Call Manager – The only true cloud PBX with full UCC services

Users can personalize the CM App interface by rearranging key functions, simplifying views for mobile use, or hiding unused modules—making it easy to match features with daily work needs.

IT admins can deploy preconfigured layouts, modules, and design settings across the organization or for specific user groups. These defaults can be locked or made user-adjustable, depending on the intended governance model.

Key functions such as calling, chat, conferencing, or presence can be prioritized based on usage context. This results in a streamlined, task-focused interface that adapts to evolving work conditions.

Whether for call centers, project teams, or mobile units, the CM App’s UI architecture is designed to perform across industries and user roles – without requiring custom development.

Documentation is linked to specific interface areas, providing users with targeted guidance on the module they’re currently using – without needing to search through manuals or PDFs.

Many entries include clickable UI elements that open the relevant settings directly from the documentation – streamlining configuration and improving workflow efficiency.

Documentation is centrally maintained and continuously updated. Changes in the UI or new features are reflected immediately – no customer-side update required.

The structured documentation reduces helpdesk inquiries and supports end-user independence during onboarding and everyday use – relieving internal support resources.

All CM App functions can be operated entirely via keyboard. Focus navigation is logically structured, visually highlighted, and supports complete navigation without a mouse or touch input.

All relevant UI elements are semantically labeled and readable by screen readers – ensuring accessibility for users who are blind or visually impaired on both desktop and mobile devices.

The UI meets WCAG AA contrast requirements. Color schemes, typography, and status indicators are designed for clear visibility under low-vision conditions.

The CM App supports high zoom levels and scalable UI components without content clipping or feature loss – ensuring full usability even with enlarged display settings.

The whitelist includes devices from leading vendors such as Snom, Gigaset, VTech, Yealink, Poly, Grandstream, and other proven brands in professional environments.

All listed devices undergo thorough testing for feature support, stability, and compatibility – including advanced functions like BLF, XML menus, and device management.

Functionality is continually tested against the latest firmware versions to ensure seamless support for new features and vendor updates.

Existing hardware that matches the whitelist can be reused without issue. This facilitates cost-efficient migrations and reduces the need for replacement when switching systems.

Device settings like user assignment, key mapping, codecs, or display configurations can be centrally defined and deployed over the network—no need to access devices individually.

New phones can be automatically provisioned using preconfigured parameters. Devices pull their configuration via defined provisioning URLs – ideal for bulk rollouts and structured migrations.

Configuration changes can be applied across multiple devices simultaneously – saving time, simplifying maintenance, and reducing the risk of errors.

Firmware updates can be centrally deployed and validated for compatibility. This ensures that all devices remain up to date – secure, stable, and fully vendor-compliant.

For internal calls between local devices, RTP streams are exchanged directly – no detour through the central Call Manager or external systems.

Local routing minimizes voice setup delays and enhances audio quality—especially important in time-sensitive communications.

By keeping voice traffic off external connections, data loads on gateways and VPN tunnels are significantly reduced.

Core servers and trunk resources remain unaffected by internal media flows, improving overall scalability and system stability.