Editing Telstra (section)

==Mobile networks==
The following is a list of known active mobile networks used by Telstra:
{| class="wikitable sortable"
|+Frequencies used on the Telstra network
|-
! Frequency 
!3GPP band!! Protocol !! Class !! class="unsortable" | Notes
|-
| 850&nbsp;MHz 
|n5/26/n26|| [[LTE (telecommunication)|LTE/LTE-A]]/NR ||4G/5G|| Originally used from 1987 for the 1G AMPS network which was decommissioned in 2000. In 2006 the disused frequency spectrum was reallocated for the initial Telstra [[Next G]] 3G network which now covers 99% of the Australian population. The 3G 850&nbsp;MHz network is scheduled for shut down in June 2024 so the spectrum can again be reallocated, this time for 5G. The 2008 shut down of the Telstra CDMA network in favour of the by then well established Next G 3G network allowed that further spectrum to be used for 3G 850&nbsp;MHz as well. Telstra closed their 850 MHz 3G network also known as 'NextG' on the 4/11/2024. 
|-
| 700&nbsp;MHz 
|28|| [[LTE (telecommunication)|LTE/LTE-A]] || 4G || Acquired in the digital dividend spectrum auction and live as of 1 January 2015. Advertised as "4GX".<ref>{{Cite news|url=https://exchange.telstra.com.au/introducing-the-future-of-4g-telstra-4gx/|title=Introducing the future of 4G: Telstra 4GX|date=3 November 2014|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730105717/https://exchange.telstra.com.au/introducing-the-future-of-4g-telstra-4gx/|archive-date=30 July 2017}}</ref> The 700&nbsp;MHz spectrum was made available by the national conversion of all analog TV broadcasts to digital.
|-
| 1800&nbsp;MHz 
|3|| [[LTE (telecommunication)|LTE/LTE-A]] || 4G || Originally used as a capacity layer for the 2G GSM 900&nbsp;MHz network it was decommissioned as 3G traffic overtook 2G allowing it to be reused for the [[3GPP Long Term Evolution|LTE]] roll-out in major capital cities and a significant range of regional centres has been completed, now covering most major metropolitan areas and major regional centres.
|-
|2100&nbsp;MHz
|1
|[[LTE (telecommunication)|LTE/LTE-A]]
|4G
|Originally used for 3G as a capacity layer as 3G traffic has diminished to is currently used as a capacity layer in high traffic 4G areas.
|-
|2600&nbsp;MHz
|7/n7
|[[LTE (telecommunication)|LTE/LTE-A]]/NR
|4G/5G
|Supplemental to the 700&nbsp;MHz and 1800&nbsp;MHz network in areas of high load. This band was acquired in the digital dividend spectrum auction and activated in major capital cities October 2014.<ref>{{Cite web|url=http://www.acma.gov.au/theACMA/digital-dividend-auction-results|title=Digital dividend auction—results|last=ACMA|date=20 June 2017|website=acma.gov.au|language=en|access-date=30 July 2017|url-status=dead|archive-url=https://web.archive.org/web/20170730120523/http://www.acma.gov.au/theACMA/digital-dividend-auction-results|archive-date=30 July 2017}}</ref><ref>{{Cite news|url=https://exchange.telstra.com.au/a-new-addition-to-the-spectrum-family-that-will-underpin-future-speeds-and-performance/|title=A new addition to the spectrum family that will underpin future speeds and performance|date=1 October 2014|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730110038/https://exchange.telstra.com.au/a-new-addition-to-the-spectrum-family-that-will-underpin-future-speeds-and-performance/|archive-date=30 July 2017}}</ref> Will be the first LTE band to be used and refarmed for 5G, as their spectrum holdings in 2600 MHz allow for impressive upload capabilities on their network. <ref>{{Cite web|url=https://www.ericsson.com/en/ran/elevate-5g?utm_medium=social_organic&utm_source=twitter&utm_campaign=gfmc-bnew_cspga_balos_accessnetw_20240215|title=5G & beyond: Ericsson solutions to exceed 5G expectations}}</ref>
|-
|3500&nbsp;MHz
|n78
|NR
|5G
|Channel bandwidth varies by geography and equipment configuration.
|-
|26000&nbsp;MHz
|n258
|NR
|5G
|Channel bandwidth 1000&nbsp;MHz as purchased via auction in April 2021 and will be used for so called Millimetre Wave (mmWave) technology.
|}

