Is Send to Call OS safe to install?

What data it declares

The developer declares that it collects these kinds of data:

• Personally identifiable information such as name, address, email address or age
• Authentication information such as passwords, credentials or PIN codes

The developer also certifies that your data is not sold to third parties outside approved uses, not used for purposes unrelated to the extension's core function, and not used to decide creditworthiness or lending.

The listing links to a privacy policy.

This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

What Chrome asks you to allow

When you add it, Chrome asks you to allow it to:

• Read and change all your data on all websites
• Display notifications
• Block content on any page

Derived from the manifest by Chrome's documented rules; the dialog's exact wording depends on your Chrome version and language. Chrome asks again if an update requests more.

What it can reach

Every site you visit. This extension can read and change the content of any page you open. What access to every site means

Worth knowing

• Block or redirect requests by rules it declares in advance declarativeNetRequest

Routine for an extension

• Schedule work to run later alarms
• Add items to the right-click menu contextMenus
• Show you notifications notifications
• Run work in a hidden page offscreen
• Store data in your browser storage
• Store data in your browser without the usual size limit unlimitedStorage

Pages it runs its code on

It runs its own code on every page you open: the manifest declares a content script for all sites.

• https://app.zoominfo.com/* only app.zoominfo.com
• https://*.zoominfo.com/* zoominfo.com and all its subdomains
• https://call-os.com/* only call-os.com

A content script is code the extension injects into pages matching these patterns. On those pages it can read and change what you see, whether or not a host permission is listed above.

Sites that can connect to it

Web pages matching these patterns can open a messaging channel to it: 3 site patterns.

• https://app.call-os.com/* only app.call-os.com
• http://localhost/* only localhost
• http://127.0.0.1/* only 127.0.0.1

Declared as externally connectable in the manifest: a page on these sites can exchange messages with the extension, for example to tell it you have signed in. It does not give the page access to your browser.

How usual this is for its category

In Productivity · Workflow, 19% of extensions ask for access to every site. This one: Access to every site.

The typical extension there declares 3 browser permissions; this one declares 7 browser permissions.

Counted over the live extensions of the same category after our latest full pass of the store. A share is context, not a verdict: what is normal depends on what the extension is for.

Who uses it and how it is kept up

67 users

• Last updated in the store 28 days ago, on 2026-10-05.
• We have seen 4 new versions in the last 90 days.

What the store shows

The store shows none of its badges on this listing. Most listings carry none.

Has it asked for more over time?

This is the question a permission list on its own cannot answer. An extension that shipped narrow and widened later is a different proposition from one that always asked for the same thing.

1. 2026-10-05Asked for more permissions (17, was 16)
2. 2026-09-19Asked for more permissions (16, was 15)

Versions we have seen

1. 2026-10-06Version 1.3.2
2. 2026-10-05Version 1.3.0 · Asked for more permissions (17, was 16)
3. 2026-09-19Version 1.2.3 · Asked for more permissions (16, was 15)
4. 2026-09-18Version 1.1.0

Who publishes it

Outbound Intelligence Systems. This listing has been in the store since 2026-06-09 and was last updated on 2026-10-05.

Similar extensions that ask for less

Listings close to this one in what they say they do, which declare less reach. Less reach is not a verdict on either: compare what each needs for the job.

1. EnVimassa No site access · 4 permissions 95 users ★ 4.7
2. RoboRep Dialer No site access · 9 permissions 4 users ★ 5.0
3. CallSheet Access to specific sites only · 1 site pattern 2 users (last published figure)

How to check or remove it in Chrome

1. Type chrome://extensions in the address bar and find the extension in the list.
2. Open its details. The site access setting shows where it can run; set it to run only on click and it reaches a page only after you press its icon.
3. To uninstall it, choose Remove on the same page.

Questions people ask

What can Send to Call OS access?

Every site you visit. This extension can read and change the content of any page you open. It declares 7 browser permissions.

What data does Send to Call OS collect?

The developer declares that it collects these kinds of data: Personally identifiable information, Authentication information. This is the developer's own declaration in the Chrome Web Store. We cannot check it against what the extension does.

Has Send to Call OS asked for more permissions over time?

Its permissions changed 2 times while we watched, most recently on 2026-10-05.

Does Send to Call OS publish a privacy policy?

Yes, the store listing links to a privacy policy.