Recording phone calls has become increasingly common, both for to protect ourselves from potential conflicts to obtain clear evidence in labor matters, contracts, harassment, or incidents with companies. With current technology, it's as simple as pressing a button… but that doesn't mean we can do it any way we want, or in any situation.
Before you start recording, it's key to be clear when it's legal, when it's a crime, and how to use those recordings without getting into trouble. Furthermore, each mobile phone (Android, iPhone, Pixel, Samsung, etc.) has its own technical limitations and options. In this guide, you'll see, in detail and with very practical examples, how to record calls. legally in SpainWhat tools can you use and what risks do you run if you go too far?
Is it legal to record a phone call in Spain?
The first thing to understand is the big difference between own and other people's recordingsYour own recordings are those in which you are part of the conversation; recordings made by others are those made by a third party who does not participate in what is being discussed.
In Spain, Yes, it is legal to record a conversation in which you participate.without needing to ask permission or notify others that you are recording audio. This applies whether you are an individual or acting on behalf of a company or organization.
This possibility is supported by the jurisprudence of the Constitutional Court and the Supreme Court, which have made it clear that the right to secrecy of communications (art. 18.3 CE) This argument cannot be used against someone already participating in the conversation. In other words, if you're speaking on the call, you already know the content, so recording it doesn't break that confidentiality.
Things change radically when the recording is made by someone who is not part of the conversation. In that case, to intercept or record a third-party call without judicial authorization constitutes a possible crime of discovery and disclosure of secrets, regulated in the article 197 of the Penal Codewith prison sentences and fines.
In short: if you're on the call, you can record it; if you're not, You cannot eavesdrop on or record other people's conversationsunless there is a court order that allows it within the framework of an investigation.
You are participating in the call: rights, nuances and GDPR
When you're part of the conversation, the general rule is clear: You can record without asking for permission. and the recording may be fully valid as evidence, provided there is no coercion, deception or provocation to obtain the content.
Constitutional doctrine speaks of participatory recordings (when the person recording is one of the participants) versus recordings made by third parties. In the former, the Constitutional Court has already stated, in classic rulings such as that of November 29, 1984 (STC 11/1984), that whoever records their own conversation with another does not violate Article 18.3 of the Spanish Constitution.
However, even if you can record, data protection regulations come into play when the call includes personal dataArticle 6.1 of the LOPDGDD (which adapts the GDPR) requires, in principle, unambiguous consent for data processing. However, Article 6.2 LOPDGDD It introduces very important exceptions.
According to this precept, consent is not required when data is processed for: execute a contract, protect a vital interest, perform public functions or when they come from publicly accessible sources and there is a legitimate interest, provided that fundamental rights are not violated. This opens the door for you to record, for example, calls related to contracts, labor disputes or situations that put your safety at risk.
In fact, in cases of harassment, threats or violence, data protection regulations and case law themselves admit that record the conversation as protection of a vital interestThis way, you could record a call from your boss harassing you, someone threatening you, or a person scamming you, always with you being an active participant in that call.
You don't participate in the call: why it's usually a crime
When we talk about recordings in which You don't intervene —for example, tapping your partner's mobile phone, recording a colleague talking to another, or installing a device to record calls between third parties— we go into the realm of the illegal almost without nuance.
Article 18.3 of the Constitution guarantees the secrecy of communications (postal, telegraphic, telephone, etc.), which can only be limited by court order. And Article 197.1 of the Penal Code punishes anyone who, in order to discover secrets or violate the privacy of another, intercept telecommunications or use technical devices for listening or recording, with prison sentences of one to four years and a fine.
Therefore, if you record a call in which you are not participating, unless you do so with judicial authorization (For example, in the context of a police investigation), you would be committing a potential crime of discovering and revealing secrets. There are no "buts": Recording other people without their consent and without a court order is illegal.and will very rarely be admitted as evidence in court.
Recordings with minors
When children are involved, the situation becomes more complicated. Many parents consider recording their children to see if they are suffering. bullying, abuse, or certain conflicts without the minor knowing, or without the other participants being aware that it is being recorded.
