Free trial · 30 seconds

Try Koll on your own phone

Koll makes the most sense when you experience it. Pick your industry, enter your number and see exactly what your customers would see.

  1. 1Pick your industry.
  2. 2Enter your phone number.
  3. 3Receive a sample call and SmartCard.
  4. 4See exactly what your customers would see.

1 · Industry

Your choice sets the caller, the brand and the reason for the call.

Edit freely – the preview updates instantly (max 70 characters).

Ready-made examples

Photo on the card

2 · Your details

Your name, company and logo appear in the preview – and that is exactly the SmartCard we'll call you with.

3 · Phone number

4 · Preview

This is what the recipient sees

The preview updates with your choices.

9:41
NM

Nova Motors

Incoming call: Emma Clarke

Enquiry about the BMW 520

+44 20 7213 912

mobile

Message
Remind me
Decline
Answer
9:41
NM

Nova Motors

Business account

NM

Incoming call

+44 20 7213 912

Emma Clarke

Vehicle sales

Nova Motors

Verified caller

Incoming call: Emma Clarke

Call about your enquiry on the BMW 520

Phone number:+44 20 7213 912

9:41

Type a message

What arrives on my phone?

A sample call plus a SmartCard message showing the caller, the company and the reason for the call. No app, no install.

What happens to my number?

It's used only for the sample message and related follow-up, and deleted within 90 days.

Does the trial cost anything?

No. The trial is free and non-binding.