
SIP Phones
Optimally tuned hardware for your CNT Call Manager
Unlimited Selection of Devices
CNT Call Manager supports a wide range of devices – from the optimally tailored CNT Desk Series to SIP-compatible devices from various manufacturers. This selection offers flexibility, complemented by headsets for greater comfort in everyday work.
CNT Desk Series
The CNT Desk Series offers a selection of high-quality, proven devices developed in collaboration with Snom, a leading pioneer in the field of SIP phones.
These models are specifically designed for businesses that rely on reliable technology and user-friendly solutions. They combine cutting-edge features with robust construction, providing crystal-clear voice quality, intuitive operation, and seamless integration into CNT Call Manager – the ideal choice for professional requirements.
Extensive whitelist of many manufacturers
The whitelist of CNT Call Manager enables the integration of SIP-compatible devices from numerous manufacturers. Companies benefit from maximum freedom in selecting their hardware and secure their investments by incorporating existing devices. All devices on the whitelist are continuously tested with the latest firmware versions to ensure smooth integration.
Snom is a German manufacturer and pioneer in the SIP phone market. CNT is a Snom Advanced Service Provider and offers particularly deep integration for Snom products.
Gigaset, the European market leader in DECT technology, offers a powerful multi-cell solution specifically designed for professional enterprise wireless networks.
VTech, the global leader in consumer DECT, offers a selection of secure and easy-to-manage SIP phones specifically designed for hotels.
Yealink is one of the world's leading manufacturers of SIP phones, known for its top-notch quality, appealing design, and diverse range of models.
Poly is globally recognized for high-quality audio and video conferencing solutions, offering a versatile selection of SIP phones and acquired headset specialist Plantronics in 2018.
Grandstream has been an established manufacturer since 2002, providing innovative and affordable SIP phones as well as specialized SIP gateways for the integration of analog devices.
Mitel has focused on SIP technology since 2001 and offers a wide range of SIP devices. With research and development in Germany, the company combines innovation with the highest quality.
Jabra offers a comprehensive range of quality headsets for professional use in businesses and call centers.
Recommended Headsets
CNT Call Manager offers professional headsets, both wireless and wired, that meet the latest standards. Wireless headsets provide freedom of movement, while wired models offer stable connections. All headsets are optimized for clear voice transmission, reduce background noise, and integrate seamlessly.

Auto-provisioning
The CNT Desk Series and all devices on the whitelist support auto-provisioning. This feature in the CNT Call Manager allows administrators to centrally manage SIP phones and endpoints. New devices can be quickly integrated, global configuration changes implemented simultaneously, and firmware updates executed centrally – for efficient management.
Local Routing
CM Local Routing, a special functionality of the CNT Call Manager, enables SIP phones to route the data stream of local calls directly within the internal network instead of through external servers. This optimizes network management, reduces latency, and conserves bandwidth as the data remains local.


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