Shift workers can't search the GAL on phones
Operators on the shop floor get inbound calls from internal numbers but the iPhone shows 'Unknown caller'. The Outlook GAL exists, but mobile dialers don't see it natively.
Use case · Manufacturing
Contact sync for manufacturing
Shop floor operators, field engineers, and shift workers all need the same thing: a phone that knows who's calling. CYNC delivers the GAL to every device, on-premise, without MDM gymnastics.
Manufacturing-specific challenges
Field engineers travel without office Wi-Fi
Service techs visiting customer sites need contact details offline — the GAL on a phone only works if contacts are stored locally on the device.
Multi-site organizations have shared contact pools
Plants in different regions share engineering and procurement teams. Everyone needs to find everyone — fast, on the device they actually use.
Data sovereignty matters for industrial IP
OT/IT environments often require data to remain on-premise. Cloud-only contact sync vendors can't always satisfy plant-level compliance requirements.
How CYNC solves it
Caller ID on every shift phone
CYNC writes the entire Entra ID directory into each user's mailbox. iPhone and Android dialers use Exchange ActiveSync contacts for inbound caller ID — even when the phone is on plant Wi-Fi or LTE without a connection to corporate.
Offline-first contact directory
Once Exchange ActiveSync syncs contacts to a device, they live locally. Field engineers can search and call from their device contact app without an active VPN or office network.
On-premise Windows Service
CYNC runs as a Windows Service on a server you control — physical or virtual. Contact data flows directly from your server to Microsoft Graph. No third-party cloud touches your directory.
Multi-tenant fan-out for groups
MSPs and group IT departments managing multiple legal entities can run a single CYNC deployment, fan out to every tenant, and keep one operational dashboard.
Manufacturing FAQ
Does CYNC work with kiosk-style shop floor devices?
If the device runs Outlook Mobile or has an Exchange ActiveSync mail account, contacts sync automatically. CYNC writes contacts to the user's mailbox in Exchange Online — any client that connects to that mailbox sees them.
What about contractors and seasonal workers?
Configure source filters in CYNC to include or exclude specific groups. Many manufacturing customers exclude external contractors from the published GAL while still syncing to a separate contact set for internal staff. Targeting is fully configurable.
Can CYNC sync to multiple plant tenants?
Yes. Each tenant requires its own Entra ID app registration but a single CYNC installation can manage multiple tenants from one dashboard. Common pattern for groups with separate legal entities or M&A integration projects.
Does this require an MDM rollout?
No. CYNC writes contacts to mailboxes via Microsoft Graph. The contacts then sync to phones via the existing email account already provisioned via MDM, BYOD, or manual setup. No separate MDM profile, no app deployment.
What about industrial / OT compliance?
CYNC is on-premise — no contact data transits a third-party cloud. The certificate-based authentication means no client secrets stored on disk. Source code is signed. The audit trail lives in your local SQLite database. Designed for compliance-conscious environments.
How does pricing work for large workforces?
€0.29/user/month sliding down to €0.18/user/month at 5,000+ users. The first 10 users per tenant are free permanently. A typical 1,500-employee manufacturing site costs ~€350/month — far below the engineering hours of a DIY script.
Built by IT-BAER. Made for industry.
10 users free per tenant — pilot CYNC at one plant, roll out group-wide when ready.