Advanced Mobile Phone System (English Wikipedia)

"Ten years of GSM in Australia". AMTA. Australian Mobile Telecommunications Association. 2003. Archived from the original on July 20, 2008. Retrieved August 16, 2008.

arrl.org (Global: low place; English: 7,257^th place)

"Why are cellular bands blocked on receivers?". Forum-General discussion about technology and policy. Arrl.org. Retrieved September 28, 2013.

att.com (Global: low place; English: 7,681^st place)

techchannel.att.com

AT&T Tech Channel (June 13, 2011). "AT&T Archives : Testing the First Public Cell Phone Network". Techchannel.att.com. Archived from the original on October 29, 2013. Retrieved September 28, 2013.

books.google.com (Global: 3^rd place; English: 3^rd place)

Anton A. Huurdeman, The Worldwide History of Telecommunications, John Wiley & Sons, 31 juli 2003, page 533

britannica.com (Global: 37^th place; English: 64^th place)

Mobile telephone Encyclopædia Britannica.

broadpointinc.com (Global: low place; English: low place)

"Broadpoint". www.broadpointinc.com. Archived from the original on December 30, 2007.

brophy.net (Global: low place; English: low place)

"John F. Mitchell Biography". Brophy.net. August 7, 2012. Archived from the original on February 23, 2017. Retrieved September 28, 2013.
"Who invented the cell phone?". Brophy.net. August 7, 2012. Archived from the original on February 23, 2017. Retrieved September 28, 2013.

businessweek.com (Global: 945^th place; English: 628^th place)

Sager, Ira (June 29, 2012). "Before IPhone and Android Came Simon, the First Smartphone". Bloomberg Businessweek. Bloomberg L.P. Archived from the original on July 1, 2012. Retrieved June 30, 2012. Simon was the first smartphone. Twenty years ago, it envisioned our app-happy mobile lives, squeezing the features of a cell phone, pager, fax machine, and computer into an 18-ounce black brick.

canberratimes.com.au (Global: 3,502^nd place; English: 1,773^rd place)

Dickerson, Mathew (July 30, 2020). "Australia's mobile phone network has come a long way". Canberra Times. Retrieved November 15, 2022.

channelnewsasia.com (Global: 1,005^th place; English: 573^rd place)

Janice Lim (June 15, 2015). "How mobile services in Singapore have evolved". Channel NewsAsia. Archived from the original on March 23, 2017. Retrieved March 22, 2017.

chicagotribune.com (Global: 143^rd place; English: 80^th place)

Lane, Clare (June 17, 2009). "John F. Mitchell, 1928–2009: Was president of Motorola from 1980 to '95". Chicago Tribune. Retrieved December 5, 2011.
O'Malley, Kathy (March 19, 1995). "COSTLY CELLULAR PHONE FRAUD RISES WITH NUMBER 'CLONING'". Chicago Tribune. Retrieved June 18, 2019.

cnet.com (Global: 447^th place; English: 345^th place)

"A Motorola retrospective (photos)". CNET. Retrieved March 18, 2026.

commsbrief.com (Global: low place; English: low place)

Ghayas, Adnan (November 7, 2019). "How are AMPS and D-AMPS different from GSM and CDMA? – Commsbrief". Retrieved March 18, 2026.

commsupdate.com (Global: low place; English: 9,838^th place)

"TDMA switch-off delayed". TeleGeography. Retrieved July 29, 2022.

crai.com (Global: low place; English: low place)

media.crai.com

"To open or not to open a technological system: insights from the history of mobile phones and their application to 5G" (PDF). media.crai.com. Archived (PDF) from the original on August 9, 2022. Retrieved October 11, 2022.

doi.org (Global: 2^nd place; English: 2^nd place)

