Call Flow
Call Whispers: know who's calling and why, before you say hello
A short audio message plays to your team before the call connects, telling them the source, campaign or intent behind it. The caller never hears it.
14-day free trial · No credit card · Billed per answered call
The caller dialled
Connect
Incoming call · (555) 019-34210:00
Only Sam hears this · English (US), female voice
Google Ads caller, emergency repairs campaign.
The caller hears ringing.
Caller(555) 019-3421
SamSales team
- Saved with the call
- Google Ads caller, emergency repairs campaign.
- Tracking number
- Google Ads · (512) 555-0148
What is a call whisper?
A call whisper is a short audio message that plays to the person answering a phone call, before the call connects. It tells them where the call came from, such as the ad source, campaign or caller intent, so they can greet the caller with the right context. The caller does not hear the whisper.
Whispers are most useful when one team answers calls from many campaigns, locations or clients.
How do call whispers work?
Write the message, drop it into your call flow, and every answered call starts with context.
Write or record your whisper
Type a message and pick a language and voice for text-to-speech, or give each tracking number its own whisper.
1Write
Add it to your call flow
Drop the whisper step into Call Flow Builder right after Dial, so it plays as your team picks up.
2Place
Answer with context
Your team skips “How did you hear about us?” and gets straight to helping.
3Answer
The smarter way to handle every call
Instant context, in any language, built into your call flow.
Instant context
Know which campaign, source or intent triggered the call before you pick up, so every conversation starts prepared.
In the language your team speaks
Type a message and pick one of 22 languages and variants, with a female or male voice, for each whisper.
A whisper for every number
Give each tracking number its own audio, so a billboard, a branch or a client line announces itself before you pick up.
Built into your call flow
Add a Call Whisper step after Dial in Call Flow Builder, next to greetings and call recording.
Shorter, more efficient calls
Skip the guesswork and back-and-forth. Get the context upfront and save valuable time.
Never miss the context
Have the whisper repeat until your agent presses a key to accept, so the caller keeps hearing ringing until they're ready.
Hear the difference in the first 10 seconds
Whisper whatever your team needs to know. A few words change how the call starts.
- “Google Ads caller”
- “Spring offer”
- “Austin location”
- “Client: Smith Dental”
- “Quote request”
- “Answer in Spanish”
- “After-hours emergency”
- “Existing customer line”
- “Billboard on I-35”
- “Meta lead”
- “VIP account”
- “Pressed 2 for sales”
- “Radio ad caller”
- “Organic search”
- “Book a demo page”
Same caller, same question. One agent knows the context.
Context at every step of the call
Whispers sit in the middle of a fully tracked call.
- Before the call
Nimbata matches the call to its source
With Dynamic Number Insertion, from the visitor's session or from a number kept for that source.
- As it rings
Your team hears the whisper
They pick up already knowing the campaign or intent.
- After the call
AI summarizes what happened
AI Call Summaries capture the outcome and next steps.
Call whisper vs call greeting
A greeting talks to the caller. A whisper talks to your team.
| Call greeting | Call whisper | |
|---|---|---|
| Who hears it | The caller | The person answering |
| When it plays | Before the caller is connected | As your team picks up, before the caller is connected |
| Purpose | Welcome, disclaimers, recording notice | Give your team the source, campaign or intent |
| Example | “Thanks for calling Smith Plumbing.” | “Google Ads caller, emergency repairs.” |
| Use together? | Yes. Both are steps in the same Nimbata call flow. | Yes. The greeting plays to the caller, the whisper to your team. |
Who uses call whispers?
Agencies
Tell answering teams which client a call belongs to before they pick up.
Sales teams
Open with the offer the caller saw, not a generic greeting.
Multi-location
Know which branch or service area the caller is asking about.
Shared call centers
One team, many lines, and every call still answered with context.
Frequently asked questions
What is a call whisper?
A call whisper is a short audio message played to the person answering a call, before it connects. It gives them context such as the campaign, source or caller intent.
Can the caller hear the whisper?
No. Only the person answering hears it. The caller hears nothing until the call connects.
Can I upload my own recording?
Yes. Upload your own audio and use it as the whisper, or type a message and Nimbata turns it into speech.
What's the difference between a call whisper and a call greeting?
A greeting plays to the caller before they're connected, for a welcome, business hours or a recording notice. A whisper plays only to the person answering, with context like the source or campaign. Both are steps in the same call flow.
Can different numbers play different whispers?
Yes. With a tracking number whisper, each tracking number in the call flow can play its own audio.
How long should a call whisper be?
A few words is enough, such as the source and the reason for the call. Your team hears it as they pick up, so the shorter it is, the sooner they greet the caller.
Can I use text-to-speech to create a call whisper?
Yes. Type the message you want and it's turned into a clear audio whisper your team hears before answering.
Still unsure? Talk to a human
Everything you need for call tracking.
Set up your first whisper in minutes and answer every call with context.
- 14-day free trial, no credit card
- Billed per answered call
- 24/7 expert support
- No long-term contracts