1983年，深大电话公司成立，解开了深圳“电话不灵”的困局。各种电话设备陆续进口至深圳，市内固定电话安装的范围逐渐扩大，市话、长途、国际长途等自动化电话服务也逐步实现。

The establishment of Shenda Telephone Co. Ltd. (SDT) solved the telephone communication dilemma in 1983. A supply of telephone equipment was imported to Shenzhen, the scope of landline telephone installation gradually expanded, and automated telephone services such as local, toll and international tolls were progressively delivered.

1986年，深圳市物价局制定了市内电话初装费用的标准，规定普通居民的电话初装费用为1400元，根据深圳市统计年鉴，当年深圳职工人均工资收入为2452元。电话初装费相当于当年深圳人年均工资的57.1%！即便如此，深圳市民对拥有固话的热情还是十分高涨，深大电话公司营业厅里经常是人头攒动，热闹非凡。

According to the Shenzhen Statistical Yearbook, the initial installation cost of a local phone was fixed by the Price Control Administration of Shenzhen Municipality in 1986 at 1,400 yuan, equivalent to 57.1% of the average annual earnings of inhabitants of 2,452 yuan. Nonetheless, there was a buzz in the company’s business hall as locals grew fond of landlines.

1987年12月，经深大电话公司中英合营双方的友好协商以及市政府的批准后，深大电话公司从1988年1月1日开始，改变原来的合营性质，由中外合资经营企业改为中外合作企业，英方退出经营管理，公司全部资产归中方所有。

In December 1987, after friendly consultation between the two parties and the approval of the government, the withdrawal of the British side changed SDT from a Sino-foreign joint venture into a Sino-foreign cooperative enterprise from January 1, 1988, with the Chinese side owning all of the company’s assets.

改制后深大电话公司的业务突飞猛进。1988年1月10日，深圳经济特区的电话号码从5位数组合升到6位数组合。1991年，深圳市话用户总数突破10万大关，为深圳经济的蓬勃发展奠定了基石。

Growing by leaps and bounds after the restructuring, the fixed digit phone number within the Shenzhen Special Economic Zone expanded from five to six digits on January 10, 1988. Shenzhen had over 100,000 phone subscribers in total by 1991, which laid the cornerstone for the city’s rising prosperity.

然而，随着移动通讯电话和互联网的发展，固定电话的功能越来越弱化。2004年1月，深大公司与大东电报局二十年的合同期限到期，为保障深圳市民的电信服务，原深大公司经营的市内电话业务由广东省电信有限公司承接，纳入中国电信集团公司全网统一经营管理。

However, the role of landline telephones has diminished with the rise of mobile phones and the Internet. In January 2004, the 20-year contract between SDT and CW expired. Guangdong Telecom Co. Ltd. took over the local telephone business run by SDT, which was integrated into the unified operation and management of China Telecom Group’s entire network to ensure telecommunication services for locals.

在新的通讯革命风口下，深大电话公司逐渐成了历史名词，但作为内地第一家中外合资的电信运营企业，它在深圳乃至中国的电信建设和发展史，永远占据着不可替代的一席之地。

SDT became a historical term as a result of the new communication revolution, but being the first Sino-foreign joint venture telecom firm on the Chinese mainland, it will always hold an irreplaceable position in Shenzhen’s and even in China’s telecom construction and development history.

今日互动：您还记得通话时间最长的电话是哪一通吗？有哪一通电话让您印象深刻吗？欢迎留言分享，小i将从留言中选取幸运儿送出小礼物。

Today's topic: Do you remember the longest phone call you have ever made? Did any of the calls leave you deep impressions? Feel free to leave your comments and lucky people will receive gifts. 

来源：深圳市档案馆、i深圳

Source: Shenzhen Archives, iShenzhen

编译：深圳政府在线、Shenzhen Daily、GDToday

Transedited by: Shenzhen Government Online, Shenzhen Daily, GDToday