Редактирование: Stefan Ćertić (раздел)

== Software projects ==
Back in 2015, Ćertić started e164enum service allowing [[ENUM]] search of international mobile prefix database using [[Telephone number mapping]] of more then half million network prefixes around the world, available online through e164enum.eu or through API free of charge. This is currently the only free database available online.<ref>{{cite web|title=e164enum.eu|url=http://e164enum.eu|website=e164enum.eu|date=21 February 2017|last1=Web|first1=Source}}</ref> He published open source code included in Perl Distribution allowing SMS communication within Linux systems using TCP.<ref>{{cite web|title=CPAN|url=http://search.cpan.org/dist/Net-SMS-CSNetworks/lib/Net/SMS/CSNetworks.pm|website=CPAN|date=21 February 2017|last1=Web|first1=Source}}</ref> He was also an author of various linux SMS implementation in C as well as one of two available open source [[SS7]] [[SIGTRAN]] implementation for Linux besides [[Mobicents]].<ref>{{cite web|title=certic.info Software|url=https://www.certic.info/software.php|website=certic.info|date=21 February 2017|last1=Web|first1=Source}}</ref> He published an improved version of Stanford DNS server, adding multithreading capability and [[NAPTR]] support that provide turn key solution for Enum Numbering Queries.<ref>{{cite web|title=GitHub|url=https://github.com/stefancertic/packaging-libstanford-dnsserver-perl|website=GitHub|date=21 February 2017|last1=Web|first1=Source}}</ref> Stefan is volunteer<ref>{{cite web|title=NTP Pool Volunteers|url=http://support.ntp.org/bin/view/Servers/PoolVolunteers?cover=print|website=NTP Pool|date=22 February 2017|last1=Web|first1=Source}}</ref> of [[NTP pool]], an open Network Time Initiative donating two servers (London and Belgrade).<ref>{{cite web|title=NTP pool Servers List|url=http://support.ntp.org/bin/view/Servers/PublicTimeServer001315?cover=print|website=NTP Pool Servers List|date=22 February 2017|last1=Web|first1=Source}}</ref> Stefan is also member<ref>{{cite web|title=Educase|url=https://members.educause.edu/stefan-certic|website=Educause|date=22 February 2017|last1=Web|first1=Source}}</ref> of [[Educause]], a nonprofit association for improving education, representing [[University College of Engineering, Osmania University]] as Research Director.