Hi, I recently upgraded to IOS 12.3(20) a 28XX router used for RAS & Callback.
Before the upgrade the router was correcly doing the callback. After the upgrade (to deal with a issue of not recongnizing enough digits), the router no longer performs the callback.
This is the current (relevant part of the) configuration:
!
chat-script offhook "" "ATH1" OK
chat-script callback ABORT ERROR ABORT BUSY "" "ATZ" OK "ATDT \T" TIMEOUT 60 CONNECT \c
!
username xxxx callback-dialstring "" password <removed>
!
!
interface Serial2/0:15
ip unnumbered FastEthernet0/0
encapsulation ppp
dialer-group 1
isdn switch-type primary-5ess
isdn incoming-voice modem
fair-queue
!
interface Group-Async1
ip unnumbered FastEthernet0/0
encapsulation ppp
autodetect encapsulation ppp
async mode interactive
peer default ip address pool XXXX
ppp callback accept
ppp authentication pap
group-range 33 62
hold-queue 10 in
!
!
line 33 62
exec-timeout 0 0
no flush-at-activation
script modem-off-hook offhook
script callback callback
modem InOut
transport preferred v120
transport input all
transport output none
autoselect ppp
!
The client connects succesfully, passes the Callback number, the router hangs up the call and remains idle aftewards.
I already tried with callback forced-wait 5, and no results.
The only strange thing is a line in the debug that reads:
*Mar 12 17:51:13.574: TTY39 callback unavailable on line for PPP Callback
In another similar debug, i got a line that reads:
Mar 12 18:46:59.429: TTY49 Callback process fail - modemcheck status=10081
I?ll attach a debug to this message
