Police are to get powers to force internet firms to hand over details that could help identify suspected terrorists and paedophiles.
The Anti-Terrorism and Security Bill will oblige internet service providers (ISPs) to retain information linking Internet Protocol (IP) addresses to individual users.
Home Secretary Theresa May said the measure would boost national security.
She said: "The Bill provides the opportunity to resolve the very real problems that exist around IP resolution and is a step in the right direction towards bridging the overall communications data capability gap.
"It is a matter of national security and we must keep on making the case for the Communications Data Bill until we get the changes we need."
However, the Lib Dems insisted that legislation - branded the "Snooper's Charter" - was "dead and buried".
Vodafone have said they will continue to monitor 111 and 101 phoneline services after a technical issue caused the non-emergency helplines to stop working this morning.
A spokesman for the phone company said: "We will continue to monitor the services closely and will be carrying out a full investigation into the issue. We apologise for any inconvenience caused.”
NHS England have confirmed that its 111 helpline is working normally again.
A statement from NHS England said: "The NHS 111 is now working normally. A previous technical issue has been resolved. The public should use the service as normal."
The technical problem that brought down the 101 non-emergency police number has now been resolved, Staffordshire Police have tweeted.
UPDATE: national 101 problem resolved, please use the 101 non emergency number if you need to contact police, thank you PLS RT
Scottish police are also experiencing problems with the forces non-emergency 101 number.
Police Scotland's official twitter account posted:
We are aware of an issue when dialling 101. Please call 01786 289070 instead. In an emergency always call 999.
The Metropolitan Police have urged the public not to dial 999 while they cannot get through to the 101 non-emergency line.
There are problems with the 101 non-emergency number - pls use http://t.co/6RPX7xwSxb or visit local station to report non-urgent crime. 1/2
999 calls remain unaffected but Londoners are reminded to only use this in an emergency. 2/2
The Met have posted details of how to contact them on their Twitter feed, as have various other police forces around the country.
101# is still down. If you need to speak to us regarding a non emergency call us on 0845 458 0000
101 is still down nationally. Emergency 999 is not affected. Need to contact us now? 01273 470101 or email firstname.lastname@example.org.
There is currently and issue with 101 nationally. Ring 0345 6060 365 or 999 in an emergency.
The NHS 111 helpline is currently down due to a technical problem.
NHS 111 is currently down due to a technical problem - if you need non-urgent health advice call 0300 0200 155 or contact GP out of hours.
Basildon and Brentwood Clinical Commissioning Group, which runs NHS services in Essex, has tweeted advising people to call 0300 0200 155 for non-urgent health advice.
People with concerns can also visit the NHS Choices website.
The 101 emergency phone line is not working due to a technical fault, police forces around the country are reporting.
At least nine different police forces have now tweeted that the line is down.
We can confirm that 101 is not working nationally. Fault lies with some kit in Birmingham which is being worked on #9523
There is a national issue with our none emergency 101 line and unfortunately it is off service until further notice. 999 is still fine.
Humberside Police said the fault lay with "some kit in Birmingham" which is "being worked on".
IPCC deputy chair Sarah Green said it will examine how three police forces handled intelligence given to them by the Child Exploitation and Online Protection Centre (CEOP):
There is rightly considerable public concern about how police forces deal with sexual offences involving children.
The IPCC takes this issue seriously and proactively contacted all forces and asked them to review their handling of intelligence to determine the scale of any issues.
Our investigations will examine carefully how intelligence from CEOP was dealt with by these three forces.
Three police forces in Essex, North Yorkshire and North Wales are to be investigated over alleged failures to act on intelligence relating to indecent images of children, the Independent Police Complaints Commission (IPCC) said.