// Open Source VoIP Phone System

    VoIP Telephony

    Professional cloud telephony based on Linphone — open source, secure, and GDPR-compliant, hosted in Germany.

    LinphonePowered by Linphone — Open Source VoIP since 2001

    Fixed Price

    4,99 € / User / month

    Professional telephony doesn't have to be expensive. All features included, no hidden costs.

    // advantages

    Why OPaaS VoIP?

    ERP Integration

    Seamless connection with Odoo or other ERP systems. Calls are automatically logged, contacts synced, and customer info displayed on incoming calls.

    Anywhere & Any Device

    Linphone is available for iOS, Android, Windows, macOS, and Linux. Make calls from anywhere — in the office, on the go, or from home.

    Open Source & GDPR-Compliant

    Based on Linphone — the trusted open-source VoIP project since 2001. End-to-end encryption and hosting on German servers guarantee maximum data sovereignty.

    // features

    Powerful Features

    Professional communication with full functionality — everything included in the fixed price.

    FeatureIncluded
    HD telephony with Opus & G.729 codecs
    Video calls up to 1080p
    Video conferences with up to 50 participants
    Screen sharing in meetings
    Call recording (audio & video)
    Bluetooth headset support
    Individual & group chats with file sharing
    End-to-end encryption (TLS/SRTP)
    Single sign-on (SSO) via OpenID Connect
    Seamless network switching (WiFi ↔ cellular)
    SIP interoperability & Odoo CRM integration
    Based on open-source technology
    Echo & noise cancellation
    Adaptive bitrate management
    Call forwarding (blind & attended)
    Conference moderation & waiting rooms
    Presence & availability status
    Remote provisioning & MDM support
    SRTP & SRTP-DTLS media encryption
    IPv6 support
    Push notifications (iOS & Android)
    Automatic proxy detection
    // platforms

    Available Everywhere

    Whether at your desk or on the go — your telephony works on any device.

    Desktop — Video conference with screen sharing

    Desktop — Video conference with screen sharing

    Call

    Call

    Chat (E2EE)

    Chat (E2EE)

    Comprehensive Support Included

    Extended support, maintenance, and proactive monitoring of your VoIP infrastructure are included in our OPaaS 360° package — your all-in-one IT solution.

    // faq

    Frequently Asked Questions

    The most important answers at a glance.

    // get_started

    Ready for Modern Telephony?

    Contact us for a free consultation. We'll show you how easy the switch to VoIP is.