cannot detect soft-modem on HDA bus

[freak]

I have a laptop (Acer Aspire 5520G) with built soft-modem.

But it is not defined at boot time and not visible in the list "pciconf 
-lv"

Please help. I need use modem to work.

FreeBSD 8.0-CURRENT #0: Sun Jul 20 23:35:32 EEST 2008 
freak at fbook.net:/usr/obj/usr/src/sys/GENERIC  i386

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Best regards, freak.