"mobile phone system standard", SpringerReference, Berlin/Heidelberg: Springer-Verlag, 2011, doi:10.1007/springerreference_19035 (inactive March 31, 2026), retrieved March 18, 2026{{citation}}: CS1 maint: DOI inactive as of March 2026 (link)
Huff, D. L. (January 1979), "Advanced Mobile Phone Service: The Developmental System", Bell System Technical Journal, 58 (1): 249–269, Bibcode:1979BSTJ...58..249H, doi:10.1002/j.1538-7305.1979.tb02218.x, retrieved November 13, 2024
Young, W. Rae (January 1979), "Advanced Mobile Phone Service: Introduction, Background, and Objectives", Bell System Technical Journal, 58 (1): 1–14, Bibcode:1979BSTJ...58T08.xY, doi:10.1002/j.1538-7305.1979.tb02208.x (Note: Young was the Bell Labs engineer who invented the hexagonal cell concept.)
Fluhr, Z. C.; Porter, P. T. (January 1979), "Advanced Mobile Phone Service: Introduction, Background, and Objectives", Bell System Technical Journal, 58 (1): 43–69, doi:10.1002/j.1538-7305.1979.tb02210.x (Note: Porter was the Bell Labs engineer who proposed that the cell towers be at the corners of the hexagons rather than the centers and have directional antennas that would transmit/receive in 3 directions into 3 adjacent hexagon cells.)

enterpriseitnews.com.my (Global: low place; English: low place)

"Down Memory Lane: Malaysia's Telco Past". Enterprise IT News. May 7, 2019. Retrieved January 9, 2023.

fcc.gov (Global: 583^rd place; English: 261^st place)

fcc.gov

"800 MHz Cellular Service". Federal Communications Commission (FCC). September 27, 2022.

wireless.fcc.gov

47cfr15.121 http://edocket.access.gpo.gov/cfr_2010/octqtr/47cfr15.121.htm and http://wireless.fcc.gov/services/index.htm?job=service_home&id=cellular Archived October 26, 2011, at the Wayback Machine

fiercewireless.com (Global: low place; English: low place)

"AT&T shutting down TDMA network". June 22, 2007. Retrieved January 22, 2024.

globo.com (Global: 45^th place; English: 177^th place)

g1.globo.com

Estado, Agencia (July 16, 2010). "Celulares analógicos estão extintos no Brasil, diz Anatel". Tecnologia e Games.

gpo.gov (Global: 1,819^th place; English: 1,036^th place)

edocket.access.gpo.gov

47cfr15.121 http://edocket.access.gpo.gov/cfr_2010/octqtr/47cfr15.121.htm and http://wireless.fcc.gov/services/index.htm?job=service_home&id=cellular Archived October 26, 2011, at the Wayback Machine

historyofthecellphone.com (Global: low place; English: low place)

"The Top Giants in Telephony". Historyofthecellphone.com. June 11, 2009. Archived from the original on January 17, 2013. Retrieved September 28, 2013.

itworld.com (Global: low place; English: low place)

wireless.itworld.com

ITWorld Archived October 16, 2006, at the Wayback Machine

jetro.go.jp (Global: 5,972^nd place; English: low place)

"Cellular companies of Uzbekistan" (PDF). January 25, 2006. Archived from the original (PDF) on October 7, 2017. Retrieved January 9, 2023.

milestonespast.com (Global: low place; English: low place)

MilestonesPast Archived October 6, 2011, at the Wayback Machine

onstar.com (Global: low place; English: low place)

"Helpful Info | Analog-to-Digital Transition". OnStar. Archived from the original on October 11, 2007.

profit.kz (Global: low place; English: low place)

LLP, Profit Online. "Мобильная связь в Казахстане". Profit.kz — ИТ в Казахстане (in Russian). Retrieved June 22, 2022.

pta.gov.pk (Global: low place; English: low place)

"Home | PTA". pta.gov.pk.

rogers.com (Global: low place; English: low place)

about.rogers.com

"Majority of Rogers' Remaining TDMA and Analogue Subscribers Already Moved to GSM". Rogers. May 3, 2007. Retrieved March 12, 2022.

springerreference.com (Global: low place; English: low place)

"mobile phone system standard", SpringerReference, Berlin/Heidelberg: Springer-Verlag, 2011, doi:10.1007/springerreference_19035 (inactive March 31, 2026), retrieved March 18, 2026{{citation}}: CS1 maint: DOI inactive as of March 2026 (link)

sptnews.ca (Global: low place; English: low place)

"SP&T News". Sptnews.ca. September 21, 2013. Retrieved September 28, 2013.

straitstimes.com (Global: 461^st place; English: 263^rd place)

graphics.straitstimes.com

"Supercharging Singapore". The Straits Times. October 10, 2015.

thefreelibrary.com (Global: 686^th place; English: 383^rd place)

