Hand on experience on open source contact center solutions(Vicidial, Goautodial,FreePBX and Asterisk) having features of DIDs, IVR, inbound and out bound calls, robo calling, press 1 campaign , Sip trunking, softphones, webcrt, hard phones, currently providing IT services to some of my US based clients, will be available on 24/7.
Regards Rizwan