Telephone Systems

Comtel is able to consult, design, and implement a communication solution that is perfect for your unique business. Our capabilities include supply and installation of telephone systems and peripheral items such as Voice Mail Systems, Headsets, Handsets and Wide-area Cordless Telephone systems.

  • Hosted voice solutions
  • Traditional PBX systems
  • SIP trunking
  • Key systems
  • Unified Communication
  • Phones and Clients



OpenStage handsets and devices

Optimum convenience and simple operation: Unify’ terminal devices offer the very highest levels of convenience, functionality and flexibility. Discover the diversity of our Phones & Clients.


OpenScape Business

OpenScape Business offers small and medium-sized enterprises everything they need for
their individual and diverse communication requirements, unified in a single flexible and
scalable solution. The OpenScape Business architecture allows use independently of the
existing telephony infrastructure – regardless of whether this is classic telephony, IP or
DECT. From powerful telephony to a feature-rich set Unified Communication (UC) solution,
OpenScape Business always provides enterprises with up to 500 subscribers, or 1000
subscribers in one network, with the right solution.


OpenScape Voice

OpenScape Voice V9 is the software-based enterprise voice application running as part of OpenScape UC Suite. It provides a rich set of enterprise voice features for medium to large size enterprises. It can be deployed as a simplex (single server) solution in “try and buy” scenarios, or as a carrier grade voice solution for the enterprise (duplex server nodes with 100% failover support). It is a SIP based voice application running on commercial servers supporting scaling from 350 to 1,000 users for a single server system (simplex). It is built from the ground up as a data center application that can work in a virtualized architecture. Virtualization is based on VMware hypervisor. OpenScape Voice can be delivered as a vApp (virtualized application) – a pre-configured, ready to run application on a Virtual Machine.



Circuit is everything your teams need to communicate in a single app. It’s voice, video, screen share, chat, and file sharing. It’s collaboration made simple.