Lingoliloeng tsa mohloli oa morero oa D-Modem li hatisitsoe, tse sebelisang modem ea software bakeng sa ho hlophisa phetiso ea data ka marang-rang a VoIP ho latela protocol ea SIP. D-Modem e etsa hore ho khonehe ho theha mocha oa puisano holim'a VoIP, e ts'oanang le kamoo li-modem tsa tloaelo tsa ho daela li lumellang data ho fetisoa ka marang-rang a mohala. Likarolo tsa kopo bakeng sa morero li kenyelletsa ho hokela marang-rang a teng a ho daela ntle le ho sebelisa marang-rang a mohala pheletsong e 'ngoe, ho hlophisa mecha ea puisano e patehileng, le ho etsa liteko tsa ts'ireletso ea lits'ebetso tse fumanehang feela ka ho daela. Khoutu ea projeke e ngotsoe ka puo ea C mme e ajoa tlasa laesense ea GPLv2.