为什么换电话公司可以打711确认

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最近我换了电话公司,它们给我一个[1-800]号码,让我用来确认是否已经换上新公司了。这是个1-800号码,我记不住,记录纸也找不到了,灵机一动,还是用7-1-1比较方便,但是为什么用7-1-1呢?这还要从北美的电话号码系统讲起。

2-1-1 is a special abbreviated telephone number reserved in Canada and the United States as an easy-to-remember three-digit telephone number meant to provide quick information and referrals to health and human service organizations.

Atlanta was the first to introduce 2-1-1 service in 1997, as operated by the United Way. On July 2000, the FCC approved 2-1-1 for nation-wide use as a short number in the United States.

The CRTC approved the use of 2-1-1 throughout Canada on 9 August 2001. The first Canadian 2-1-1 service opened in Toronto on 13 June 2002.

3-1-1

The non-emergency telephone number 3-1-1 is a special telephone number in many communities in Canada and the United States that provides quick, easy-to-remember access to non-emergency municipal services or a Citizen Service Center. Dialing this number allows city residents (only in certain cities) to obtain important non-emergency services through a central, an all-purpose phone number quickly and effectively.

3-1-1 is intended in part to divert routine inquiries and non-urgent community concerns from the emergency 9-1-1 number. A promotional website for 3-1-1 in Los Angeles described the distinction as follows: “Burning building? Call 9-1-1. Burning Question? Call 3-1-1.”

4-1-1

For decades, most of the United States and Canada has used 4-1-1 as the telephone number for local directory assistance. One notable exception is the Pacific Northwest used 1-1-3 until the mid-1980s. In recent years, 4-1-1 has been used for long distance directory assistance in most areas in the United States. The traditional long distance directory number is 1-area code-555-1212. 411 is also used as a slang term meaning “information”.

5-1-1, initially designated for road weather information, is a transit and traffic information telephone hotline in some regions of the United States. Travelers can dial the three-digit number 511 on traditional landline telephones and many mobile phones. 在多伦多用Rogers电话服务,没有用。

6-1-1

很多电话公司和手机公司用来作服务号码。 For customers of some telephone companies in Canada and in the U.S., 611 is the abbreviated dialing telephone number used to report a problem with telephone service, or with a payphone. Many wireless phone providers also use 611 or *611 as a general customer service access number; most do not count calls to 611 against the minutes in subscribers’ calling plans, or assess any extra charges for 611 calls. A service exists (611 Roaming) which allows wireless phone customers to dial 611 regardless of the network they are connected to, and they will be connected to their own customer service department.

7-1-1

这个号码是用来给耳聋人士打电话的,而且不是紧急号码,又是每家电话公司必须开通,所以被用来确认当前的电话号码公司非常适宜。 In Canada and the U.S., the 711 telephone number is used for the Telecommunications Relay Service to translate from TDD for the deaf to speech, and vice versa. The relay service allows hearing-impaired people to converse with the hearing over the phone through an operator. 711 is one of eight N11 codes for abbreviated dialing in the North American Numbering Plan. In the U.S., every phone company is required to connect persons who dial 711 to a TRS call center from a working number, though this may not yet apply to VOIP telephony.

8-1-1 以前用作服务号码,类似611。在美国现在逐渐被转移成地下设施(通讯管道、电线、水管和天然气)的服务号码。 In Canada, in July 2005, the CRTC assigned 811 for non-urgent health teletriage services.

9-1-1 有紧急情况就打。

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