February 2011: [[Ericsson]] wins the LTE contract with Telstra. The [[3GPP Long Term Evolution|LTE]] network is being deployed in capital city CBDs and select regional centres throughout 2011. It will operate at 1800&nbsp;MHz and integrate with a HSPA+ service at 850&nbsp;MHz. A dual mode (LTE/HSPA+) mobile broadband device has been developed for the network.<ref>{{cite web |url=http://www.theaustralian.com.au/australian-it/ericsson-wins-4g-contract-with-telstra/story-e6frgakx-1226005957170 |title=Archived |publisher=[[The Australian]] |date=28 September 2012 |access-date=2023-04-24 |language=en |archive-date=June 22, 2014 |archive-url=https://web.archive.org/web/20140622062319/http://www.theaustralian.com.au/australian-it/ericsson-wins-4g-contract-with-telstra/story-e6frgakx-1226005957170}}</ref>

January 2012: Initial major LTE rollout complete. Incremental rollout continues, widening the coverage in capital cities and introducing new LTE coverage to regional centres.

July 2012: Telstra commences retailing a pocket-sized battery powered 4G WiFi router (ZTE MF91) for prepaid data customers, locked to Telstra, complementing its range of 4G-capable devices. Apart from the ZTE MF91, the Telstra 4G hardware range now comprises two dual mode (4G/3G) voice-capable handsets by HTC and ZTE (available for purchase outright or on a post-paid plan), a Sierra USB wireless modem (outright or post-paid plan), a ZTE USB wireless modem (prepaid, locked to Telstra) and a Sierra 4G Wifi battery powered pocket-sized router (outright or post-paid plan). Telstra is reported to now be operating LTE facilities from more than 3,500 transmission sites.

August 2013: Telstra demonstrates the world's first ever LTE- Advanced Carrier Aggregation network using the 900&nbsp;MHz and 1800&nbsp;MHz spectrum bands in the Sunshine Coast.<ref name=":0">{{Cite news|url=https://exchange.telstra.com.au/telstra-world-first-evolving-to-the-next-generations-of-mobile-network/|title=Telstra world first – evolving to the next generations of mobile network|date=13 August 2013|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730111253/https://exchange.telstra.com.au/telstra-world-first-evolving-to-the-next-generations-of-mobile-network/|archive-date=30 July 2017}}</ref>

April 2014: Telstra introduced a mobile broadband device from [[Huawei]] (''[[Huawei E5#Huawei E5786 - CAT 6 LTE device|E5786]]'') with [[LTE Advanced]] capability.<ref>{{cite web |url=http://exchange.telstra.com.au/2014/04/29/telstra-wi-fi-4g-advanced-pro-x-a-world-first/ |title=Telstra Wi-Fi 4G Advanced Pro X: a world first |publisher=Telstra |date=29 April 2014 |access-date=1 June 2014 |url-status=live |archive-url=https://web.archive.org/web/20140604004819/http://exchange.telstra.com.au/2014/04/29/telstra-wi-fi-4g-advanced-pro-x-a-world-first |archive-date=4 June 2014 }}</ref>

May 2014: Telstra and Ericsson demonstrate world first 450&nbsp;Mbit/s LTE-A downlink speeds in a commercial network with a Category 9 device.

September 2015: Telstra, in collaboration with NETGEAR, Ericsson and Qualcomm Technologies announce that it is bringing the world's first 4G LTE Advanced 600&nbsp;Mbit/s Category 11 device to customers.<ref>{{Cite news|url=https://exchange.telstra.com.au/telstra-launches-worlds-first-600mbps-capable-category-11-device/|title=Telstra launches world's first 600Mbps-capable Category 11 device {{!}} Telstra Exchange|date=16 September 2015|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730111612/https://exchange.telstra.com.au/telstra-launches-worlds-first-600mbps-capable-category-11-device/|archive-date=30 July 2017}}</ref>

