- 1882 The
First Telephone exchange open in Bombay, Calcutta and Madras.
- 1986 MTNL
inducted first Digital Exchange in India
- 1988 Introduced
Phone plus services like call waiting, call forwarding etc.
- 1911 Establishment
of Delhi telephones system with manual exchange
- 1926 Opening
if 1st automatic exchange (Lothian exchange)
- 1937 Opening
of Connaught Place exchange.
- 1945 First
Manual Trunk exchange opened.
- 1950 Opening
of Cantt exchange
- 1953 Tiz
Hazari Exchange (Lothian exchange ceased working) commissioned.
- 1955 Secretariat
exchange commissioned
- 1958 Karol
Bagh exchange (SXS) commissioned.
- 1961 Jor
Bagh exchange (SXS) commissioned.
- 1961 Shahadara
exchange (SXS) commissioned.
- 1962 Opening
of First STC service to Agra.
- 1963 Delhi
Gate (27) exchange commissioned.
- 1964 Delhi
telephone crosses 50,000 lines.
- 1966 Opening
of exchanges at Nangloi, Narela, Najafgarh, Bahadurgarh and
Ballabgarh.
- 1967 Rajpath
(38) exchange commissioned
- 1968 1st
X-Bar exchange (KB58) commissioned. X-Bar exchange (JB62)
commissioned
- 1969 Trunk
automatic exchange (TAX) commissioned
- 1970 Okhla
X-Bar exchange commissioned.
- 1972 Opening
of Idgah-I (51) Strowger exchange.
- 1972 X-Bar
(31) Janpath-I exchange commissioned. Delhi telephones crosses 1
lac lines.
- 1973 Opening
of X-Bar (67) Chanakya Puri exchange.
- 1975 X-Bar
Janpath-IV (34) exchange commissioned. X-Bar Shahdara East (20)
exchange commissioned.
- 1976 Shakti
Nagar (74) exchange commissioned. Idgah-II (52) X-Bar exchange
inaugurated by Mr. Fakhuriddin Ali Ahmed, President of India, on
28.8.76 and presided over by Mr S.D. Sharma (Minister of
Communications). Opening of Shahdara East (20) Extension-I, X-Bar
exchange on 31.8.76. It was inaugurated by Mr H.K.L Bhagat
(Minister of State for Works & Housing) and Mr S.D. Sharma
(Minister of Communications). Opening of Hauz Khas (65) X-Bar
exchange on 18.10.76. It was inaugurated by Mr S.D. Sharma
(Minister of Communications) and presided over by Mr Radha Raman
(Chief Executive Councillor, Delhi).
- 1977 Opening
of STD Service to Indore and Ambala on 5.10.77 by Mr Brij Lal
Verma (Minister of Communications).
- 1978 Opening
of Rajouri Garden-I (59) X-Bar exchange in Feb 78 Opening of Hauz
Khas -II (66) X-Bar exchange on 15.2.78, by Mr Brij Lal Verma
(Minister of Communications). Opening of Janpath-V (35) X-Bar
exchange. Opening of Nehru Place (68) Strowger exchange on 4.11.78
by Mr Brij Lal Verma (Minister of Communications) and presided
over by Mr R.K. Gupta (Mayor of Delhi).
- 1986 Creation
of Mahanagar Telephones Nigam Limited
- 1986 First
digital exchange world technology brought to India
- 1987 Largle
Scale introduction of push button telephone made dialling easier.
- 1988 Phone
Plus services multiplied benefits to telephone users.
- 1992 Voice
Mail Service Introduced
- 1995 Internet
Introduced in India starting with Laxmi Nagar, Delhi 15 August
1995.
- 1996 ISDN
services were launched.
- 1996 ISDN
services introduced
- 1997 Wireless
in Local loop introduced
- 1997 WLL
service was launched
- 1999 Internet
services introduced.
- 1999 Launch
of Internet services
- 2000 Millennium
Telecom Limited, a wholly owned subsidary of MTNL is born
- 2000 Millennium
Telecom Ltd, a wholly owned subsidiary of MTNL is born to lay
international submarine OF cable.
- 2001 Launched
GSM Cellular Mobile service under the brand name Dolphin Launched
WLL Mobile services under the brand name Garuda. The company
listed at New York stock exchange(NYSE) United telecom ltd.,MTNL
Joint venture in Nepal,for providing WLL based services in Nepal
became operational. CLI based Internet express services
introduced.
- 2001 Launch
of GSM Mobile services, Launch of WLL mobile service, Listing of
MTNL at NYSE, started operation of CDMA-1X WLL services in Nepal
through joint venture company UTL, launch of CLI based internet
service.
- 2002 Launched
pre-paid GSM Mobile services under the brand name Trump.Email on
PSTN lines introduced under the brand name mtnlmail.
- 2003 Introduced
CDMA 1x 2000 Technology under the brand name Garuda 1-x.Introduced
pilot project of ADSL based Broadband services.Introduced Virtual
Phone services.Mahanagar Telephone Mauritius Ltd. bagged second
operator license in Mauritius.
- 2003 Launch
of CDMA-1X 2000 services, ADSL based pilot project for providing
broad band services.
- 2003 Mahanagar
Telephone Mauritius Limited (MTML) a 100%subsidiary company of
MTNL was incorporated as a private domestic company Mauritius.
- 2004 Expanded
GSM & CDMA capacity by 800,000 lines each (total 1.6 million
lines expanded) STD/ISD rates slashed by almost 60%. MTNL
subsidiary MTML obtained license to provide fixed, mobile &
ILD services in Mauritius. Launched Wi-Fi & digital
certification services. State of the art training centre CETTM
commissioned.
- 2004 Obtained
fixed, mobile and ILD services license in Mauritius. Started
Digital certification services, Commercial launch of broadband
services.
- 2005 Leading
market in GSM customer additions. Launched broadband services
under the brand name TRI BAND. Floated tender for 1 million 3G GSM
lines.
- 2005 The
broad band services using ADSL 2+ technology was launched in
January 2005
- 2006 Launched
IPTV Service in November 2006. WiMAX deployment started. WCDMA 3G
service's equipment procurement started, Pilot launch of Wi MAX
service begin.
- 2008 First
time in India, launched 3G Mobile Service.
- 2011 Launch
of FTTH services
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