Google Pixel’s Call Screen may start automatically screening robocalls

We can debate all day about the quality of the hardware on Pixel smartphones, but I’m sure that most of us can agree that the software is where Pixel devices really shine. Each new Pixel device introduced new software features that are widely sought after in the community, and for thePixel 3, one of those new features was Call Screen. This feature is available for all Pixel devices and even some Motorola phones as well, and it helps shield you from robocallers by answering calls with a series of questions to figure out why you’re being called. Describing Call Screen makes it seem incredibly “smart,” but in reality, initiating it and selecting responses are all user-controlled. That could change in an upcoming update, however, as we spotted strings for a new automatic Call Screen feature.

An APK teardown can often predict features that may arrive in a future update of an application, but it is possible that any of the features we mention here may not make it in a future release. This is because these features are currently unimplemented in the live build and may be pulled at any time by the developers in a future build.

Google Phone v42 rolled out earlier this morning on the Google Play Store, and an APK for the update is available on APKMirror. We downloaded the APK and decoded the resources to look for new strings. In the latest update, we found a large number of strings relating to a feature code-named “revelio.” We’ve been tracking the development of this feature since early August when code for it was first added, but at the time, it was ambiguous whether it was a new Call Screen feature or spam detection feature. The strings now make this clear. The code-name “revelio” likely refers to the Harry Potter  spell that removes magical disguises.

Automatic Call Screening

These first strings describe the settings toggles for automatic call screening. You’ll be able to either automatically screen to decline robocalls, ring the phone (which is the default behavior), or automatically silently decline the call.

<string name="call_action_label_automatically_screen">Automatically screen. Decline robocalls.</string>
<string name="call_action_label_ring_phone">Ring phone (default)</string>
<string name="call_action_label_silently_decline">Silently decline</string>

This next batch of strings describes how the automatic Call Screen feature works. The demo page says that theGoogle Assistant automatically answers unknown calls on your behalf; detected robocalls are silently declined without ever interrupting you, while unknown numbers ring a few moments later and a transcript is saved of the call. Any number saved in your contact list is never screened so you’ll always receive them. If the Assistant was unable to automatically screen the call, you can tap a button in the notification to initiate manual Call Screen (ie. the current functionality.)

When the Assistant automatically answers calls for you, you have the option to save the audio from those short calls. We spotted evidence for thisback in early August, but at the time it wasn’t clear if the feature would be available for manual Call Screens due to potential legal issues with users recording calls in some US States. Now it’s clear that this feature is intended for automatic call screening, which makes sense as the Google Assistant will always announce to the other party that it will be recording calls.

Revelio Strings. Tap/click to expand.