September 2016: Telstra conducts the first live 5G trial in Australia with Ericsson, demonstrating 5G capabilities in a real world environment, including speed and beam steering tests.<ref>{{Cite news|url=https://exchange.telstra.com.au/reimagining-future-5g-first-live-trial-australia/|title=Reimagining the future with 5G – the first live trial in Australia {{!}} Telstra Exchange|date=20 September 2016|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730110803/https://exchange.telstra.com.au/reimagining-future-5g-first-live-trial-australia/|archive-date=30 July 2017}}</ref>

December 2016: Telstra shuts down the 900&nbsp;MHz [[GSM]]/[[EDGE (telecommunication)|EDGE]] network on 1 December.<ref>{{cite web|url=https://crowdsupport.telstra.com.au/t5/Telstra-Product-Exits/Our-2G-Network-is-closing/ba-p/440992|title=Our 2G Network has closed|date=8 April 2015|url-status=live|archive-url=https://web.archive.org/web/20160819024258/https://crowdsupport.telstra.com.au/t5/Telstra-Product-Exits/Our-2G-Network-is-closing/ba-p/440992|archive-date=19 August 2016}}</ref> Prior to this, EDGE data capabilities were available on 100% of the GSM networks used.

January 2017: Telstra launches world's first Gigabit LTE-Advanced mobile network.<ref>{{Cite news|url=https://exchange.telstra.com.au/one-step-closer-to-5g-with-gigabit-speeds/|title=One step closer to 5G with gigabit speeds {{!}} Telstra Exchange|date=31 January 2017|work=Telstra Exchange|access-date=30 July 2017|language=en-US|url-status=live|archive-url=https://web.archive.org/web/20170730105931/https://exchange.telstra.com.au/one-step-closer-to-5g-with-gigabit-speeds/|archive-date=30 July 2017}}</ref><ref>{{Cite news|url=http://www.news.com.au/technology/innovation/telstra-tests-incredibly-fast-gigabit-lte-mobile-network/news-story/bf03e77489e2990f0fcf180462804319|title=Telstra launches mobile network 10 times faster than NBN|work=NewsComAu|access-date=30 July 2017|language=en|url-status=live|archive-url=https://web.archive.org/web/20170730111654/http://www.news.com.au/technology/innovation/telstra-tests-incredibly-fast-gigabit-lte-mobile-network/news-story/bf03e77489e2990f0fcf180462804319|archive-date=30 July 2017}}</ref>

March 2019: Telstra closed the 2100&nbsp;MHz (Band 1) section of its 3G network on 25 March.<ref>{{cite web |last1=Choros |first1=Alex |title=Australian 3G Network Shutdown: Everything you need to know |url=https://www.whistleout.com.au/MobilePhones/Guides/Australian-3G-network-shutdown-what-you-need-to-know |website=WhistleOut |access-date=27 April 2020 |archive-date=26 July 2020 |archive-url=https://web.archive.org/web/20200726231438/https://www.whistleout.com.au/MobilePhones/Guides/Australian-3G-network-shutdown-what-you-need-to-know |url-status=live }}</ref>

May 2020: Telstra made available Australia's first 5G network using 3500&nbsp;MHz spectrum.

April 2021: Telstra purchased via Auction 1000&nbsp;MHz of 26&nbsp;GHz (26,000&nbsp;MHz) Spectrum nationally for 5G mmWave technology.

December 2021: Telstra purchased via auction an additional 10&nbsp;MHz paired of 850&nbsp;MHz spectrum to put to use for their network.<ref>[https://www.acma.gov.au/spectrum-allocation-and-auction-summary-850900-mhz-band-2021 Spectrum allocation and auction summary – 850/900 MHz band (2021)]</ref>

November 2023: Telstra purchased via auction 55-110&nbsp;MHz of additional 5G spectrum to boost capacity on their 5G network. Key markets such as Melbourne and Sydney gained an additional 80&nbsp;MHz.<ref>{{Cite web|url=https://announcements.asx.com.au/asxpdf/20231123/pdf/05xplz8r7rg913.pdf|title=Telstra secures mid-band spectrum}}</ref>

