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Published 9 December 2025Updated 7 min readMissed calls and voicemail

Automatic answering machine for Android: how to set it up

Set up an automatic answering machine on Android: forward missed calls to Heilo, add a greeting, then check the recording, transcript and SMS.

R
Robert Mater

TL;DR: On Android you can forward missed calls to Heilo instead of your carrier's voicemail. The caller hears your greeting and leaves a message; Heilo saves the recording, transcribes it, writes a summary and, if notifications are on, texts you the topic and a link. You do not need to install an app on the phone.

1. Problem: Phone rings, and you are working

You run a business, climb ladders, install systems, or are simply in a meeting. The phone rings at the worst possible moment. You can't pick up, so you reject the call or let it ring endlessly.

What does the customer do? Often they leave no voicemail at all. Carrier voicemail on Android often plays a generic "please leave a message after the beep", and many callers hang up instead. For you, it's just a missed call notification that is easy to miss in the thick of other things.

2. Losses and Lost Benefits

Every missed call is potentially a lost customer.

  • Loss of revenue: A customer who didn't get through to you calls the competition. Whoever picks up first takes the job.
  • Image: "Subscriber temporarily unavailable" or a full voicemail box gives the impression of a company that doesn't care about the customer or no longer exists.
  • Wasting time: Calling back "blindly" to unknown numbers is roulette. Maybe it's an important client, maybe telemarketing. You lose time verifying.
  • Stress: Constantly glancing at the phone and feeling guilty that you are not available tires you out and distracts you from actual work.

3. Solutions

How can you solve this on Android?

  1. Hiring a secretary: Effective solution, but expensive. Employee cost, taxes, equipment is a minimum of thousands per month.
  2. Traditional voicemail: Available from your carrier, but it stores audio unless your carrier and phone support more. Google's Phone app help (checked 19 October 2026) says visual voicemail depends on the carrier and country, and voicemail transcription is only available in English and Spanish, on Android 8.0 and up, with selected carriers.
  3. "Voicemail" apps: There are apps in the Google Play store, but they often have ads, require complex forwarding configuration, or drain your Android's battery running in the background.
  4. Answering everything: Trying to be "on the phone" 24/7 ends in burnout and errors in work performed.

4. How Heilo handles missed calls

In Heilo, the automatic answering machine is the Heilo Voicemail plan: cloud voicemail that your carrier forwards unanswered calls to. It is not an app you install (read more about modern answering machines).

For whom? For small businesses that use an Android phone (Samsung, Xiaomi, Pixel, Motorola) and cannot always pick up.

What do you get?

  • Your greeting: You record it in your own voice or type the text for Heilo to read out.
  • Transcript and summary: Heilo transcribes the message and picks out what the caller said, such as their name, the service they need, the location and a preferred date.
  • SMS notification: If you turn it on, you get the caller's details, number, topic and a link. The full transcript and the summary are in the panel, and on the “Customer potential” card you can record your own 1–10 rating; check names, amounts and dates against the recording.
  • No app on the phone: You only set up call forwarding at your carrier.

Heilo plays the greeting and takes the message. It does not hold a conversation with the caller, answer questions or book appointments; you or your team call back.

5. How to set it up on Android

  1. Create a Heilo account and set up your mailbox number. Record the greeting in your own voice or type the text for Heilo to read out.
  2. In the Heilo panel, open the forwarding instructions for your number. They show the destination number and a ready-made forwarding code, and you can set how long the phone rings before the call is forwarded.
  3. On the phone, open the Phone app, go to its settings and find Call forwarding. You can also type the ready-made code from the Heilo panel on the keypad and press call.
  4. Set forwarding when unanswered and, if you need it, when unreachable. Enter the Heilo number. Do not choose "always forward" if you still want to answer calls yourself.
  5. Call your number from another phone and do not answer. Listen to the greeting, leave a short message and hang up.
  6. Check the recording and transcript in the Heilo panel, and the SMS if notifications are on. Then make a second test call and answer it normally.

Menu names and locations depend on the phone; see how to forward calls on Android. On a phone with two SIMs or an eSIM, pick the right line first. Check with your carrier that forwarding is supported on your plan and what it costs. Using an iPhone? See the answering machine guide for iPhone.

FAQ – Frequently Asked Questions

Does Heilo require installing an app on Android?

No, Heilo.io works in the cloud. Just set up call forwarding to the Heilo number — you don't need to install anything on your Android phone.

Does Heilo work on every Android phone?

It does not need an app, so the phone model matters less than your carrier: your plan must allow forwarding to the Heilo number. Confirm this with your carrier and test the specific SIM or eSIM.

How much does the Heilo answering machine cost?

Heilo is priced per number per month and billed monthly; prices are net and VAT is added at payment. Messages after missed calls are covered by Heilo Voicemail. Heilo Select adds Heilo to calls you choose, and Heilo Line is the plan for sales teams: each rep gets their own business number, and calls made and taken through it come with a transcript, summary, tasks and the call coach (see the call assistant). Current prices are on the pricing page. Heilo Line includes 6 hours of recorded calls per number in each billing period; each extra hour is billed per minute at the rate on the pricing page and added to the next invoice.

Does forwarding also record calls I answer?

No. Missed-call forwarding only saves messages left in the mailbox. To capture a call you answer on your own number, use Heilo Select: on a second line you call Heilo and merge the calls (your phone and carrier must support conference calls), and Heilo records from the moment it joins. Heilo Line gives you a +48 business number from Heilo and records calls made and taken through it automatically; outbound calls start in the panel with Call via Heilo. With Heilo Line, a call you dial from the phone's ordinary Phone app does not go through Heilo, so it is not recorded.

Summary

Carrier voicemail on Android stores audio, and whether you also get text depends on your carrier, phone and language. Heilo takes the message through call forwarding, transcribes and summarises it, and can text you the topic and a link. Nothing is installed on the phone, but test the forwarding on your own SIM before you rely on it.

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