Cisco-E1

AAA Configuration:
aaa new-model
 aaa authentication ppp default group radius
 aaa authorization network default group radius none
 aaa accounting update periodic 1
 aaa accounting network default start-stop group radius
 aaa accounting delay-start

RADIUS CONFIGURATION:
 configure terminal
  radius-server source-ports extended
  radius-server host 1.1.1.1 auth-port 1812 acct-port 1813
  radius-server key 0 123
  radius-server timeout 5
  radius-server retransmit 3
  radius-server vsa send accounting 
  radius-server vsa send authentication

LINE E1 CONFIGURATION:
 controller E1 0
  framing NO-CRC4
  clock source line primary
  pri-group timeslots 1-31

interface Serial0:15

ip unnumbered FastEthernet0
encapsulation ppp
isdn switch-type primary-net5
isdn incoming-voice modem
ppp authentication pap

interface Group-Async1

ip unnumbered FastEthernet0
encapsulation ppp
no ip mroute-cache
async mode dedicated
peer default ip address pool As
ppp authentication pap
group-range 1 240

line 1 240

session-timeout 10
no flush-at-activation
modem InOut
modem autoconfigure discovery
transport input all
transport output pad telnet rlogin udptn
escape-character NONE
autoselect during-login
autoselect ppp
autohangup