<ul><li><a href=http://www.moit.gov.pk/SiteImage/Misc/files/Pakistan%20telecom%20rules.pdf target=_blank>Telecommunication Rules(Section 13, Pakistan Telecommunication Rules, S.R.O. 847 (I)/2000. (2 November 2000))</a></li><li><a href=https://www.pta.gov.pk/assets/media/interconnection-guidelines-2004.pdf target=_blank>Interconnection Guidelines(Article 5.1, Interconnection Guidelines (2004))</a></li></ul>