soft client
n.β Β«Three of those options, the VoIP, cell and desktop computer phone (a “soft client” in the parlance of geekdom), have the option of picking any area code I want the receiving party to see.Β» ββReally, whatβs so crucial about three new digits?” by Gene Grant Albuquerque Tribune (New Mexico) Aug. 1, 2006. (source: Double-Tongued Dictionary)