one click, done.
- Live call duration in the in-call bar, always visible.
- Mute with a single click — the icon clearly shows the current status.
- DTMF keypad during the call for IVR navigation and input.
- Hang up prominently in red — no confusion, no misclick.
Forwarding and handover
The complete transfer arsenal of a business phone system — plus handovers to AI agents that no conventional system can do.
- Cold transfer to a phone number — any landline or mobile number.
- Cold transfer to another AI agent — the caller lands directly with the next AI, including the correct voice and personality.
- Forward to another employee, who also uses a voiceOne softphone.
- Expand the conference — bring any participants into the ongoing call by phone number, even multiple times.
- "Take with me" function — take the call to your own mobile with a single click. The browser leg hangs up cleanly, and the conversation continues seamlessly.
Outbound calls
Outbound calls are just as seamless as inbound — no intermediate steps, no queries.
- Click-to-Call from the integrated dial pad. One click and the call goes out.
- Automatic caller ID — uses the phone number assigned to the agent from your voiceOne phone numbers.
- Instant connection — no second click needed to answer. Outbound is detected via a custom header and accepted automatically.
- Runs over your SIP trunks — Twilio, Sipgate, Vialine, Telekom, Zaluma — everything you have already configured in voiceOne.
History & context
Everything you need to know about the last call — right in the softphone, not in a separate tab.
- Call history in the softphone — the agent's last 50 calls at a glance.
- Filter by All, Incoming, Outgoing, Missed — instantly see what needs attention.
- Colour coding — green for incoming, blue for outgoing, red for missed. No guesswork.
- Caller name from the CRM, when the contact is known — right in the history, with no extra click.
- AI-generated call summary is shown right away — you know instantly what it was about.
- Direct callback with a single click straight from the history.
Audio quality and connection stability
A phone has to be reliable. That's why we built the things you never have time for in the rush of everyday work so that they simply work.
Audio settings
Full control over microphone, speaker and ringtone — with a live preview, so you never have to set things up blind.
- Microphone selection from all system audio inputs — headset, built-in mic, USB device.
- Speaker selection in Chrome/Edge — e.g. a headset for calls, Bluetooth speakers for the ringtone.
- Live microphone test with a level meter (green–yellow–red). You can see instantly whether the mic is working.
- Ringtone on/off — one click for quiet when you need it.
- Ringtone volume as a slider with a live preview right as you drag.
- Preview function with start/stop — set the volume in peace, without having to wait for a real call.
- Persistence of audio settings — set it once, and it's back instantly after every reload.
Stability and connection quality
A dropped WebSocket must not mean lost calls. That's why the softphone is designed for self-healing.
- Automatic reconnection on WebSocket disconnect with exponential backoff. No manual action required.
- Visible offline indicator, when the connection is lost — including a "Reconnect" button.
- Visibility watchdog — as soon as you return to the tab, the SIP registration is checked immediately.
- Transparent status display in the sidebar: connecting / connected / error. No hidden states.
Who is the Agent Softphone made for?
For every business that has to make calls professionally — but no longer wants to bother with traditional phone systems.
Doctors' and dental practices
Medical assistants answer calls right at the reception PC, the AI handles appointment peaks, and callbacks run with a single click from the history.
Craftsmen
The AI works the line while the team is on the building site. In the evening or at the office, the softphone takes over — without callback chaos.
Law firms and tax advisers
Pre-qualification by the AI, transfer to the right department at the push of a button. GDPR-compliant, with servers in Germany.
Property and estate agents
"Take with me" to your mobile when you set off for a viewing. No call is lost, wherever you happen to be.
Customer service and support
Multiple agents reachable in parallel, intelligent routing between AI and humans, full context from the CRM on every call.
SMEs with home-office teams
One unified phone for all locations. Employees only need to log in — the phone system comes with them.
Ready to bring your phone into the browser?
Try the Agent Softphone free and with no obligation — included in the voiceOne trial.