PCで発信者を識別
Visicron Systems, Inc.
Google
いろいろなユーザーと同時に会話
Nicolas Bruley
Nico Cuppen
BearWare.dk
RKS Software
Damien Sandras
Raketu Communications Inc.
David Tahir
SkypeSync
ADPHONE ApS
PrettyMay Team
DonationCoder.com
Freebird Team
doubleTwist Corporation
SIPphone
Finarea
Metalink Ltd.