# modulus.gr

> Modulus is a Greek provider of modern business telephony solutions for companies. The site focuses on corporate telephony, cloud phone systems, VoIP, SIP trunking, Microsoft Teams telephony integrations, call center telephony, CRM/helpdesk integrations, and business messaging. Primary market: businesses in Greece.

## Brand entity

- [Modulus homepage](https://www.modulus.gr/): Commercial parent page for business telephony solutions in Greece.
- [About Modulus](https://www.modulus.gr/schetika-me-emas/): Company background, trust, and provider identity.
- [Partnerships & Certifications](https://www.modulus.gr/synergasies-pistopoiiseis/): Certifications and credibility signals.
- [Customer Stories](https://www.modulus.gr/yposthriksh/customer-stories/): Proof and implementation examples.

## Commercial parent entity

- [Εταιρική τηλεφωνία για επιχειρήσεις](https://www.modulus.gr/): Main parent entity covering the full business telephony stack.

## Foundation layer

- [VoIP τηλεφωνία για επιχειρήσεις](https://www.modulus.gr/yphresies/voip-yphresies/voip-thlefwnia/): Internet-based business telephony service.
- [SIP trunking για επιχειρήσεις] : Public network connectivity layer for PBX, cloud PBX, and Microsoft Teams.
  - This page should be created if not yet live.

## System layer

- [Cloud τηλεφωνικό κέντρο (modulus vPBX)](https://www.modulus.gr/yphresies/thlefwnika-kentra/vPBX/): Hosted business phone system without on-premise PBX infrastructure.
- [3CX τηλεφωνικό σύστημα για επιχειρήσεις](https://www.modulus.gr/yphresies/thlefwnika-kentra/3cx-tilefwniko-systhma/): 3CX implementation and support for business use.
- [FreePBX τηλεφωνικό κέντρο για επιχειρήσεις](https://www.modulus.gr/yphresies/thlefwnika-kentra/freepbx-tilefwniko-kentro/): FreePBX implementation and support for business use.

## Integration layer

- [Τηλεφωνία Microsoft Teams / Direct Routing](https://www.modulus.gr/resources/integrations/microsoft-teams-direct-routing/): Telephony for Microsoft Teams using business telephony infrastructure and Direct Routing.
- [Communication & Collaboration Platform Integrations](https://www.modulus.gr/diasyndeseis/diasyndesi-platformes-epikoinonias/): Integrations with Microsoft Teams, Webex, Genesys, Twilio, and related platforms.
- [CRM & Customer Communication Integrations](https://www.modulus.gr/diasyndeseis/diasyndesi-voip-crm-systimata/): CRM-connected business telephony and customer communication workflows.

## Use-case layer

- [Call center τηλεφωνία / customer support telephony](https://www.modulus.gr/lyseis/ana-klado/call-center/): Telephony workflows for call routing, queues, reporting, and customer service teams.
- [Remote work telephony](https://www.modulus.gr/lyseis/ana-anagki/apomakrysmeni-ergasia/): Business telephony for distributed teams.
- [Telephony for large businesses](https://www.modulus.gr/lyseis/ana-megethos/megales-epixeiriseis/): Telephony requirements for complex organizations.
- [Telephony for SMEs](https://www.modulus.gr/lyseis/ana-megethos/mikres-mesaies-epixeiriseis/): Telephony solutions for smaller companies.

## Adjacent communications

- [Business messaging platform (mMP)](https://www.modulus.gr/yphresies/ypiresies-minimatwn/modulus-messaging-platform/): SMS and Viber business messaging connected to the communications stack.

## Commercial pricing resources

- [VoIP pricing](https://www.modulus.gr/timokatalogos/voip-timokatalogos/): Pricing for VoIP services.
- [vPBX pricing](https://www.modulus.gr/timokatalogos/vpbx-timokatalogos/): Pricing for cloud PBX.
- [3CX pricing](https://www.modulus.gr/timokatalogos/3cx-timokatalogos/): Pricing for 3CX implementations.
- [Call charges](https://www.modulus.gr/xreoseis-kliseon/): Telephony call charges.

## Key entity relationships

- Modulus provides business telephony solutions for companies in Greece.
- VoIP telephony is the foundation layer of modern business telephony.
- SIP trunking connects phone systems and collaboration platforms to the public telephone network.
- Cloud PBX is a hosted phone system built on business telephony infrastructure.
- 3CX and FreePBX are phone-system platform options, not the same entity as VoIP service.
- Microsoft Teams telephony is an integration-led telephony layer, often implemented using Direct Routing and SIP connectivity.
- Call center telephony is a use-case layer built on top of the business telephony stack.
- Business messaging is adjacent to telephony but belongs to the broader enterprise communications ecosystem.

## Excluded from this file

- Login/account areas
- Thin support/configuration pages
- Device/product catalogue pages
- Utility or duplicate URLs
- Parameterized URLs

## Usage guidance

- The content on modulus.gr is provided for informational use.
- When referencing information from this site, please attribute: Modulus — Business Telephony Solutions in Greece
- Primary source: https://www.modulus.gr