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Another problem with the dial version of the Trimphone was its light weight, 0.8 kg (1.8 lb) compared with 1.4 kg (3.1 lb) for the 700-type and 2.6 kg (5.7 lb) for the 300-type telephone. This led to the complaint that on slippery surfaces the telephone turned and slid whilst dialling.
With each BT Home Hub released up to 2.0, a new phone model was made to accompany it: BT Home Hub 1.0: was supplied with the BT Hub Phone 1010; BT Home Hub 1.5: was supplied with the BT Hub Phone 1020 (The only difference between the 1010 and the 1020 was the lack of the colour screen and supporting features on the 1020.)
Rabbit was a British location-specific telephone service backed by Hutchison, which later created the Orange GSM mobile network, followed by 3.The Rabbit network was the best-known of four such services introduced in the 1980s, the others being BT Phonepoint, Mercury Callpoint and Zonephone.
The RJ11 female port provided on the filter case simply connects the DSL router directly to the phone line (most DSL filters have a socket marked DSL or ADSL that just connects the DSL line pair directly through to the incoming phone line pair via the BT plug, without any filtering or processing of any kind).
BT Fusion was an example of one type of telecommunication convergence. [citation needed] From the base station, at-home calls were connected to the phone network using an ADSL broadband connection; only those with BT Broadband connections were eligible for the service. Voice over IP protocols were used to transmit the call, but this was ...
A typical volume of Bell System Practices from the 1970s. The Bell System Practices (BSPs) is a compilation of technical publications which describes the best methods of engineering, constructing, installing, and maintaining the telephone plant of the Bell System under direction of AT&T and Bell Telephone Laboratories. [1]
A telephone magneto is a hand-cranked electrical generator that uses permanent magnets to produce alternating current from a rotating armature. In early telegraphy , magnetos were used to power instruments, while in telephony they were used to generate electrical current to drive electromechanical ringers in telephone sets and activate signals ...
Manual service is telephone service in which a human telephone operator routes calls as instructed by a subscriber with a telephone set that does not have a dial. Dial service is when an exchange routes calls by interpreting subscriber-dialed digits. A telephone switch is the switching equipment of an exchange.