[Wolves] Softphones for Linux

[Ade]

Does anyone know of a good soft phone for Linux? My place are going to
be looking into askerisk in the new year and I want to be able to show
them a softphone on Linux.

Ive found one over at http://www.lipz4.com/ which is an RPM. Also the
guys over at http://www.xten.com are promising a Linux version of
their phone which is cool (we have tried the Win version).

Just wondered is anyone knew of anything else thats available

Thanks,  On call Bald