If Wine approach is undesirable, consider native Linux SIP clients:
mkdir -p ~/apps/microsip
unzip ~/Downloads/MicroSIP-portable-x86.zip -d ~/apps/microsip
export WINEPREFIX="$HOME/.wine-microsip"
wine ~/apps/microsip/microsip.exe
MicroSIP uses Windows audio drivers via Wine. For best results: How To Install Microsip On Linux