Guides

How to Transcribe a Phone Call (iPhone & Android)

QuillAI
··17 min read
How to Transcribe a Phone Call (iPhone & Android)

How to Transcribe a Phone Call on iPhone and Android

Whether you're a journalist who needs a record of an interview, a salesperson who wants to review their calls, or just someone who missed a key detail in an important conversation — knowing how to transcribe a phone call is increasingly essential. Call recording transcription turns audio into searchable, shareable text. This guide covers what your options are on iPhone and Android, what the legal considerations are, and how to get accurate text from any recorded call.

75%
Professionals say call notes are inaccurate
6.1B
Smartphone users worldwide in 2025
95+
Languages QuillAI can transcribe
3x
More information retained from transcripts vs memory
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Legal Notice: Record with Consent

Laws around recording phone calls vary significantly by country and US state. In 'two-party consent' jurisdictions (like California), all parties must agree to be recorded. Always inform the other party before recording a call. This article assumes you have proper consent.

3.5h
Avg weekly call time
95%+
AI accuracy
95+
Languages
<5 min
Per hour of audio

Step 1: Record the Call

Before you can transcribe anything, you need an audio recording. Here's how to do it on each platform:

Recording on iPhone

Apple has historically been restrictive about native call recording to protect user privacy. As of iOS 18, Apple introduced a built-in call recording feature (available in some regions), but options have varied by iOS version.

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iOS 18+ Native Recording

On supported devices, tap the Record button during a call. iOS will notify both parties that recording has started. The audio saves to your Notes app automatically.

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Third-Party Apps (older iOS)

Apps like TapeACall, Rev Call Recorder, or Google Voice support call recording on older iOS versions. These typically route the call through a recording server.

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External Microphone Method

Place your phone on speaker and record with a second device (another phone or a USB microphone into a laptop). Less convenient but works universally.

Recording on Android

Android is more flexible than iOS when it comes to call recording, though Google has been tightening restrictions in recent Android versions.

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Google Phone App (Pixel)

On Pixel phones with the Google Phone app, tap 'Record' during a call. The recording saves locally and the other party is notified.

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Manufacturer Apps

Samsung, Xiaomi, and other OEMs often include native call recording in their phone apps. Check your dialer settings — look for 'Record call' or 'Auto-record'.

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Third-Party Apps

Cube ACR, Boldbeast Recorder, and similar apps work on many Android versions, though newer Android 14+ versions have restricted microphone access during calls.

Step 2: Locate and Export Your Recording

After the call, your recording will be in one of these places depending on what method you used:

  • iOS 18 native: Saved in the Notes app, accessible from the call history
  • TapeACall/similar: Saved within the app, with options to share or email
  • Google Phone app (Android): Saved to internal storage under 'Recordings'
  • Cube ACR/similar: App's own folder, usually /storage/emulated/0/CallRecordings
  • External recording: Wherever you saved the audio on your second device

Export the audio file — typically as an MP3 or M4A — to your phone's files or directly to cloud storage. You'll need to access this file from a browser to upload it to a transcription service.

Step 3: Upload to QuillAI and Get Your Transcript

1

Open quillhub.ai in your mobile or desktop browser

QuillAI is a web platform — no app needed. Works on mobile Safari, Chrome, and any desktop browser.

2

Upload your call recording

Tap 'Upload file' and select your MP3 or M4A recording. QuillAI accepts all common audio formats.

3

Enable speaker identification

For a two-person call, turn on speaker diarization. QuillAI will label the transcript as Speaker 1 and Speaker 2, making it easy to see who said what.

4

Select language

Choose the language the call was conducted in. With 95+ languages supported, calls in Spanish, Mandarin, French, Russian, and dozens of other languages transcribe accurately.

5

Review and use the transcript

Your call transcript appears with timestamps and speaker labels. Search for specific topics, copy sections, or export the full text.

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Use Key Points Extraction

For long sales calls or interviews, QuillAI's key points feature extracts the most important moments automatically. Instead of reading a 40-minute transcript, you get the critical action items and decisions in a bulleted list.

Audio Quality Tips for Better Transcription

Call audio quality directly affects transcription accuracy. Phone calls use compressed audio codecs that can introduce artifacts, and poor signal quality compounds the problem. Here's how to maximize accuracy:

  • Use a wired earpiece rather than Bluetooth for better audio clarity when recording externally
  • Avoid areas with heavy background noise — a quiet room significantly improves recognition
  • Speak at a normal pace; rushing creates more transcription errors
  • If using the speaker method, keep both devices close but avoid audio feedback
  • VoIP calls (WhatsApp, Zoom, Teams) typically record at higher quality than traditional phone lines

Use Cases: Why People Transcribe Phone Calls

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Journalism & Research

Verbatim quotes from sources are non-negotiable in journalism. A transcript with timestamps is also a legal record of what was said.

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Sales & Business

Sales teams review calls to improve pitches, identify objections, and coach reps. Transcripts are faster to review than re-listening.

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Legal & Compliance

Lawyers and compliance teams need accurate records of client conversations. Audio plus transcript provides both a reference and proof.

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Healthcare

Doctors transcribing patient consultations (with consent) create accurate medical records faster than manual note-taking.

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Education & Research

Academic researchers conducting interviews transcribe calls for qualitative analysis, coding, and citation.

What About Live Call Transcription?

Some users want transcription happening in real-time during the call — not just after. For this, tools like Google's Live Transcribe (Android) or Otter.ai's live mode work well, though they require constant data connectivity and have privacy implications.

For most use cases, batch transcription after the call (using QuillAI) is more practical. You get better accuracy, the ability to review the full context, and you don't have to worry about internet interruptions during the call itself. For a full comparison, see our article on Real-Time vs. Batch Transcription.

If you're also transcribing other types of audio, check out How to Transcribe WhatsApp Voice Messages for a related workflow.

Transcribe Your Call Recordings in Minutes

Upload any MP3 or audio file to QuillAI and get an accurate, timestamped transcript. 10 free minutes on signup.

Start Transcribing
Is it legal to record and transcribe phone calls?
It depends on your jurisdiction. In many countries and US states, one-party consent is sufficient — meaning you can record a call you're part of. In two-party or all-party consent states (California, Florida, etc.), all participants must consent. Always check local laws and inform the other party.
What audio format should I upload for best transcription results?
MP3 and M4A both work well. Higher bitrate = better accuracy. If you have a choice, avoid highly compressed formats. WAV or FLAC give the best quality but result in larger files.
Can QuillAI separate two speakers in a phone call transcript?
Yes. QuillAI's speaker diarization automatically identifies and labels different speakers. For a two-person call, you'll see the transcript formatted as Speaker 1 / Speaker 2, which makes it easy to follow the conversation.
How long does it take to transcribe a 30-minute call?
Typically 2–4 minutes on QuillAI. Processing time scales roughly with audio length, but the platform is optimized for fast turnaround even on longer recordings.
Can I transcribe a call that was recorded in another app (Zoom, Teams)?
Yes. Any meeting recording exported as an audio or video file can be uploaded to QuillAI. Zoom recordings (.m4a or .mp4), Teams recordings, and Google Meet recordings all work perfectly.
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