We will only accept a solution which will enable us lawful interception of BlackBerry services in the interest of national security, the source told Reuters.
The solution, if they come up with it, will have to go through field trials and satisfy our technical experts, he added.
RIM faces an August 31 deadline to give authorities the means to track and read BlackBerry Enterprise email.
(Reporting by Bappa Majumdar; editing by Malini Menon)
![Madden 25 Running On Xbox One [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_thumbnail/public/2013/05/21/madden-25.JPG "Madden 25 Running On Xbox One [PHOTOS]")
![Xbox Reveal: Call of Duty Ghosts Screenshots [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_thumbnail/public/2013/05/21/call-duty-ghosts_22.JPG "Xbox Reveal: Call of Duty Ghosts Screenshots [PHOTOS]")
![Oklahoma Tornado 2013: Photos And Footage Of The Twister's Devastation [PICTURES, VIDEO]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_thumbnail/public/2013/05/20/oklahoma-tornado_1.png "Oklahoma Tornado 2013: Photos And Footage Of The Twister's Devastation [PICTURES, VIDEO]")
![Singapore Supervisor Slaps Intern To 'Nurture' Him In Viral Clip [VIDEO]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_thumbnail/public/2013/05/21/singapore-supervisor.png "Singapore Supervisor Slaps Intern To 'Nurture' Him In Viral Clip [VIDEO]")
![Fort Worth Texas Tornadoes Claim 6 Lives: Pictures And Videos During The Storm And Its Aftermath [PHOTOS/VIDEO]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_medium/public/2013/05/16/tornado.PNG "Fort Worth Texas Tornadoes Claim 6 Lives: Pictures And Videos During The Storm And Its Aftermath [PHOTOS/VIDEO]")
![Introducing Skywhale: Canberra, Australia’s Controversial $300K Centenary Balloon [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_medium/public/2013/05/14/skywhale.jpeg "Introducing Skywhale: Canberra, Australia’s Controversial $300K Centenary Balloon [PHOTOS]")
![Meet Ahmed Angel: The Greatest Internet Superstar. Ever. [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_medium/public/2013/05/14/ahmed-angel.jpg "Meet Ahmed Angel: The Greatest Internet Superstar. Ever. [PHOTOS]")
![Airbus Shows Off The First A350 XWB, The Boeing 787's Rival [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_multimedia/public/2013/05/13/a350.jpg "Airbus Shows Off The First A350 XWB, The Boeing 787's Rival [PHOTOS]")
![Lisalla Montenegro: Meet Angels Pitcher C.J. Wilson’s New Supermodel Fiancé [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_medium/public/2013/05/10/lisalla-montenegro_3.jpg "Lisalla Montenegro: Meet Angels Pitcher C.J. Wilson’s New Supermodel Fiancé [PHOTOS]")
![Surviving Sandy: The Rockaways Rise From The Ashes Six Months Later [PHOTOS]](http://s1.ibtimes.com/sites/www.ibtimes.com/files/styles/v2_medium/public/2013/05/09/breezy-point_4.JPG "Surviving Sandy: The Rockaways Rise From The Ashes Six Months Later [PHOTOS]")
Like or Follow us for updates on the biggest stories!