Omar A. Mohammad*. Design an advanced video/voice conferencing system by using API and TAPI telephony to transfer video/voice throw networks and voice throw analog telephone line. alyj [Internet]. 2026 May 5 [cited 2026 Jul. 28];(2011 المجلد ، العدد عدد خاص بالمؤتمر):263-82. Available from: https://journal.al-yarmok.edu.iq/index.php/alyj/article/view/1771