On 28 October 2024, Telstra will be closing its 3G network, saying "It's about providing a better experience for our customers." Telstra says that the closure of its 3G network will allow them to "repurpose spectrum to support [Telstra's] 5G rollout."<ref>{{Cite web |title=3G network closure - Telstra |url=https://www.telstra.com.au/support/mobiles-devices/3g-closure |access-date=2024-08-15 |website=Telstra.com |language=en}}</ref> In October 2019, Telstra had announced 3G's closure to be in June 2024, but has since been moved to 28 October 2024.<ref>{{Cite journal |last=Duckett |first=Chris |date=8 October 2019 |title=Telstra flags 3G switch off planned for 2024 |url=https://www.zdnet.com/article/telstra-flags-3g-switch-off-planned-for-2024/ |journal=[[ZDNET]]}}</ref>

===Next G network===

In 2005, Telstra announced a plan to upgrade its ageing networks and systems; which includes a new 3G network to replace the then current CDMA mobile network.<ref>{{cite news |first=Iain |last=Ferguson |title=Telstra to slash tech costs under review |publisher=[[ZDNet]] |date=15 November 2005 |url=https://www.zdnet.com/home-and-office/networking/telstra-to-slash-tech-costs-under-review/ |access-date=30 April 2011 |url-status=live |archive-url=https://web.archive.org/web/20110404202138/http://www.zdnet.com.au/telstra-to-slash-tech-costs-under-review-139222399.htm |archive-date=4 April 2011 }}</ref><ref>{{cite news |first=Malcolm |last=Maiden |title=Telstra dives as $10bn plans unveiled |newspaper=[[The Age]] |date=16 November 2005 |url=http://www.theage.com.au/news/business/telstra-dives-as-10bn-plans-unveiled/2005/11/15/1132016797364.html |access-date=30 April 2011 |url-status=live |archive-url=https://web.archive.org/web/20121106175643/http://www.theage.com.au/news/business/telstra-dives-as-10bn-plans-unveiled/2005/11/15/1132016797364.html |archive-date=6 November 2012 }}</ref>

The network was built between November 2005 and September 2006, and launched in October 2006. {{As of|2007}}, Next G was the largest mobile network in Australia, providing greater coverage than other 3G providers in Australia and over three times greater than any 2G provider in Australia.<ref name="TheAge"/> In December 2008, the Next G Network was also the fastest mobile network in the World, delivering theoretical network speeds of up to 21&nbsp;Mbit/s{{Update after|2012|2|21}}
<ref>{{cite web | url=https://www.zdnet.com/home-and-office/networking/telstra-boosts-next-g-to-21mbps/ | title=Telstra boosts Next G to 21Mbps | first=Suzanne | last=Tindal | date=8 December 2008 | publisher=[[ZDNet]] Australia | access-date=16 March 2009 | url-status=live | archive-url=https://web.archive.org/web/20090321030833/http://www.zdnet.com.au/news/communications/soa/Telstra-boosts-Next-G-to-21Mbps/0,130061791,339293706,00.htm | archive-date=21 March 2009 | df=dmy-all }}</ref> using features of [[Evolved High Speed Packet Access|HSPA+ and Dual-Carrier HSPA+]]. In February 2010, Telstra increased the speed up to 42&nbsp;Mbit/s making the Next G Network once again the fastest mobile network in the world.<ref>{{cite web | url=https://www.smh.com.au/technology/biz-tech/telstra-doubles-next-g-speeds-in-record-upgrade-20100215-o2bt.html | title=Telstra doubles the speed of its Next G HSPA+ network | first=MITCHELL | last=BINGEMANN | date=16 February 2010 | publisher=[[The Australian]] Australia | access-date=22 January 2012 | url-status=live | archive-url=https://web.archive.org/web/20120115172411/http://www.smh.com.au/technology/biz-tech/telstra-doubles-next-g-speeds-in-record-upgrade-20100215-o2bt.html | archive-date=15 January 2012 | df=dmy-all }}</ref>

On 26 September 2011, Telstra launched its [[4G Australia|4G]] 1800&nbsp;MHz LTE network, claiming typical download speeds of up to 40&nbsp;Mbit/s.<ref>{{cite web | url=https://www.zdnet.com/home-and-office/networking/telstras-4g-lte-goes-public/ | title=Telstra's 4G LTE goes public | first=Josh | last=Taylor | date=26 September 2011 | publisher=[[ZDNet]] Australia | access-date=22 January 2012 | url-status=live | archive-url=https://web.archive.org/web/20120705091610/http://www.zdnet.com/telstras-4g-lte-goes-public-1339323055/ | archive-date=5 July 2012 | df=dmy-all }}</ref>

