CTI , Computer Telephny Integration for Grandstream , from the website , we can make all phone operations (Call , Reject, Transfier , etc.).
22 freelancers are bidding on average $617 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
Hi,dear. Thank you for your interest. I've just checked your project report,I'm able to perform this task with my developer team.I look forward to your proposal...