Triple Zero (000) is the primary national emergency number in Australia. The Emergency Call Service is operated by Telstra a condition of its telecommunications licence, and is intended only for use in life-threatening or time-critical emergencies. Other emergency numbers in Australia are 112 for GSM mobile and satellite phones, which is answered by a Triple Zero (000) operator and 106 for TDD textphones. Triple Zero (000) was also the emergency number in Denmark and Finland until the introduction of the 112 number in 1993.

For calls to the State Emergency Service the Australia wide number 132 500 can be used (except for in the Northern Territory). This number should only be used for non life threatening situations.

Prior to 1969, Australia did not have a national number for emergency services; the police, fire and ambulance services possessed many phone numbers, one for each local unit. In 1961, the office of the Postmaster General (PMG) introduced the Triple Zero (000) number in major population centres and near the end of the 1980s extended its coverage to nationwide. The number Triple Zero (000) was chosen for several reasons: technically, it suited the dialling system for the most remote automatic exchanges, particularly outback Queensland. These communities used the digit 0 to select an automatic trunk line to a centre. In the most remote communities, two 0s had to be used to reach a main centre; thus dialling 0+0, plus another 0 would call (at least) an operator. Zero is closest to the finger stall on Australian rotary dial phones, so it was easy to dial in darkness.

A team comprises a group of people or animals linked in a common purpose. Teams are especially appropriate for conducting tasks that are high in complexity and have many interdependent subtasks.

A group in itself does not necessarily constitute a team. Teams normally have members with complementary skills and generate synergy through a coordinated effort which allows each member to maximize his/her strengths and minimize his/her weaknesses. Team members need to learn how to help one another, help other team members realize their true potential, and create an environment that allows everyone to go beyond their limitations.

Thus teams of game players can form (and re-form) to practise their craft. Transport logistics executives can select teams of horses, dogs or oxen for the purpose of conveying goods.

Theorists in business in the late 20th century popularised the concept of constructing teams. Differing opinions exist on the efficacy of this new management fad. Some see "team" as a four-letter word: overused and under-useful. Others see it as a panacea that finally realizes the human relations movement's desire to integrate what that movement perceives as best for workers and as best for managers. Still others believe in the effectiveness of teams, but also see them as dangerous because of the potential for exploiting workers — in that team effectiveness can rely on peer pressure and peer surveillance.