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Voicemail is a step in your line’s call flow. You decide where callers reach voicemail, and what greeting they hear, by adding a Voicemail step to the flow.

What is Voicemail

Voicemail lets callers leave messages when you can’t answer. Messages are automatically transcribed and sent to your email with the audio recording. Customize your greeting to match your brand. Key benefits:
  • Automatic voicemail transcription
  • Custom greeting messages
  • Email notifications with recordings
  • Smart voicemail with AI summaries
Available on both Starter and Business plans.

How to set up voicemail

1

Open your line's call flow

Go to web.withallo.com, then Settings and Numbers, and pick the line. Scroll to Call flow and select Open designer.
2

Add a Voicemail step

Add a Voicemail step on the branch where callers should reach voicemail, usually If missed under Ring this line, or Closed under Business hours.
3

Set the greeting

Select the Voicemail step, then select Edit on the audio row. Record your greeting, upload an MP3 or WAV file, or write the text and let Allo read it out. See recordings and audio.
4

Save

Select Save in the top right. The flow goes live on the next call.
Voicemail messages are transcribed automatically. You receive both the audio and text via email.

Custom greeting messages

Writing effective greetings

Professional greeting template: Hello, you’ve reached [Your Name] at [Company Name]. I’m unable to take your call right now. Please leave your name, number, and a brief message, and I’ll return your call as soon as possible. Casual greeting template: Hi, this is [Your Name]. Sorry I missed your call. Leave me a message and I’ll get back to you soon. Out of office greeting: Thank you for calling [Company Name]. Our office is currently closed. Our business hours are [hours]. Please leave a message or call back during business hours.

Best practices

Keep it short:
20-30 seconds maximum. Callers want to leave their message quickly.
Be clear:
State your name, that you can’t answer, and what they should do.
Set expectations:
Tell them when to expect a callback. “I’ll return your call within 24 hours.”
Update regularly:
Change your greeting for holidays, vacations, or extended absences.
Professional tone:
Even casual greetings should be clear and polite.

Smart voicemail

What is smart voicemail

Smart voicemail uses AI to transcribe and summarize voicemail messages. You get:
  • Full text transcription
  • AI summary of key points
  • Caller information
  • Suggested actions
Available automatically on all voicemail messages.

What you receive

After someone leaves a voicemail, you get:

Email notification

Sent to your registered email address

In-app notification

Alert in Allo app with badge

Audio recording

Full voicemail audio file

Transcription

Text version of the message

Email notifications

What’s included:
  • Caller name (if known)
  • Caller phone number
  • Date and time of call
  • Voicemail transcription
  • Link to audio recording
  • AI summary
Configure email: Set your email in Settings > Profile > Work email Turn these emails on or off: go to Settings > Email notifications and choose which lines email you under Missed calls. See Email Notifications.

Voicemail settings

When voicemail activates

A caller reaches voicemail when the call flow sends them to a Voicemail step. Where you place the step decides when that happens:

Unanswered calls

Put the Voicemail step on the If missed branch of a Ring this line step. When nobody picks up within the ring duration, the caller goes to voicemail.

Outside business hours

Put the Voicemail step on the Closed branch of a Business hours step. Callers who ring while you are closed go straight to voicemail.Route by schedule and by caller

No key pressed in a phone menu

Put the Voicemail step on the No selection branch of a Phone menu step, for callers who press nothing or press the wrong key.

Voicemail vs. AI Receptionist

Each branch of your call flow ends in one or the other. You can use both on the same line, for example AI Receptionist on If missed and voicemail on Closed.

When to use voicemail

Best for:
  • Simple message collection
  • Starter plan users
  • Traditional business model
  • Callers who prefer leaving messages

When to use AI Receptionist

Best for:
  • 24/7 customer service
  • Answering common questions
  • Collecting specific information
  • Modern, interactive experience
Learn more about AI Receptionist

Access voicemail messages

In the Allo app

  1. Open Allo app
  2. Go to Inbox tab
  3. Voicemails appear with other call records
  4. Tap a voicemail to:
    • Listen to audio
    • Read transcription
    • View AI summary
    • Call back

Via email

  1. Check your email inbox
  2. Find voicemail notification from Allo
  3. Read transcription in email
  4. Click link to listen to recording

Voicemail history

All voicemails are saved in:
  • Allo app inbox (indefinitely)
  • Email inbox (until you delete)
  • Connected CRM (if integrated)

Troubleshooting

Check the call flow:
  • The flow has a Voicemail step on the branch the caller takes, for example If missed or Closed
  • That branch does not lead to an AI receptionist, Forward or Hang up step instead
  • The flow is saved: the header does not show Unsaved
Test: Call your number and don’t answer to verify voicemail plays.
Common causes:
  • The flow was not saved after editing the greeting
  • The uploaded file is not MP3 or WAV, so it plays as silence
  • The greeting was set on a different Voicemail step than the one the caller reaches
Solution:
  1. Open the line’s call flow and select the Voicemail step on the right branch
  2. Select Edit on the audio row and set the greeting again
  3. Select Save
  4. Test by calling yourself
Verify email settings:
  1. Check email address in Settings > Profile
  2. Look in spam/junk folder
  3. Verify email is spelled correctly
Whitelist Allo: Add Allo’s email address to your contacts to prevent spam filtering.
Why this happens:
  • Poor audio quality
  • Background noise
  • Caller speaking unclearly
  • Strong accents or language mixing
What you can do: Listen to the audio recording for accurate information. Transcription is a convenience feature, not always perfect.
Check these items:
  • Recording links expire after 90 days
  • Internet connection is active
  • Link wasn’t modified or truncated
Solution: Voicemails remain in Allo app inbox even if email links expire.
The greeting is set on the Voicemail step of your line’s call flow:
  1. Go to web.withallo.com, then Settings and Numbers, and pick the line
  2. Scroll to Call flow and select Open designer
  3. Select the Voicemail step, then Edit on the audio row
  4. Record, upload or write the new greeting
  5. Select Save
The new greeting plays from the next call.

Need help?

Contact support

Get help with voicemail settings