<string name="revelio_callers_how_it_works_text">"To turn off automatic screening select the \"Ring phone (default)\" setting for unknown calls. Your contacts are never automatically screened. Automatic screening won't work if your phone is connected to headphones or speakers. Call Screen doesn't use data or Wi-Fi but does use carrier call minutes. %1$s"</string>
<string name="revelio_demo_audio_button_text">Hear what the caller hears</string>
<string name="revelio_demo_key">revelio_demo_key</string>
<string name="revelio_demo_page_1_description">Your Assistant automatically answers unknown calls. Detected robocalls are silently declined; other unknown calls ring a few moments later with a transcript of the call. %1$s</string>
<string name="revelio_demo_page_1_title">Robocalls are declined without interrupting you</string>
<string name="revelio_demo_page_2_description">Your Assistant never automatically screens your contacts, so you receive their calls immediately.</string>
<string name="revelio_demo_page_2_title">Calls from your contacts are never delayed</string>
<string name="revelio_demo_page_3_description">"If a call isn't automatically screened, you can tap to have your Assistant find out who's calling so you can decide to answer or decline."</string>
<string name="revelio_demo_page_3_title">You can always screen other incoming calls</string>
<string name="revelio_demo_setting_title">See how Call Screen works</string>
<string name="revelio_demo_title">How Call Screen works</string>
<string name="revelio_demo_unable_to_fetch_audio">Unable to fetch sample audio</string>
<string name="revelio_demo_unable_to_play_audio">Unable to play sample audio</string>
<string name="revelio_dialog_button_cancel_call">Cancel</string>
<string name="revelio_dialog_button_end_screen">End current call, start new call</string>
<string name="revelio_dialog_description">Your Assistant is automatically screening an unknown call. To start a new call, end the current call.</string>
<string name="revelio_dialog_header">End current call?</string>
<string name="revelio_end_call_after_voicemail">"Thanks, I'll pass along your message. Goodbye."</string>
<string name="revelio_end_call_user_missed_internal_message">The call was missed</string>
<string name="revelio_google_help_fallback_uri">https://support.google.com/phoneapp</string>
<string name="revelio_how_it_works_key">revelio_how_it_works_key</string>
<string name="revelio_intro">"Hi. This is the Google Assistant. Can I ask what you're calling about?[sonic branding]"</string>
<string name="revelio_no_response_from_caller_ui_text">No response from caller</string>
<string name="revelio_pref_title">Call Screen</string>
<string name="revelio_preference_summary_automatic_screening_off">Automatic screening off</string>
<string name="revelio_preference_summary_screening">Screening %1$s</string>
<string name="revelio_promotion_details">Turn on automatic Call Screen to let your Google Assistant screen unknown calls automatically. Detected robocalls will be declined without interrupting you.</string>
<string name="revelio_promotion_title">Try automatic screening</string>
<string name="revelio_save_audio_setting_key">revelio_save_audio_key</string>
<string name="revelio_save_audio_setting_summary">Save the audio from calls answered by your Assistant</string>
<string name="revelio_save_audio_setting_title">Save Call Screen audio</string>
<string name="revelio_setting_title">Call Screen</string>
<string name="revelio_transfer_to_voicemail">"Sorry, but I couldn't get ahold of them. If there's anything else you'd like to let them know, go ahead and do so after the tone."</string>
<string name="revelio_try_to_reach">All right, hang on while I try to reach them.</string>

Saving Call Screen Audio for Automatically Screened Calls

Here are more strings relating to saving the audio from screen calls. Previously, you could only save the transcript.

<string name="conversation_history_dropdown_menu_full_transcript_link_text_with_audio">Transcript and audio</string>
<string name="conversation_history_dropdown_menu_full_transcript_link_text_without_audio">Transcript</string>
<string name="save_audio_error_cant_load_value">Unable to fetch current Save Call Screen audio value</string>
<string name="save_audio_error_cant_set_value">Unable to save Save Call Screen audio value</string>
<string name="low_confidence_revelio_summary_prefix">"(Audio wasn't clear) "</string>

Spam Preferences

Finally, these strings define some new spam preferences. Spam detection on the Google Phone app will detect altered numbers, private or hidden numbers, unknown numbers, and/or numbers that match Google’s spam database. It’s unclear if these preferences will let you tweak what kinds of numbers the automatic Call Screen feature works on, though.

<string name="possibly_faked_numbers_action_preference_description">Callers that may be spammers using an altered number</string>
<string name="possibly_faked_numbers_action_preference_key">possibly_faked_numbers_action_preference_key</string>
<string name="possibly_faked_numbers_action_preference_title">Possibly faked numbers</string>
<string name="private_or_hidden_action_preference_description">Callers hiding their caller ID</string>
<string name="private_or_hidden_action_preference_key">private_or_hidden_action_preference_key</string>
<string name="private_or_hidden_action_preference_title">Private or hidden</string>
<string name="unknown_call_settings_category_key">unknown_call_settings_category_key</string>
<string name="unknown_call_settings_category_preference_title">Unknown Call Settings</string>
<string name="spam_action_preference_description">"Numbers that match Google's spam database"</string>
<string name="spam_action_preference_key">spam_action_preference_key</string>
<string name="spam_action_preference_title">Spam</string>
<string name="screening_unknown_caller">Screening an unknown call</string>

This feature is not yet live on aPixel 2 XL or Pixel 4 running the latest Google Phone 42 beta app. We don’t know when Google will announce it, either. We’ll be trying to enable this new feature ahead of launch, though. If we’re successful, we’ll follow-up with another article.

You can download Google Phone v42 from the Google Play Store link below.

Download QR-Code

Phone

Developer: Google LLC

Price: Free

Thanks to PNF Software for providing us a license to use  JEB Decompiler , a professional-grade rever se engineering tool for Android applications.

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