The Queen is one of the most important women in the world, so we expect that she gets a lot of calls with plans to meet with important people and events to attend.
However, when someone rings the royal residence, it's not the Queen who picks up the phone, it's a member of staff.
If Her Majesty wants to talk to people directly, she has access to her own personal smartphone - a Samsung, apparently.
Royal commentator Jonathan Sacerdoti shared some of the Queen's dialling habits in a chat with US presenter Christina Garibaldi, where he revealed there are only two people that she answers to - and neither are her sons.
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He said that the Queen uses a Samsung which features anti-hacker encryption by MI6 and that she'll only answer the phone to her daughter Princess Anne and her racing manager John Warren.
As for her other three kids - Prince Charles, Prince Andrew and Prince Edward - maybe they'll have better luck calling her landline...
Sacerdoti told Garibaldi: "Apparently the Queen has two people who she speaks to the most on her phones."
He continued by saying: "She also apparently has a mobile phone which is said to be Samsung packed with anti-hacker encryption by MI6 so nobody can hack into her phone.
"But the two people she phones the most are said to be her daughter Princess Anne and her racing manager John Warren."
And particularly if John calls, "she answers", Sacerdoti added.
He explained: "He is the son-in-law of the Queen’s friend, the late Earl of Carnarvon and his home was Highclere castle in Berkshire which viewers of TV may know better as Downton Abbey."
Warren is considered one of the world’s leading horsemen and oversees all of the Queen’s racing and breeding interests.
Her royal majesty has been involved with horses for over 70 years and first attended the Royal Ascot in 1945 aged 19 years old, according to Britain Magazine.
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