A prototype of the new urban electric bus "Aptis" is presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

Henri Poupart-Lafarge (L), Chairman and Chief Executive Officer of Alstom, and David Journet, Managing Director of NTL, pose in front of a prototype of the new urban electric bus "Aptis" presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

Henri Poupart-Lafarge (L), Chairman and Chief Executive Officer of Alstom, and David Journet, Managing Director of NTL, pose in front of a prototype of the new urban electric bus "Aptis" presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

Henri Poupart-Lafarge (L), Chairman and Chief Executive Officer of Alstom, and David Journet, Managing Director of NTL, pose in front of a prototype of the new urban electric bus "Aptis" presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

A prototype of the new urban electric bus "Aptis" is presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

A prototype of the new urban electric bus "Aptis" is presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

A prototype of the new urban electric bus "Aptis" is presented at the NTL "New Translohr" factory, a subsidiary of French manufacturer Alstom, in Duppigheim near Strasbourg, France, March 9, 2017. REUTERS/Vincent Kessler

Virgin Group Chairman Richard Branson is seen dangling on a rope to unveil the Virgin Mobile logo in Mumbai in this March 2, 2008 file photograph. Virgin Mobile, a unit of British communications group Virgin Media, has launched youth-focused services in India through telecom operator Tata Teleservices, officials from the companies said on Sunday. John Malone's cable group Liberty Global has approached Britain's No. 2 pay-TV operator Virgin Media, formed by the merger of cable groups Telewest and NTL and mobile operator Virgin Mobile, about making a bid for the firm, the UK group said on February 5, 2013. REUTERS/Punit Paranjpe/Files (INDIA - Tags: BUSINESS TELECOMS)

- PHOTO TAKEN 03MAY06 - NTL satellite dishes are seen at their offices in Nottingham, central England in this file photo taken April 3, 2006. [Cable company NTL reported a small first-quarter operating profit on May 9, 2006, as it announced plans to cut about 6,000 jobs by the end of 2007 following its merger with rival Telewest.]

A man inserts a NTL card into his digital receiver in central England in this file photo taken April 3, 2006. Cable company NTL reported a small first-quarter operating profit on May 9, 2006, as it announced plans to cut about 6,000 jobs by the end of 2007 following its merger with rival Telewest. REUTERS/Darren Staples

NTL satellite dishes are seen at their offices in Nottingham, central England in this file photo taken April 3, 2006. Cable company NTL reported a small first-quarter operating profit on May 9, 2006, as it announced plans to cut about 6,000 jobs by the end of 2007 following its merger with rival Telewest. REUTERS/Darren Staples

A man inserts a NTL card into his digital receiver in central England, April 3, 2006. Cable Television group NTL is close to announcing an agreed bid for [Virgin Mobile UK], valuing Britain's fifth-largest cell phone operator at about 919 million pounds ($1.6 billion), sources close to the talks said.

A man walks past NTL satellite dishes at their offices in Nottingham, central England, April 3, 2006. Cable Television group NTL is close to announcing an agreed bid for [Virgin Mobile UK], valuing Britain's fifth-largest cell phone operator at about 919 million pounds ($1.6 billion), sources close to the talks said.

NTL satelite dishes are seen at their offices in Nottingham, central England, April 3, 2006. Cable Television group NTL is close to announcing an agreed bid for Virgin Mobile UK, valuing Britain's fifth-largest cell phone operator at about 919 million pounds ($1.6 billion), sources close to the talks said. REUTERS/Darren Staples

A man inserts a NTL card into his digital receiver in central England, April 3, 2006. Cable Television group NTL is close to announcing an agreed bid for Virgin Mobile UK, valuing Britain's fifth-largest cell phone operator at about 919 million pounds ($1.6 billion), sources close to the talks said. REUTERS/Darren Staples

A man walks past NTL satellite dishes at their offices in Nottingham, central England, April 3, 2006. Cable Television group NTL is close to announcing an agreed bid for Virgin Mobile UK, valuing Britain's fifth-largest cell phone operator at about 919 million pounds ($1.6 billion), sources close to the talks said. REUTERS/Darren Staples

Richard Branson (C), Virgin Mobile Holdings majority owner, poses at the end of a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the [British media] on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share.

Richard Branson (R), Virgin Mobile Holdings majority owner, poses at the end of a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the [British media] on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share.

Richard Branson, Virgin Mobile Holdings majority owner, gestures during a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the British media on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share. REUTERS/ Nir Elias

Richard Branson (R), Virgin Mobile Holdings majority owner, poses at the end of a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the British media on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share. REUTERS/ Nir Elias

Richard Branson, Virgin Mobile Holdings majority owner, gestures at the end of a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the British media on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share. REUTERS/ Nir Elias

Richard Branson (C), Virgin Mobile Holdings majority owner, poses at the end of a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the British media on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share. REUTERS/Nir Elias

Richard Branson, Virgin Mobile Holdings majority owner, gestures during a news conference in Shanghai December 5, 2005. Branson said on Monday a report in the British media on the sale of the mobile operator to British cable company NTL Inc. was "not too far off what may be happening." According to the report, Virgin Mobile was expected to confirm it has received an offer from NTL, but the mobile operator's directors were not prepared to accept the offer price of 323 pence per share. REUTERS/ Nir Elias

Netherlands Prime Minister Wim Kok (R) and French President Jacques Chirac (L) pose as they enter the Binnenhof prior to a meeting in The Hague, Netherlands December 2, 2000.

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Chief Executive of communications company NTL, Barclay Knapp poses with a laptop computer advertising the launch date of NTL's free internet access, March 7. NTL is offering its telephone customers unlimited access to the internet via home computers from April 17.

HP