CTI , Computer Telephny Integration for Grandstream , from the website , we can make all phone operations (Call , Reject, Transfier , etc.).
20 freelancers are bidding on average $623 for this job
i am a lead .Net software engineer and responsible for creating a web and desktop applications using different languages and technologies if u r interested just send me a message thank you and good luck
i have worked on a call waiting system for cisco ip phones using java jtapi ,, i also worked on a recording system for CUCM , so i know a lot about voice over ip technologies and also CTI