<p>Provision of mobile phone signals into Portcullis House has been a long-running problem, made difficult because of the design of the building. In 2009 PICT worked with T-Mobile to install equipment to provide a mobile signal inside the building. This was designed to allow use by other mobile operators and T-Mobile and Orange users adopted this solution. In 2011 Vodaphone's service was added.</p><p>PICT is drafting a contract with O2 for use of the same equipment and an O2 signal should also be available in spring 2014. Three has also expressed an interest in hosting its service in the same way.</p>