Caller ID for business apps
WhoCalls brings the caller ID from fixed lines, mobile phones and IP PBXs into your CRM, POS, appointment, booking or order app, so your users see who is calling before they pick up.
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Shown in your business app and on the phone, before the call is answered.
Benefits
Save real time
About 30 seconds per call on average: the caller's profile and details appear automatically.
Give a personal welcome
Greet every customer by name and deliver a superior experience from the first second.
Anticipate the reason for the call
With history and upcoming bookings on screen, they know what the caller needs and customers leave happier.
Become more competitive
Make your CRM, customer support or reservation app more appealing and more relevant.
Increase your revenue
Upsell the integration of your business app with your customers' telephony.
Gain customer loyalty
Your app becomes part of every call your customers take, every day.
Features
Landlines, mobile phones and IP PBXs all report to your app the same way, so your users see the caller before they answer, wherever the call comes in.
Calls on fixed lines
Show who is calling, with their details and history, before anyone picks up the phone.
Works with your customers' lines. Analog lines, internet boxes and virtual PBXs.
Analog phones: we provide the Wbox, a small box that connects to the phone and the line (PSTN or internet box).
IP phones: no extra equipment. The WhoCalls middleware integrates directly with the PBX.




Calls on mobile lines
Show who is calling, with their details and history, before the call is answered, both on the mobile and in your business app. Works on Android phones.
Pro Phone app. A complete phone app with everything users expect from a top-tier dialler: smart dialpad, recents, favourites, dual SIM and call blocking. Free and without ads.
Pre-integrated. The standard app comes connected to a set of business apps. For a tailored experience, choose a personalised, rebranded app.
Pro Phone is fully customisable: align every detail, from colours to branding and app name, with your own identity.
Unanswered calls
Unanswered calls hurt your customers' reputation and cost them sales. WhoCalls reports every missed and unanswered call on fixed and mobile lines to your app, in real time.
Real-time notifications. Your app knows about every missed call the moment it happens.
Your call to action. Send a notification, a message or an SMS to the caller, depending on your customer's use case.
WhoCalls SMS auto-reply. Or let WhoCalls send an SMS automatically, with a link to book, order or visit the website.
SMS from your business
Sorry, we're very busy right now and can't take your call. You can book an appointment online at:
resa.mybusiness.com
Delivered · 18:00
Every missed call becomes a booking opportunity.
Admin app
Manage all your fixed, mobile and virtual receivers from one screen: assign them to customers, check their status and switch them on or off.
Add and assign receivers. Create mobile, fixed or virtual receivers, assign each one to a customer, and activate or deactivate the service at any time.
Activity and history. Check each receiver's activity and the history of every change.
Or manage it from your own app. The WhoCalls API lets you create, assign, activate and monitor receivers without leaving your product.

How it works
Connect your business app to WhoCalls once. We handle the landlines, mobiles and PBXs of every customer you sign up.
API based, two endpoints only
Receive the caller ID of incoming calls and of unanswered calls. That is the whole integration.
A few hours to integrate
Most partners are live the same day, not after a long telephony project.
We guide you all along
The WhoCalls team supports you from the first test call to your first customers.
Analog line
via Wbox
Mobile
via Pro Phone
IP PBX
direct
WhoCalls middleware
Collects the caller ID and call status from every receiver, in real time.
Your business app
POST /incoming-callPOST /missed-callLook up the caller and show the customer card, history and next booking.
Use cases
Easy, simple, fast. If your users talk to their customers on the phone, WhoCalls makes your app more valuable to them.
Open the right contact record the moment the phone rings.
Recognise regulars and their usual order at the counter.
See the next appointment and reschedule without searching.
Greet guests by name and take the booking with their history in view.
Pull up open orders and delivery details for the caller.
Know the customer and their open tickets before saying hello.
Get started →
Your brand
Sell the service and the Wbox to your customers at the price and business model that suit you. On request, the Wbox, the service and the Pro Phone app can carry your brand.
For CRM, support and reservation apps
You have built the app your customers rely on every day. Add caller ID and missed-call alerts to it, out of the box.