The SUNW,DBRIe ISDN/audio stuff is found in the

	SPARCstation LX (50 MHz microSPARC I)
	SPARCstation 10 (Mbus CPU)
	SPARCstation 20 (Mbus CPU)

The ISDN S/T interface is exposed on the LX and the 10, but not the 
20, and those two models use the funny external Sun speakerbox for 
audio I/O.

There is also an Sbus DBRIe card that you can occasionally find on eBay.

	Erik <fair@clock.org>