CBWFQ and PPP Multilink

Hi all,
I have tried to configure CBWFQ and PPP Multilink on an ISDN BRI interface
with DDR. The dialer load-threshold is set to 1 so that both b-channels of the BRI interface are connected when the link comes up.
I need a traffic class with a minmum of 80Kbit/s on this link, but largest bandwidth I'm allowed to configure is 48Kbit/s .
I have tried it directly on the BRI interface and with a Dialer interface.
Both the same effect. When I configure the policy-map into a Dialer interface the policy is also configure to the attached physical links and there the smallest availabe bandwidth is 64k regardless of how many links are configured for multilink.
The configured bandwidth on the BRI is also set to 128k.
So, does anyone know a trick to configure a class with 80k on a DDR/PPP multilink connection which persists of several ISDN b-channels.
Thanks for twist your minds. :-))
Udo

Try giving the required bandwidth in percentage
I think this URL explains a problem that looks similair to yours, hope this helps.
http://www.cisco.com/en/US/tech/tk543/tk544/technologies_tech_note09186a0080094ad2

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    With the phone connected to POTS2 and not signed into callbridge, I
    can pickup the handset and get a dial tone. I then sign into
    callbridge which takes the phone (via the serial cable) and connects
    it to a server (over Ethernet) here in our office in Seattle. This
    succeeds, however when we then go off hook while signed into
    callbridge, we don't get a dial tone.
    I should step back for a second and state then when not signed into
    CB, and pick up the phone, we'll see the router release BRI0:2 and
    give it a voice (dial tone) signal. When signed into CB, this does
    not happen. We are also seeing the error below:
    ISDN BRI0: isdn_is_bchannel_available: No Free B-channels
    I've got ISDN Events and q931 debugging on and am not seeing anything beside the error above that would point to a problem. Cisco has a 20 page debug all that they are going through to search for an answer.
    Any chance that anyone has worked with this before?
    Thanks,
    James

    I would say that this is because the router is connected over 1 b channel to your seattle office and then when you log in with your callbridge you are using the second b channel so when you goto use the phone the router simply has no more b channels to use to carry your phone call which is why you get no dial tone.As BRI ONLY HAS 2*64Kbits b channels and 16Kbits d channel(signalling)

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