Whisper tone

When a caller dials one of your phone numbers, our IVR platform connects the call and forwards it to your chosen destination — a landline, mobile, or VoIP system. Before the call is connected to you, a short audio message plays in your ear only. The caller does not hear anything; they simply hear a normal ringing tone while waiting. The whisper message tells you which phone number was dialled, so you know the context before you even say hello.

The entire process takes less than a second. There is no awkward silence or delay from the caller’s perspective. You hear the whisper, you know what to expect, and you answer accordingly.

If your business operates across multiple countries — say a British number, a German number, and a French number all forwarded to the same mobile — the whisper tone becomes indispensable. Without it, you have no way of knowing whether the caller dialled your London, Berlin, or Paris number until they start speaking. With it, you hear “Germany” and can open with “Guten Tag” instead of guessing.

This is particularly valuable for small teams and owner-managed businesses where one person or a small group handles calls from several markets. The whisper tone turns a single mobile phone into a multi-country reception desk.

Many e-commerce businesses operate several webshops or brands under one company, each with its own phone number on the contact page. Without a whisper tone, all those calls arrive on the same phone and you have no idea which shop the customer is calling about. With the whisper, you hear “Shop A” or “Shop B” before you pick up and can answer with the right brand name and context straight away.

The same applies to businesses with separate numbers for departments — sales, support, accounts — all forwarding to a small team. The whisper tells you which number was dialled so you can greet the caller correctly every time. No more “Sorry, which company were you calling?”

Some internet telephony providers require you to install an app on your mobile phone to separate business calls from private calls. The problem is that app-based calls travel over the internet, which means they depend on your data connection. In practice this leads to missed calls, lower audio quality, and dropped connections — especially on the move or in areas with patchy mobile data.

There is another downside to the app approach: not everyone wants to install a business app on their private mobile phone. Asking colleagues or staff to put company software on a personal device creates friction and reluctance — and if they refuse or forget, calls go unanswered.

With CallFactory, your business calls are forwarded directly to your mobile number through the mobile network, just like a normal phone call. No app needed, nothing to install on anyone’s phone. The call arrives reliably every time, with the highest possible audio quality. The whisper tone plays before the call connects, so you instantly know it is a business call and can answer professionally. Your private number stays private, your business calls never get lost, and you do not need to rely on an internet connection.

CallFactory offers six distinct whisper tones out of the box — each clearly different so you can assign one per number and recognise them instantly. If you prefer something more specific, you can upload your own audio file: a short spoken message like “Sales line” or “French number” or even a jingle that matches your brand. You can change the whisper tone at any time through the dashboard without any downtime or disruption to live calls.

The whisper tone is included free with every CallFactory number. There is nothing to install, no hardware to configure, and no per-call charge. You activate it through the dashboard in a few clicks, assign a tone or recording to each number, and it works immediately.

This feature is included free with every business number or international number.