If the recording is made by an adult without being a direct participant in the conversation between minors, we are faced with recordings of othersThis carries the risk that they could be deemed illegal and therefore inadmissible in court. Technically, it would involve intercepting third-party communications, a power reserved for judicial authorities.
The case is different in which be the one who records the conversation in which they participate (for example, a student recording the insults of a classmate or teacher). In that case, the recording is considered their own or participatory and, in principle, could be used as evidence if its authenticity is proven and it is obtained through a non-coercive channel.
Recordings and emergency services
In Spain, the emergency services —112, police, firefighters, health servicesThey often record incoming calls to better manage incidents, ensure security, and review what happened later. These recordings are made under legitimate and controlled purposewith security measures and restricted access to authorized personnel.
However, for the average citizen, the situation is different. As a general rule, it is not permitted to record conversations with emergency services for purposes unrelated to emergency management. It is considered a possible intrusion into the privacy of staff and the proper functioning of the service, except in very specific cases where it could be justified by legitimate interest and always with great care.
Can I release a call that I legally recorded?
Even if you legally recorded the call you participated in, what you do with that recording afterward is another matter entirely. Sharing it with third parties is much more restricted, because it involves... right to privacy and honor of the other person.
It is not usually a crime to share a recording in which you participate if the content is not sensitive or does not seriously affect the privacy of the other person, for example, a simple commercial misunderstanding without any personal informationEven so, the affected party could file a civil claim if they believe their honor or image has been damaged.
The Penal Code, in the Article 197 And especially in section 197.7, it aggravates the situation when recordings or images obtained in intimate contexts (especially romantic or sexual) are disseminated without permission, even if the person recorded consented to the recording at the time. Dissemination without authorization, if seriously undermines personal privacy, is punishable by imprisonment or a fine.
And although the text refers to audiovisual recordings, judicial practice usually extends this criterion also to voice recordingsespecially if the content is very intimate. In those situations, sharing the audio, even if you're a participant in the call, can become a crime of disclosure and discovery of secrets.
Therefore, if you need to use a recording, the wisest course of action is to limit yourself to to submit it in a legal proceeding or present it to your lawyer or the police, avoiding its mass dissemination through social networks, WhatsApp groups or similar.
Validity of recordings as evidence in court
One of the most common questions is whether Call recordings serve as evidence in a trialThe general answer is yes, but with many nuances. Courts tend to admit participant recordings provided that:
- The person who recorded the video should be part of the conversation. and can be identified as an interlocutor.
- There was no coercion, extreme deception, or artificial provocation. to obtain the declaration.
- Privacy has not been disproportionately violated from the other participant, especially if the topic is not related to the subject of the trial.
Labor case law, for example, has admitted recordings of workers speaking to their bosses when the content It dealt with issues of work, threats, dismissals, or illegal conditions.The Supreme Court has made it clear that, in many cases, the right to effective judicial protection and the defense justify providing this evidence.
However, if the recording contains private conversations that are not directly related to the matter of the proceedings, or if they have been captured unnecessary intimate detailsThe judge may exclude those fragments or even reject the entire evidence for violating fundamental rights.
Furthermore, for the recording to have probative value, it is usually required that its authenticity can be demonstrated. authenticity and integrity: that has not been manipulated, cut, or edited. In many cases, a computer legal expert to certify the file, prepare a technical report and, if necessary, transcribe the content for the court.
Certification, expert analysis and transcription of recordings
When a recording is going to be used in a legal process, it is highly recommended—and sometimes almost essential— certify it through a computer expertThis professional analyzes the file, reviews metadata, formats, possible cuts, and generates an expert report that confirms the recording is authentic and has not been altered.
In complex cases, biometric techniques, such as fingerprint analysis, can also be used. glottal footprint of the voiceTo confirm that the speakers are who they claim to be, this is done by comparing a voice sample recorded under judicial supervision with the voice appearing in the disputed recording.
Along with the technical report, it is usually very useful to have a literal and complete transcription The transcript of the conversation, signed by the expert witness, is provided so that the judge and the parties can easily access the information during the trial. Any omissions, errors, or manipulations in this transcript can be challenged, so it is advisable that it be prepared by a specialist.