The network is {{As of|2008|alt=currently}} used for BigPond's [[wireless broadband]] service and [[Telstra Mobile]], which is Australia's largest mobile telephone service provider, in terms of both subscriptions<ref name="cellular-news"/> and coverage<ref name="TheAge"/>

====Network design====
It was built to replace Telstra's [[IS-95|CDMA]] network which operated from 1999 until 28 April 2008.<ref>{{cite web |url=http://www.crn.com.au/News/74810,telstra-closes-its-cdma-network-today.aspx |title=Telstra closes its CDMA network today – Telecommunications – CRN Australia |access-date=7 July 2014 |url-status=dead |archive-url=https://web.archive.org/web/20080526130547/http://www.crn.com.au/News/74810,telstra-closes-its-cdma-network-today.aspx |archive-date=26 May 2008 }} Telstra closes its CDMA network today (28 April 2008)</ref> Telstra opted to use the 850&nbsp;MHz band for Next G in preference to the more common 2100&nbsp;MHz band, since it requires fewer base stations to provide coverage, providing a lower capital cost.<ref>Glossary. [http://www.telstra.com.au/abouttelstra/glossary/index.cfm#3gsm-850 3GSM 850] {{webarchive|url=https://web.archive.org/web/20120304034329/http://www.telstra.com.au/abouttelstra/glossary/index.cfm |date=4 March 2012 }}, ''Telstra.com.au'' <!--accessed 5 July 2009--></ref> This network was implemented under contract by [[Ericsson]] as part of a project internally dubbed "Project Jersey" and launched on 6 October 2006.<ref>[http://www.minister.dcita.gov.au/coonan/media/media_releases/minister_welcomes_telstra_next_g_launch Minister welcomes Telstra next G launch] {{webarchive|url=https://web.archive.org/web/20120322022420/http://www.minister.dcita.gov.au/coonan/media/media_releases/minister_welcomes_telstra_next_g_launch |date=22 March 2012 }} minister.dcita.gov</ref> [[High-Speed Packet Access|HSPA]] technology was included in the network to provide Australia's first wide area wireless broadband network. The efficiency of the Next G network and its coverage has been challenged and scrutinised since its launch, requiring Telstra to go back to areas with average coverage, particularly rural towns to improve its coverage footprint. On 18 January 2008, Stephen Conroy, Minister for Communications, declined the proposal for Telstra to switch off its CDMA network on 28 January 2008, stating that whilst the Next G network provided coverage equal to or better than the CDMA network, the range of handsets available was not yet satisfactory.<ref>{{cite web|url=http://www.australianit.news.com.au/story/0,24897,23083103-5013038,00.html|title=Conroy order delay of CDMA closure|url-status=dead|archive-url=https://web.archive.org/web/20080225160247/http://www.australianit.news.com.au/story/0,24897,23083103-5013038,00.html|archive-date=25 February 2008|access-date=7 July 2014}}</ref> On 15 April 2008, the Minister gave approval to close the CDMA network after 28 April 2008.<ref>{{cite web|url=http://www.minister.dbcde.gov.au/media/media_releases/2008/026|title=CDMA Network to close on 28th April 2008|url-status=dead|archive-url=https://web.archive.org/web/20130505011439/http://www.minister.dbcde.gov.au/media/media_releases/2008/026|archive-date=5 May 2013}}</ref> Telstra closed the network nationally during the early morning hours of 29 April 2008.<ref>{{cite web|url=http://www.news.com.au/couriermail/story/0,23739,23618766-953,00.html|title=The Courier Mail – Breaking News Headlines for Brisbane and Queensland – Courier Mail|website=news.com.au|url-status=live|archive-url=https://web.archive.org/web/20080709042810/http://www.news.com.au/couriermail/story/0,23739,23618766-953,00.html|archive-date=9 July 2008}}</ref>

