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The WCMS Core Equipment consists of an IP PABX software that is installed on a Server, configured for naval applications. This means that the software can handle PTT switch input, secure wireless networks and military system interfaces. With redundancy ensured via the use of an UPS, the server connects to switches which in turn provide the VoIP and Ethernet data to desk phones and Wireless Handhelds. A separate File Server ensures storage capacity and a Media Gateway enables the connection to external voice systems.

Wireless connectivity is achieved by Wi-Fi RF signals emitted from Wireless Access Points placed throughout the ship. The Wireless Access Points are controlled by the Wi-Fi Controller, which handles seamless transition from one Wireless Access Point to another when moving through the ship, and handles the Quality of Service (QoS). This ensures that VoIP packets are prioritised over ordinary Ethernet data.

The largest part of the WCS functionality is provided by the IP based Private Branch Exchange (PABX) software, which is installed on the Fanless Server. This is the backbone that provides end users the required functionality to eventually allow them to pick up the phone and dial a number.

The PABX is built with a Linux CentOS Operating System, using the open source Asterisk software.


Voice functionality

The WCS contains a variety of voice functionalities. These functionalities are provided by the IP based PABX, installed on the Fanless Servers. It can perform functions including call transfer, find me/follow me, Do Not Disturb, group/conference calling, call waiting, put through, addressed voice calls to WCS or Voice Terminal users, external calls, speed dial and caller-ID.

Wireless Handhelds come with the same functionality described above. Additionally, Wireless Handhelds will not be disconnected during handover from one Wireless Access Point to another and the handover is seamless.

Data Functionality

The Handsets contains data functionalities: a user is able to receive text messages. These text messages report system failures, i.e. damage control, propulsion and steering related failures. In case of emergency or calamity, text messages are provided to users that are required to take appropriate measures.

The text messages contain information related to location information or provide information on situational awareness.
The Polycom telephones are particularly easy to handle and each telephone has its own user interface. Switching between lines, call transfer and all other administrative functions, have proven to be user friendly – however, extensive manuals are available, if required.

Although the phone has its own web interface, the main configuration is done via the ADTEL/WCS management GUI. The phone GUI will normally only be used for analysing failure situations.