Record your boss or coworkers
In the workplace, recording calls or meetings is a sensitive issue. The general rule remains the same: If you participate, you can record; if not, you can't.But there are important particularities in the work environment.
The Constitutional Court and the European Court of Human Rights have indicated that, in some work contexts, a worker may have a “reasonable expectation of privacy"It's not the same to record your boss when he's telling you about a dismissal or a disciplinary sanction, as it is to record a private conversation in the cafeteria about his personal life."
Judgments such as that of the Supreme Court 676/2014 emphasize that, when the interlocutor acts in his capacity as a representative of the company and in the exercise of disciplinary powersThat conversation is not part of their strictly personal privacy. In such cases, a clear recording can be key to proving a unfair dismissal, harassment or irregularities in working conditions.
That doesn't mean you can then do whatever you want with the recording. Sharing a work conversation—for example, by posting it on social media or forwarding it en masse— may constitute a crime of discovery and disclosure of secrets, in addition to grounds for a proper disciplinary dismissal.
Record a business call or a call with a company
It's very common that, when you call a telecom, a bank, an insurance company, or another serviceYou might receive a notification such as "this call may be recorded." Companies are required to inform you that the call is being recorded and the purpose of that recording, usually based on the Article 6.1 of the GDPR (consent or execution of a contract).
What many people don't know is that you, as a customer, can also to legally record that call without warningprovided you participate in it and don't share it with third parties. Saving a conversation with a salesperson serves, for example, as proof of agreed conditions, offers, minimum stays, claims or verbal commitments.
Additionally, you can request the company a copy —at least transcribed— of the recording which they themselves have done, especially if the conversation has contractual relevance. This is very useful in disputes about rates, clauses, or service modifications.
How to make a legal and "well-made" call recording?
If you want a call recording to be useful and not cause you headaches, it's advisable to follow some basic guidelines to ensure it's legal, clear and usable as evidence:
- Be part of the conversationParticipate actively, don't secretly record other people's calls.
- Do not tamper with the fileAvoid cutting, editing, or mixing pieces; any editing may call its authenticity into question.
- Ensures good sound qualitySpeak clearly, avoid background noise, and check that all parties can be heard properly.
- Save the recording in an organized way: Name it with date, time and context (“Call with X about internet contract”).
- It limits the spreadShare the audio only with your lawyer, police, or court; no social media or open groups.
If you anticipate that the call could be important for a trial, consider from the outset the possibility of to assess it (certification and expert report)especially in criminal, labor or civil proceedings of a certain magnitude.
How to record calls on Android (apps and built-in features)
The landscape on Android has changed considerably. Up until Android 9, many phones included a native function to record calls within the phone app itself. However, Google has been limiting these possibilities for legal and privacy reasons, and in recent versions, automatic recording is blocked on most devices and in many countries.
Even so, depending on the model and the country, you can use both the Google Phone app such as manufacturer-specific applications (Samsung, Xiaomi, etc.) or third-party apps, always remembering that The responsibility to respect the law is yours..
Recording with the Google Phone app
On some Android phones with the Phone app, if your carrier and country allow it, you can:
- Always record calls from unknown numbers or that are not in your contacts.
- Always record calls from specific contacts that you choose.
- Start recording a specific call while it is in progress.
Before the recording starts, the app itself usually send a voice message to inform all participants that the call is being recorded, in order to comply with the regulations of certain countries where the consent of all parties is mandatory.
The general requirements are usually:
- Android 9 or higher on most devices.
- On Pixel, starting from Pixel 6 with Android 14 for the standard function.
- Have installed the Latest version of the Phone app.
- Being in a country where call recording is permitted in that app.
To activate automatic recording of numbers that are not in your contacts, you usually need to go to Settings > Call recording > Always record and select the unknown numbers option. From there you can also configure recording retention and automatic deletion on some models.
Calls cannot be recorded in all scenarios: for example, You won't be able to record until the other party answers, whether the call is on hold or you're on a conference call.In addition, the recordings are saved locally on the device and They are not included in external backups by default., reinforcing privacy.
Record calls on Samsung mobiles (One UI)
On many Samsung Galaxy devices with One UI 7 or higher, the native phone app includes a feature to fairly comprehensive integrated recording, always subject to the laws of the country.