"CELLULAR TELEPHONE BUSINESS SLUMPING; MARKET COMPETITION UP. - Free Online Library". www.thefreelibrary.com. Retrieved June 22, 2022.

usitc.gov (Global: low place; English: low place)

"Global Competitiveness of U.S. Advanced-Technology Industries: Cellular Communications" (PDF). United States International Trade Commission. June 1, 1993. Retrieved October 11, 2022.

web.archive.org (Global: 1^st place; English: 1^st place)

AT&T Tech Channel (June 13, 2011). "AT&T Archives : Testing the First Public Cell Phone Network". Techchannel.att.com. Archived from the original on October 29, 2013. Retrieved September 28, 2013.
Private Line
MilestonesPast Archived October 6, 2011, at the Wayback Machine
"Ten years of GSM in Australia". AMTA. Australian Mobile Telecommunications Association. 2003. Archived from the original on July 20, 2008. Retrieved August 16, 2008.
"John F. Mitchell Biography". Brophy.net. August 7, 2012. Archived from the original on February 23, 2017. Retrieved September 28, 2013.
"The Top Giants in Telephony". Historyofthecellphone.com. June 11, 2009. Archived from the original on January 17, 2013. Retrieved September 28, 2013.
"Who invented the cell phone?". Brophy.net. August 7, 2012. Archived from the original on February 23, 2017. Retrieved September 28, 2013.
Sager, Ira (June 29, 2012). "Before IPhone and Android Came Simon, the First Smartphone". Bloomberg Businessweek. Bloomberg L.P. Archived from the original on July 1, 2012. Retrieved June 30, 2012. Simon was the first smartphone. Twenty years ago, it envisioned our app-happy mobile lives, squeezing the features of a cell phone, pager, fax machine, and computer into an 18-ounce black brick.
47cfr15.121 http://edocket.access.gpo.gov/cfr_2010/octqtr/47cfr15.121.htm and http://wireless.fcc.gov/services/index.htm?job=service_home&id=cellular Archived October 26, 2011, at the Wayback Machine
ITWorld Archived October 16, 2006, at the Wayback Machine
"Helpful Info | Analog-to-Digital Transition". OnStar. Archived from the original on October 11, 2007.
"To open or not to open a technological system: insights from the history of mobile phones and their application to 5G" (PDF). media.crai.com. Archived (PDF) from the original on August 9, 2022. Retrieved October 11, 2022.
"Analog Sunset Archived December 27, 2007, at the Wayback Machine" alltel.com
"Broadpoint". www.broadpointinc.com. Archived from the original on December 30, 2007.
GSMA Intelligence (May 16, 2013). "GSMA Intelligence". Wirelessintelligence.com. Archived from the original on May 30, 2013. Retrieved September 28, 2013.
Janice Lim (June 15, 2015). "How mobile services in Singapore have evolved". Channel NewsAsia. Archived from the original on March 23, 2017. Retrieved March 22, 2017.
"Cellular companies of Uzbekistan" (PDF). January 25, 2006. Archived from the original (PDF) on October 7, 2017. Retrieved January 9, 2023.

wiley.com (Global: 150^th place; English: 174^th place)

onlinelibrary.wiley.com

Huff, D. L. (January 1979), "Advanced Mobile Phone Service: The Developmental System", Bell System Technical Journal, 58 (1): 249–269, Bibcode:1979BSTJ...58..249H, doi:10.1002/j.1538-7305.1979.tb02218.x, retrieved November 13, 2024
Young, W. Rae (January 1979), "Advanced Mobile Phone Service: Introduction, Background, and Objectives", Bell System Technical Journal, 58 (1): 1–14, Bibcode:1979BSTJ...58T08.xY, doi:10.1002/j.1538-7305.1979.tb02208.x (Note: Young was the Bell Labs engineer who invented the hexagonal cell concept.)
Fluhr, Z. C.; Porter, P. T. (January 1979), "Advanced Mobile Phone Service: Introduction, Background, and Objectives", Bell System Technical Journal, 58 (1): 43–69, doi:10.1002/j.1538-7305.1979.tb02210.x (Note: Porter was the Bell Labs engineer who proposed that the cell towers be at the corners of the hexagons rather than the centers and have directional antennas that would transmit/receive in 3 directions into 3 adjacent hexagon cells.)

wirelessintelligence.com (Global: low place; English: low place)

GSMA Intelligence (May 16, 2013). "GSMA Intelligence". Wirelessintelligence.com. Archived from the original on May 30, 2013. Retrieved September 28, 2013.

youtube.com (Global: 13^th place; English: 14^th place)

"Analog Cellphone Calls on UHF Channels of a TV". YouTube. June 7, 2012.

