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In the United Kingdom
The bell is used in the local neighbourhood of the Parliament to signal a division is occurring and that members in the Commons or in the House of Lords have eight minutes to get to the appropriate Division Lobby to vote for or against the resolution. The call for a Division is also displayed on the Annunciator screens throughout the Parliamentary buildings.
Because of the time allowance MPs may, in fact, be in nearby offices, restaurants, pubs or shops, some of which will have their own division bells connected to those within the confines of the Parliament's buildings, others will use a system of pagers co-ordinated by the Whip's office of each party.
The headquarters of the major parties are all within the reach of the division bell and this area roughly defines the geographical limits of the Westminster Bubble.
The BBC Antiques Roadshow from The Banqueting House in Whitehall featured the original Division Bell Transmitter (serial number 1) from The House of Commons. Their expert Paul Atterbury, with the help of former Speaker of The House Baroness Betty Boothroyd, demonstrated the apparatus in use with one of the original Division Bells. The Show was first seen in October 2007, where the transmitter was valued at £15,000.
Three Division Bell Transmitters were made at the end of the 19th century by The GPO at the request of The Government. They were numbered 1, 2 and 3. Two were destroyed by a bomb in 1941 and replaced with copies bearing the numbers 4 and 5. Number 5 transmitter exists, but the whereabouts of number 4 is not known.
Both State and Federal Parliament buildings use electronic division bells. In states with bicameral parliaments, and in the federal Parliament, red and green lights near the division bells flash to indicate which house is being called. Queensland and the Territories, which have unicameral parliaments, do not require the red light which indicates the Upper House. The bells are rung at the beginning of a sitting, because a member has challenged a vote (called a division), or because there are not enough members in the chamber to constitute quorum.
In the NSW Parliament, the division bell is electronic and rings differently for divisions in the Assembly and the Council.
The electronic bell of the House of Commons sounds to call members of the House for a sitting, a vote, or to announce the lack of a quorum. In the case of a vote, it is referred to as the division bell.