For Microsoft 365 · iOS & Android

Your company directory, in every employee's phone.

Calliente syncs Microsoft 365 (Entra ID) contacts into the native Contacts app on iPhone and Android. Every internal call is identified, every detail stays up to date, and no contact ever goes through our servers.

  • No contacts stored on our side
  • Intune deployment
  • Consent revocable anytime
9:41

Contacts

🔍
Syncing your directory…0

Calliente directory

  • CMClaire MartinChief Financial Officer · HQ · Lyon
  • HBHugo BernardIT Manager · Paris
  • IMInès MoreauKey Account Manager · Nantes
  • LPLucas PetitSite Manager · Bordeaux
  • SLSarah LeroyHR · HQ · Lyon

Incoming call · mobile

CM

Claire Martin

Chief Financial Officer

HQ · Lyon

Calliente directory
✕Decline✆Accept

Built on the tools your IT team already runs

Microsoft Entra IDMicrosoft GraphMicrosoft IntuneWorkspace ONEAndroid EnterpriseApple Business ManagerMicrosoft Entra IDMicrosoft GraphMicrosoft IntuneWorkspace ONEAndroid EnterpriseApple Business Manager

The problem

Unknown number… it was your CFO.

Microsoft 365 does not sync the company directory into phone contacts. The result: missed calls, numbers typed by hand, CSV files that float around and are never up to date.

Today

  • Internal calls show up as unknown
  • CSV exports and Excel lists everywhere
  • Joiners and leavers never reflected
  • Work contacts backed up to personal iCloud

With Calliente

  • Name, title and site on every call
  • Entra ID directory in the native Contacts app
  • Automatic daily updates
  • Contacts protected from export (Secure Call ID)

Under the hood

Your contacts go from Microsoft 365 to the phone. Period.

The app reads the directory straight from Microsoft Graph, with the user's own identity. Our servers only handle licensing and settings: they never see a single contact.

Microsoft Entra ID

Your directory

Microsoft Graph

Delegated, encrypted calls

Native contacts

iPhone · Android

  • Contact data path
  • Licensing and settings, no contacts

Calliente servers

Licensing and settings only

0 contacts stored

Setup

Live today. Not in three months.

No server to install, no PowerShell script, no CSV export, no admin rights on the phones.

Microsoft

Calliente

calliente.app

Permissions requested

  • ›Sign in and read your profile
  • ›Read the organization directory (users and groups)

You can remove this consent at any time.

✕Accept👆

Cybersecurity

Built to pass your CISO's review.

Calliente was designed to answer a security lead's questions before they ask them: where the data goes, who can access it, how to switch it off.

Group filtering

You decide which Entra ID groups are visible on which phones.

Android Work Profile

Android Enterprise ready: work contacts stay in the work profile.

GDPR by design

No copy of the directory, no contact database to declare: the data stays in your Microsoft 365.

The CISO checklist

  • Where are contacts stored? In Microsoft 365 and on the phone. Nowhere else.
  • Who can access them? The signed-in user, with their own Microsoft 365 rights.
  • Can we switch it all off? Yes, by removing consent in Entra ID.
  • Can contacts leak out? Secure Call ID blocks export and personal iCloud.

Admin portal

IT stays in control, without spending its days on it.

Every option is managed from the Calliente portal: synced groups, contact protection, licences. One change applies to the whole fleet.

portal.calliente.app

Active licences

1,250

Synced devices

1,180

Synced groups

  • ✓All employees
  • ✓Sales
  • ✓Field teams
  • Contractors

Protection

  • Secure Call ID
  • Block contact export (iOS)
  • Daily sync

Pricing

Less than a coffee per employee. Per year.

Billed annually per user. 30-day free trial, no credit card.

Standard

For small teams.

€4/ user / year

  • Directory sync
  • Daily updates
  • Email and chat support
Start the trial
Most popular

Business

For mid-size and enterprise.

€6/ user / year

  • Everything in Standard
  • Group filtering
  • Block contact export (iOS)
Start the trial

Questions we get asked

Can Microsoft 365 natively sync the Global Address List (GAL) to iPhone or Android contacts?+

No. Microsoft 365 does not natively publish the GAL or Entra ID directory into the native Contacts app on iOS or Android. Calliente fills this gap by syncing Entra ID contacts to the device's native address book, with caller ID.

Does Calliente store our company contacts?+

No. Calliente performs delegated Microsoft Graph API calls from the device and does not store or process customer contacts on its servers. The architecture is GDPR-ready.

How is Calliente deployed?+

A Microsoft 365 administrator approves the Calliente app in Microsoft Entra ID (one-click admin consent), then the app is deployed with Microsoft Intune or VMware Workspace ONE, or installed from the App Store and Google Play for a pilot. Android Enterprise Work Profile is supported, and no server, PowerShell script, CSV export or admin rights on the device are needed: a pilot takes a few minutes.

Which permissions does Calliente request?+

Only the permissions needed to read the Microsoft 365 directory. They are granted through an explicit admin consent in Microsoft Entra ID and can be revoked at any time from Entra ID, which cuts Calliente off from the directory.

What happens when an employee joins or leaves the company?+

Synchronization is automatic and runs daily: changes made in Microsoft Entra ID (new hires, departures, new job titles or phone numbers) are reflected on the phones with no action from users or IT.

Can we choose which contacts are synchronized?+

Yes. With the Business plan, administrators pick which Microsoft Entra ID groups are synchronized, so each population only sees the contacts that matter to them.

What is Secure Call ID?+

Secure Call ID identifies incoming calls from colleagues using the company directory while protecting synced contacts from export and from personal iCloud backups. On iOS, the Business plan can also block contact export entirely.

How much does Calliente cost?+

Standard costs €4 per user per year and Business €6 per user per year, billed annually. Multi-year commitments get 10% off for 2 years and 20% off for 3 years. A 30-day free trial is available on your own Microsoft 365 tenant, with no credit card.

Does Calliente work on personal phones (BYOD)?+

Yes. Calliente runs on iOS and Android, supports Android Enterprise Work Profile so work contacts stay in the work profile, and works with Apple Business Manager and BYOD policies.

Is Calliente GDPR compliant?+

Calliente is built to minimize data processing: company contacts are read from Microsoft 365 by the app on the device and are never stored or processed on Calliente servers. There is no copy of your directory to secure, declare or purge.

Your people finally know who's calling.

Activate the trial on your Microsoft 365 tenant and try Calliente on a real phone today.

Sync Microsoft 365 contacts to iPhone & Android | Calliente