skype on a CentOS 5 brandz zone on OpenSolaris Build 118

On my OpenSolaris Build 118 installation, I have a CentOS 5 brandz running.

CentOS5 was installed on an other host and used like described for the brandz.
The 2.6Kernel template for Zones is here. On this page is also the description how to
create the tar Archive for installing.

Today I've upgraded skype 1.4 to ( static version )

Seems to work, but no sound, because of the Boomer-Audio-Framework.
When starting skype in the brandz-Zone there is no sound from the zone and from the host!