Almost 100 MPs have complained that foreign visitors get a better mobile service in the UK than residents because they are able to roam between networks to pick up coverage, whereas locals cannot.
As such, the British Infrastructure Group (BIG) led by MP Grant Shapps, has said that operators should be forced to provide national roaming to improve coverage around the country.
BIG explained how 17 million UK mobile customers have poor reception at home, while 525 areas around the country have no coverage at all.
The report also noted that the UK's £5bn agreement with mobile networks, which was set up in 2014, isn't going to get rid of blackspots by its 2017 deadline.
"Although the British mobile communications sector has flourished through sustained private sector investment, comparing favourably with EU markets in terms of service costs and technological advances, visitors to Britain have consistently enjoyed better and broader mobile coverage," said the BIG Mobile Coverage: A Good Call for Britain? report (PDF).
"Whereas British consumers remain stuck with a single provider, international SIM cards roam between different networks. This is a bad call for connectivity in Britain.
"Instead, this report takes a second look at the costs and benefits of national roaming, and urges the government to reconsider this approach on a smaller scale in areas severely affected by ‘not spots'.
"In light of Ofcom recently fining Vodafone £4.6m for breaching consumer protection rules, the treatment of mobile consumers requires greater scrutiny."
The report argued that Ofcom should get involved in the situation and do what it can to put pressure on operators to start working towards this goal.
"This BIG report also urges the passage of the Digital Economy Bill to kick-start much needed reforms to the Electronic Communications Code and to provide Ofcom with the ability to ensure that mobile operators become accountable to consumers," Shapps added.
"Britain is yet to achieve mobile coverage for all. The government must rethink which policies are the best call for Britain."
However, whether such an idea could really take off is doubtful, as it is believed that then home secretary Theresa May was against the idea around two years ago, believing it would hamper the ability of security agencies to track criminals.
As prime minister it seems doubtful she will have changed her stance.
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