While most wireless modems<ref>[http://www.bigpond.com/internet/plans/wireless/wireless-devices/#a_Device%20feature%20comparison Wireless Bigpond – Device feature comparison] {{webarchive|url=https://web.archive.org/web/20090831063024/http://www.bigpond.com/internet/plans/wireless/wireless-devices/ |date=31 August 2009 }}, ''Bigpond.com'' <!--accessed 3 July 2009--></ref> offered by Telstra allow peak download speeds of up to 7.2&nbsp;Mbit/s, a modem by [[Sierra Wireless]] was announced in 2009 that supported increased throughput.<ref>[http://gpsobsessed.com/sierra-wireless-usb-306-and-307-modems-first-to-support-hspa/ Sierra Wireless' USB 306 and 307 modems first to support HSPA+] {{webarchive|url=https://web.archive.org/web/20140715054240/http://gpsobsessed.com/sierra-wireless-usb-306-and-307-modems-first-to-support-hspa |date=15 July 2014 }} ''GPSObsessed.com'', 12 February 2009. <!--accessed 3 July 2009--></ref> The "USB 306" is marketed and sold by Telstra as the "Telstra Turbo 21 Modem", and was available in limited quantity in early 2009. By April, the "Turbo 21" was available to customers and offered peak download speeds of 21&nbsp;Mbit/s, although actual speeds vary between 550&nbsp;kbit/s and 8&nbsp;Mbit/s.<ref>{{cite web|title=Fact Sheet – Telstra Turbo 21 modems|url=http://www.nowwearetalking.com.au/library/pdf/news/fact-sheet-21-modem.pdf|archive-url=https://web.archive.org/web/20240918191149/http://www.nowwearetalking.com.au/library/pdf/news/fact-sheet-21-modem.pdf|url-status=dead|archive-date=18 September 2024|work=nowwearetalking.com.au|date=17 February 2009|access-date=3 July 2009}}</ref> {{As of|2009|6}}, Next G network [[HSUPA]] upgrades in selected regional and metropolitan areas, combined with software updates for the "Turbo 21" modem, will allow peak uplink speeds of up to 5.76&nbsp;Mbit/s.{{Update after|2012|2|21}}
<ref>Media Release. [http://www.telstra.com.au/abouttelstra/media/announcements_article.cfm?ObjectID=45163 "Australia's fastest mobile broadband just got faster with a world first combination of network and device capability"] {{webarchive|url=https://web.archive.org/web/20091023211333/http://www.telstra.com.au/abouttelstra/media/announcements_article.cfm?ObjectID=45163 |date=23 October 2009 }}, ''Telstra.com'', 23 June 2009. <!--accessed 3 July 2009--></ref>

===4GX===
On 1 January 2015, Telstra launched, what it calls "4GX": a 700&nbsp;MHz based component of its mobile network claiming speeds of up to 75&nbsp;Mbit/s with compatible devices.<ref>{{cite web|url=http://www.gizmodo.com.au/2014/10/what-is-4gx/|title=What Is 4GX?|author=Campbell Simpson|work=gizmodo.com.au|date=3 October 2014|url-status=live|archive-url=https://web.archive.org/web/20141216085913/http://www.gizmodo.com.au/2014/10/what-is-4gx/|archive-date=16 December 2014}}</ref> 4GX has been expanded up to a 5 x Carrier Aggregation LTE Advanced Pro network, with up to two gigabits of capacity in selected locations using 700, 1800, 2100 and 2600 MHz frequencies.

=== Business Technology Services (BTS) ===

In January 2016, Telstra announced its acquisition of cloud service provider Kloud.<ref>{{Cite web|url=https://www.crn.com.au/news/telstra-acquires-kloud-413936|title=Telstra acquires Kloud|website=CRN Australia|access-date=8 September 2017|url-status=live|archive-url=https://web.archive.org/web/20170908201040/https://www.crn.com.au/news/telstra-acquires-kloud-413936|archive-date=8 September 2017}}</ref> This was followed closely by the acquisition of application development company Readify in July 2016.<ref>{{Cite web|url=https://exchange.telstra.com.au/telstra-acquires-application-development-company-readify/|title=Telstra acquires application development company Readify|date=4 July 2016|website=Telstra Exchange|language=en-US|access-date=4 July 2019|archive-date=4 July 2019|archive-url=https://web.archive.org/web/20190704005448/https://exchange.telstra.com.au/telstra-acquires-application-development-company-readify/|url-status=live}}</ref>