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The BT Hub Phone is an optional handset that can be bought to work in conjunction with the BT Home Hub 1, 1.5, and 2.0. It calls using the BT Broadband Talk service, and may sit in a dock in the front of the Home Hub or be used on its own stand. It uses Hi-def sound technology when calls between Hub Phones are made.
Used to set up and control speech and data calls between Bluetooth devices. The protocol is based on the ITU-T standard Q.931, with the provisions of Annex D applied, making only the minimum changes necessary for Bluetooth. TCS is used by the intercom (ICP) and cordless telephony (CTP) profiles. The telephone control protocol specification is ...
Bluetooth devices intended for use in short-range personal area networks operate from 2.4 to 2.4835 GHz. To reduce interference with other protocols that use the 2.45 GHz band, the Bluetooth protocol divides the band into 80 channels (numbered from 0 to 79, each 1 MHz wide) and changes channels up to 1600 times per second.
It could be used for streaming a recorded video from a PC media center to a portable player, or a live video from a digital video camera to a TV. Support for the H.263 baseline is mandatory. The MPEG-4 Visual Simple Profile, and H.263 profiles 3 and 8 are optionally supported, and covered in the specification.1
For example, in the UK, users can order a 7:30 am alarm call from a BT telephone exchange by dialing: 55 0730#. [8] In the Americas and a number of other countries, most dials and, later, keypads also bear letters according to the following system: A standard telephone keypad
Marconi System X originally developed by the British Post Office (later BT), GEC, Plessey and STC, is a type of digital exchange used by BT Group in the UK public telephone network. A digital exchange (Nortel DMS-100) used by an operator to offer local and long-distance services in France. Each switch typically serves 10,000–100,000 ...
TV cams enable people to make video calls using video calling services, like Skype on their TV, without using a PC connection. TV cams are specially designed video cameras that feed images in real time to another TV camera or other compatible computing devices like smartphones, tablets and computers.
Call transfer and call hold; Dialing using name/ID (differs from speed dial in that no number is stored on the client) Locally stored and network-based directories; Conference calling and multiparty calls; Call park; Call blocking feature. Support for multiple VoIP accounts – the phone may register with more than one VoIP server/provider.