PCCARD Modems

I am having problems getting any PCCARD modem to work properly with FreeBSD (4.6-PRERELEASE or 4.5-stable a few days ago).  They all see to exhibit the same symptom, they are recognized, and will answer to AT commands, but all indicated NO DIALTONE.

 At boot time the Toshiba Portege 3010CT indicates the following:

Copyright (c) 1992-2002 The FreeBSD Project.
Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
        The Regents of the University of California. All rights reserved.
FreeBSD 4.6-PRERELEASE #2: Sun May  5 10:06:21 EDT 2002
    [email protected]:/usr/src/sys/compile/STEVE3010
Timecounter "i8254"  frequency 1193182 Hz
CPU: Pentium/P55C (quarter-micron) (266.62-MHz 586-class CPU)
  Origin = "GenuineIntel"  Id = 0x582  Stepping = 2
  Features=0x8001bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8,MMX>
real memory  = 100728832 (98368K bytes)
avail memory = 92704768 (90532K bytes)
Preloaded elf kernel "kernel" at 0xc051d000.
Intel Pentium detected, installing workaround for F00F bug
md0: Malloc disk
Using $PIR table, 4 entries at 0xc00f9070
npx0: <math processor> on motherboard
npx0: INT 16 interface
pcib0: <Host to PCI bridge> on motherboard
pci0: <PCI bus> on pcib0
pci0: <NeoMagic MagicGraph 128XD SVGA controller> at 4.0 irq 11
ohci0: <NEC uPD 9210 USB controller> mem 0xffaff000-0xffafffff irq 11 at device 11.0 on pci0
usb0: OHCI version 1.0
usb0: <NEC uPD 9210 USB controller> on ohci0
usb0: USB revision 1.0
uhub0: NEC OHCI root hub, class 9/0, rev 1.00/1.00, addr 1
uhub0: 2 ports with 2 removable, self powered
chip1: <Toshiba Fast Infra Red controller> port 0xffc0-0xffdf irq 11 at device 17.0 on pci0
pci_cfgintr_virgin: using routable interrupt 3
pci_cfgintr: 0:19 INTA routed to irq 3
pcic0: <Toshiba ToPIC97 PCI-CardBus Bridge> irq 3 at device 19.0 on pci0
pcic0: PCI Memory allocated: 0x44000000
pccard0: <PC Card bus (classic)> on pcic0
pci_cfgintr_search: linked (1) to configured irq 3 at 0:19:0
pci_cfgintr: 0:19 INTB routed to irq 3
pcic1: <Toshiba ToPIC97 PCI-CardBus Bridge> irq 3 at device 19.1 on pci0
pcic1: PCI Memory allocated: 0x44001000
pccard1: <PC Card bus (classic)> on pcic1
isa0: <ISA bus> on motherboard
orm0: <Option ROM> at iomem 0xc0000-0xcbfff on isa0
fdc0: <NEC 765 or clone> at port 0x3f0-0x3f5,0x3f7 irq 6 drq 2 on isa0
ata0 at port 0x1f0-0x1f7,0x3f6 irq 14 on isa0
ata1 at port 0x170-0x177,0x376 irq 15 on isa0
atkbdc0: <Keyboard controller (i8042)> at port 0x60,0x64 on isa0
atkbd0: <AT Keyboard> flags 0x1 irq 1 on atkbdc0
kbd0 at atkbd0
psm0: <PS/2 Mouse> irq 12 on atkbdc0
psm0: model Generic PS/2 mouse, device ID 0
vga0: <Generic ISA VGA> at port 0x3c0-0x3df iomem 0xa0000-0xbffff on isa0
sc0: <System console> at flags 0x100 on isa0
sc0: VGA <16 virtual consoles, flags=0x300>
sio0 at port 0x3f8-0x3ff irq 4 flags 0x10 on isa0
sio0: type 16550A
sio1: configured irq 3 not in bitmap of probed irqs 0
ppc0: <Parallel port> at port 0x378-0x37f irq 7 on isa0
ppc0: Generic chipset (NIBBLE-only) in COMPATIBLE mode
ppi0: <Parallel I/O> on ppbus0
plip0: <PLIP network interface> on ppbus0
lpt0: <Printer> on ppbus0
lpt0: Interrupt-driven port
pcm0: <OPL3-SAx (YMF719)> at port 0x530-0x537,0x370-0x371,0xf8c-0xf94,0xe0e irq 5 drq 1 flags 0xc115 on isa0
ad0: 28615MB <IC25N030ATDA04-0> [58140/16/63] at ata0-master BIOSPIO
Mounting root from ufs:/dev/ad0s2a
WARNING: / was not properly dismounted
pccard: card inserted, slot 0
pccard: card inserted, slot 0
ed1 at port 0x300-0x31f irq 3 flags 0x30000 slot 0 on pccard0
ed1: address 00:40:f4:2a:9a:17, type NE2000 (16 bit) 
$ 


Insertion of the PCCARD modem will result in:

pccard: card inserted, slot 1
sio4 at port 0x2f8-0x2ff irq 3 flags 0x40000 slot 1 on pccard1
sio4: type 16550A
sio4: unable to activate interrupt in fast mode - using normal mode
$ 

I would appreciate some assistance in correcting this problem.

Thank you,
Steve