Advanced Mobile Phone System (English Wikipedia)

adsabs.harvard.edu (Global: 14th place; English: 9th place)

ui.adsabs.harvard.edu

alltel.com (Global: low place; English: low place)

amta.org.au (Global: low place; English: low place)

arrl.org (Global: low place; English: 7,257th place)

att.com (Global: low place; English: 7,681st place)

techchannel.att.com

books.google.com (Global: 3rd place; English: 3rd place)

britannica.com (Global: 37th place; English: 64th place)

broadpointinc.com (Global: low place; English: low place)

brophy.net (Global: low place; English: low place)

businessweek.com (Global: 945th place; English: 628th place)

canberratimes.com.au (Global: 3,502nd place; English: 1,773rd place)

channelnewsasia.com (Global: 1,005th place; English: 573rd place)

chicagotribune.com (Global: 143rd place; English: 80th place)

cnet.com (Global: 447th place; English: 345th place)

commsbrief.com (Global: low place; English: low place)

commsupdate.com (Global: low place; English: 9,838th place)

crai.com (Global: low place; English: low place)

media.crai.com

doi.org (Global: 2nd place; English: 2nd place)

enterpriseitnews.com.my (Global: low place; English: low place)

fcc.gov (Global: 583rd place; English: 261st place)

fcc.gov

wireless.fcc.gov

fiercewireless.com (Global: low place; English: low place)

globo.com (Global: 45th place; English: 177th place)

g1.globo.com

gpo.gov (Global: 1,819th place; English: 1,036th place)

edocket.access.gpo.gov

historyofthecellphone.com (Global: low place; English: low place)

itworld.com (Global: low place; English: low place)

wireless.itworld.com

jetro.go.jp (Global: 5,972nd place; English: low place)

milestonespast.com (Global: low place; English: low place)

onstar.com (Global: low place; English: low place)

profit.kz (Global: low place; English: low place)

pta.gov.pk (Global: low place; English: low place)

rogers.com (Global: low place; English: low place)

about.rogers.com

springerreference.com (Global: low place; English: low place)

sptnews.ca (Global: low place; English: low place)

straitstimes.com (Global: 461st place; English: 263rd place)

graphics.straitstimes.com

thefreelibrary.com (Global: 686th place; English: 383rd place)

usitc.gov (Global: low place; English: low place)

web.archive.org (Global: 1st place; English: 1st place)

wiley.com (Global: 150th place; English: 174th place)

onlinelibrary.wiley.com

wirelessintelligence.com (Global: low place; English: low place)

youtube.com (Global: 13th place; English: 14th place)

adsabs.harvard.edu (Global: 14^th place; English: 9^th place)

arrl.org (Global: low place; English: 7,257^th place)

att.com (Global: low place; English: 7,681^st place)

books.google.com (Global: 3^rd place; English: 3^rd place)

britannica.com (Global: 37^th place; English: 64^th place)

businessweek.com (Global: 945^th place; English: 628^th place)

canberratimes.com.au (Global: 3,502^nd place; English: 1,773^rd place)

channelnewsasia.com (Global: 1,005^th place; English: 573^rd place)

chicagotribune.com (Global: 143^rd place; English: 80^th place)

cnet.com (Global: 447^th place; English: 345^th place)

commsupdate.com (Global: low place; English: 9,838^th place)

doi.org (Global: 2^nd place; English: 2^nd place)

fcc.gov (Global: 583^rd place; English: 261^st place)

globo.com (Global: 45^th place; English: 177^th place)

gpo.gov (Global: 1,819^th place; English: 1,036^th place)

jetro.go.jp (Global: 5,972^nd place; English: low place)

straitstimes.com (Global: 461^st place; English: 263^rd place)

thefreelibrary.com (Global: 686^th place; English: 383^rd place)

web.archive.org (Global: 1^st place; English: 1^st place)

wiley.com (Global: 150^th place; English: 174^th place)

youtube.com (Global: 13^th place; English: 14^th place)