Tory rebels have allegedly targeted Huawei Technologies again after a report citing anonymous Whitehall sources said that the government could phase out the Chinese tech giant's role in the UK by 2023, despite London's approval in January.
Reports from the Guardian and Telegraph remain unconfirmed as Downing Street has failed to comment on the matter.
But Britain's National Security Centre (NCSC) would assess the impact of such a decision on networks in the country affected by the change, it was found.
“The security and resilience of our networks is of paramount importance. Following the US announcement of additional sanctions against Huawei, the NCSC is looking carefully at any impact they could have to the UK’s networks,” a cross-government statement said as quoted by Reuters.
The news comes as Mr Johnson limited Huawei's market share in British infrastructure to roughly 35 percent following his crucial approval of the company in January.
Sputnik takes a look at the consequences of restricting Huawei's role in current and future telecoms networks.
Fallout From Restricting Huawei's Role in Britain's Digital Future
Concerns over a potential government U-turn have been voiced in the UK's telecoms industry as many carriers relying on Huawei's telecoms equipment could face major setbacks.
"A lot of the 4G expansion was software-upgradeable to do 5G when an extra mast antenna was fitted," Editor-in-Chief for media site ThinkBroadband, Andrew Ferguson, told the BBC.
Should the government impose further limits on Huawei equipment to new technologies, network carriers may still be forced to rip and replace older infrastructure, he added.
Press coverage was "based on a quote from a spokesperson originally quoted in The Guardian and Telegraph", with current government policy being driven by "a mixture of geo politics and fears of the unknown", a ThinkBroadband post said.
According to London's own estimates, a delay in rolling out 5G would cost the UK from £4.5bn to £6.8bn. Further losses of inward foreign direct investment and productivity would result from "stagnation of digital infrastructure", the report added.
Reducing Huawei's 5G equipment to the government's targeted 35 percent would cost Vodafone group roughly £178m (€200m) and "take around five years to implement", chief executive Nick Read said in a statement in April.
But BT, the UK's largest carrier and owner of mobile and broadband provider EE, said the 35 percent target would set back the company around £500m over five years to meet Downing Street's target.
“We are in the process of reviewing the guidance in detail to determine the full impact on our plans and at this time estimate an impact of around £500m over the next five years," BT chief executive Philip Jansen said in a statement in January.
It is understood that a full phase-out of Huawei by 2023 will have severe repercussions for Britain's telecoms industry amid Brexit and the ongoing COVID-19 pandemic.
Home Broadband: 'Rip and Replace' or 'Rip and Tear' Policy?
According to UK regulator Ofcom, Huawei accounts for 44 percent of Britain's equipment in the nation's superfast full-fibre.
But around 66,000 of the country's VDSL2 Fibre-to-the-Cabinet (FTTC) boxes, or roadside cabinets delivering fibre broadband to homes and offices, use Huawei equipment, ThinkBroadband added.
According to news outlet ISPReview, the UK's largest suppliers of cabinet equipment capable of handling multiple home and business connections are Huawei and Tel Aviv's Elastic Network Company (ECI).
But ECI equipment "has a long history of being problematic", resulting in delayed deployment of platform upgrades and other issues, ISPReview reported.
Huawei's MA5818 broadband equipment was "fairly capable" and supported gigafast (1000 megabytes per second), Very High Speed Digital Subscriber Lines (VDSL) and 10 Gigabyes per second passive-optical-network (PON) connections.
"Huawei has been very innovative at coming up with the smallest and lightest 5G equipment, meaning the operators can sometimes just use a cherry picker to hook it onto existing mast infrastructure. Some of the others' is heavier and bulkier, which can require more in terms of getting planning consent and road closures," Matthew Howett of Assembly told the BBC.
Such measures will also phase out the government's Full-Fibre Broadband For All 2025 pledge to extend fibre broadband coverage across the UK, setting back national infrastructure in performance due to an absence of equal suppliers.
Massachusetts-based Ribbon Communications Inc, who announced in November last year it would merge with ECI, appointed Bruce McClelland as CEO and President of the company in May following Darryl Edward's departure.
Helping To Keep Britain Connected 'Top Priority' - Huawei VP
Media speculation from "unnamed sources" did not make sense, Victor Zhang, Huawei Vice-President, said in a statement on the matter to Sputnik.
Downing Street decided in January to approve Huawei in rolling out 5G, "because Britain needs the best possible technologies, more choice, innovation and more suppliers" to build more secure and resilient networks, he said.
The statement comes after Washington extended a ban on US companies doing business with Huawei, ZTE and over 70 Chinese tech firms placed on an Entity List in May last year, citing national security concerns and despite granting licences.
Hsinchu-based Taiwan Semiconductor Manufacturing Co (TSMC) also stopped all new processor orders for Huawei over fears it would be targeted by the new measures from the Trump administration set to come into force in September.
Washington has repeatedly launched accusations against Beijing, stating that Huawei's equipment could be used to spy for the Chinese government, which the latter and Huawei have repeatedly and strongly denied. To date, Washington has not presented any evidence to back its claims, which Huawei and Chinese officials have urged US officials to provide.