I have a 3640 with multiple ISDN BRI's and DM's. If I dial-in with a MS Client (WinXP or 2K) and cancel the callback then the line disconnects with message "Sending callback information"
The IOS is 12.2.12a
Authentication is via TACACS+ (ACS server authenticating to a NT Domain).
I have another 3640 with a PRI running a lower IOS 12.0.9 and I can cancel callback there from the same client to the same ACS.
Relevant parts of the config...
aaa new-model
aaa authentication login admin local
aaa authentication ppp default group tacacs+
aaa authorization exec admin group tacacs+ local
aaa authorization network default group tacacs+
aaa accounting network default start-stop group tacacs+
interface BRI3/0
no ip address
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no cdp enable
!
interface BRI3/1
no ip address
encapsulation ppp
dialer rotary-group 1
isdn switch-type basic-net3
isdn incoming-voice modem
no cdp enable
interface Dialer1
ip unnumbered Loopback0
encapsulation ppp
no ip mroute-cache
dialer-group 1
peer default ip address pool RAS
compress mppc
no cdp enable
ppp callback accept
ppp authentication pap
ppp multilink
ppp timeout idle 1800
multilink max-links 2
multilink min-links 1
multilink load-threshold 2 either
line 33 44
flush-at-activation
script dialer micaout
script modem-off-hook offhook
script callback callback
modem InOut
modem autoconfigure type mica
transport input telnet
autoselect during-login
autoselect ppp
