The service provides the information regarding the incoming SMS, voice or email messages. At the moment when the message comes, the telephone plays a signal. The system also allows setting filters, thus, allowing you to choose, which messages to inform you about and which to ignore.
Citel Technologies , A Voice over IP Phone company that provides VoIP Business Phone Systems. Its Main products include EXTender, PBXgateway, Upgraded Hardware Products, PBX platforms etc.