The usual flow is:
- Verify in Settings > About phone > Software information that you have a compatible version of One UI.
- Open the Phone app, enter Settings > Record calls and configure whether you want automatic or manual recording of certain numbers.
- During the call, tap the button Record to start and press it again (or hang up) to stop.
The recordings are stored on the phone, usually in a folder. “Recordings/Call Recordings”and in some models you can transcribe and summarize automatically, which is useful if you want written text of the conversation.
Third-party apps for Android
When the system doesn't offer a built-in function or doesn't work in your country, you can resort to third-party apps, knowing that:
- Not all of them work on all mobile phones. due to Android limitations.
- It's worth checking thoroughly. permissions, opinions and privacy policy before installing them.
Among the best known are:
Call RecorderIt allows you to choose whether to record incoming voice, outgoing voice, or both, and integrates with Google Drive to upload backups. It's useful for having conversations always at hand and organized by date, number, or duration.
Call Recorder – Cube ACRIn addition to phone calls, it can record audio from WhatsApp, Telegram, Messenger and other VoIP apps, centralizing important communications in one place. It offers automatic and manual recording functions and various storage options.
External devices: record without relying on your mobile phone
Another universal alternative is to use an external recording device, such as a voice recorder or specific devices like Plaud Note. The great advantage is that these systems usually work on virtually any mobile phone, regardless of operating system restrictions.
A basic method consists of using another phone or a recorderYou put the call on speakerphone, bring the second device closer, turn up the volume, and record the ambient sound. Although it may seem rudimentary, the quality is usually more than enough to understand voices and, if necessary, transcribe the conversation with the help of AI or an expert.
Devices like Plaud Note add extra features: they attach magnetically to your phone, have a specific "phone call" mode, vibrate when you start and finish recording, and integrate with an app that allows reproduce, transcribe and summarize The calls. However, you are also required to comply with the regulations of your country and, in some cases, the device itself will sound an alert that recording has started.
Record calls on iPhone (iOS)
On iPhone things are more complex. iOS does not allow direct call recording It does not natively store audio from phone communications, and it also severely restricts what apps can do in terms of microphone and line access.
That's why apps that allow you to record calls on iOS use a trick: They add a third number to the call as a "bridge"Basically, you're holding a conference where one of the participants is the recording service. The cost and complexity are usually higher, and almost all reliable options are paid (usually subscription-based).
Among the most commonly used are:
RecMe Call RecorderIt handles organizing the three-way call, saves the audio recordings, and in many cases allows upload them to the cloud so you don't lose them if your iPhone is stolen or lost.
HD Call RecorderIt uses the same conferencing system to capture the call and saves the files within the app itself. It usually offers a free trial period followed by a subscription model.
In any case, every time you use these systems, remember that The cost of the call may vary (especially if the bridge number is a toll number) and that you still have to respect the legal rules of recording and dissemination, just like on Android.
Safety tips and detection of possible recordings
If you're worried that other people might be recording your calls without your knowledgeThere are some basic recommendations that can help you, although there is no foolproof method:
- Keep the operating system up to dateThe latest versions of Android and iOS implement improved permission controls and notification systems.
- Check the installed appsBe wary of apps with excessive microphone, call, or accessibility permissions if you're not clear on their purpose.
- Be alert for unusual behaviorConstant interference, echoes, suspicious noises, or strange questions may make you suspicious, although they are not proof of anything on their own.
- Use end-to-end encryption appsSome secure messaging apps make it difficult for third parties to record conversations using spyware.
If you believe you are being recorded or spied on without your consent, it is highly recommended consult professionals (experts, lawyers, cybersecurity experts) to analyze the device and assess possible legal action.
In short, recording calls in Spain can be a powerful tool to protect your rights, provided that Be part of the conversation, respect the privacy of others, do not manipulate the recordings, and carefully control their use and dissemination.Furthermore, knowing the technical capabilities of your mobile phone and the legal limitations will allow you to take advantage of this option without crossing the line of what the law considers an unlawful intrusion or a crime of revealing secrets. Share the information so other users know how it's done.
