Здравствуйте,
Есть AS5350 (IOS 12.3(3) ), модемы nextport, подключенны E1 X2 R2 и ISDN,
конфиг:

version 12.3
service timestamps debug datetime localtime
service timestamps log datetime localtime
service password-encryption
!
hostname AS5350
!
boot-start-marker
boot system flash c5350-is-mz.123-3.bin
no boot startup-test
boot-end-marker
!
enable secret 5 xxxxxxxxxxxxxxxxxxxxx
!
resource-pool disable
!
resource-pool group resource ISDN
range port 1/0 1/59
!
resource-pool group resource V90
range port 2/0 2/59
!
resource-pool profile customer ISDN
limit base-size all
limit overflow-size 0
resource ISDN speech  
dnis group ISDN
resource-pool profile customer V90
limit base-size all
limit overflow-size 0
resource V90 speech  
dnis group V90
clock timezone YER 4
spe country e1-default
!
spe default-firmware spe-firmware-1
aaa new-model
!
!
aaa authentication login default local group radius
aaa authentication ppp default local group radius
aaa authorization network default local group radius
aaa accounting update newinfo
aaa accounting network default start-stop group radius
aaa session-id common
ip subnet-zero
ip cef
ip name-server XXX.XXX.XXX.XXX
ip name-server XXX.XXX.XXX.XXX
!
async-bootp dns-server XXX.XXX.XXX.XXX XXX.XXX.XXX.XXX
isdn switch-type primary-net5
modemcap entry RUN:FD=&F:MSC=s21=3s29=6s53=0s59=4s63=0s64=1
modemcap entry DIS_V90:FD=&F:MSC=s29=1s53=0s63=0s64=3
modemcap entry V90:FD=&F:MSC=s29=6s53=1s63=0s64=0
modemcap entry K56F:MSC=s29=5s64=2
modemcap entry NONE_V90:FD=&F:MSC=s29=1s53=0s63=0s64=3
!
!
!
!
!
!
!
!
no voice hpi capture buffer
no voice hpi capture destination
!
!
!
!
!
!
controller E1 3/0
framing NO-CRC4
ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 0
  country easteurope
timer interdigit incoming 3000
description <<< MFC R2 >>>
!
controller E1 3/1
framing NO-CRC4
pri-group timeslots 1-31
description <<< ISDN PRI >>>
!
controller E1 3/2
framing NO-CRC4
ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 0
  country easteurope
timer interdigit incoming 3000
description <<< MFC R2 >>>
!
controller E1 3/3
framing NO-CRC4
ds0-group 0 timeslots 1-15,17-31 type r2-digital r2-compelled ani
cas-custom 0
  country easteurope
timer interdigit incoming 3000
description <<< MFC R2 >>>
!
!
interface FastEthernet0/0
ip address XXX.XXX.XXX.XXX 255.255.255.240
no ip redirects
no ip unreachables
no ip proxy-arp
ip accounting output-packets
no ip mroute-cache
duplex auto
speed 100
no cdp enable
!
interface FastEthernet0/1
no ip address
no ip mroute-cache
shutdown
duplex auto
speed auto
no cdp enable
!
interface Serial0/0
no ip address
encapsulation frame-relay
no ip mroute-cache
shutdown
clockrate 2000000
frame-relay lmi-type ansi
!
interface Serial0/1
no ip address
no ip mroute-cache
shutdown
clockrate 2000000
no cdp enable
!
interface Serial3/1:15
no ip address
encapsulation ppp
isdn switch-type primary-net5
isdn incoming-voice modem
no cdp enable
!
interface Group-Async0
ip unnumbered FastEthernet0/0
encapsulation ppp
no ip route-cache
ip tcp header-compression
no ip mroute-cache
async mode dedicated
peer default ip address pool DIAL-UP
compress mppc
ppp authentication pap
group-range 1/00 1/29
!
interface Group-Async1
ip unnumbered FastEthernet0/0
encapsulation ppp
ip tcp header-compression
no ip mroute-cache
async mode interactive
peer default ip address pool DIAL-UP
compress mppc
ppp authentication pap
group-range 1/30 1/59
!
interface Group-Async2
ip unnumbered FastEthernet0/0
encapsulation ppp
ip tcp header-compression
no ip mroute-cache
async mode interactive
peer default ip address pool DIAL-UP
compress mppc
ppp authentication pap
group-range 2/00 2/59
!
no ip http server
!
dialer dnis group ISDN
number xxxxxx
call-type cas speech
!
dialer dnis group V90
number xxxxxx
call-type cas speech
no cdp run
!
snmp-server community XXXXXXXX RW 15
snmp-server community XXXXXXXX RO 15
snmp-server trap-source FastEthernet0/0
snmp-server enable traps tty
snmp-server host XXX.XXX.XXX.XXX XXXXXXXX
!
radius-server host XXX.XXX.XXX.XXX auth-port 1645 acct-port 1646
radius-server key 7 02122435C0R5C114541
!
voice-port 3/0:0
compand-type a-law
!
voice-port 3/1:D
!
voice-port 3/2:0
compand-type a-law
!
voice-port 3/3:0
compand-type a-law
!
!
!
!
!
line con 0
logging synchronous
line aux 0
line vty 0
access-class 11 in
exec-timeout 10000 0
line vty 1 4
access-class 11 in
line 1/00 1/59
exec-timeout 0 0
no flush-at-activation
no modem callout
modem Dialin
modem autoconfigure type nextport
autoselect ppp
flowcontrol NONE
line 2/00 2/59
exec-timeout 0 0
no flush-at-activation
no modem callout
modem Dialin
modem autoconfigure type nextport
autoselect ppp
flowcontrol NONE
!
scheduler allocate 10000 400
ntp clock-period 17207506
ntp server 193.63.105.18
!
end

Проблема в следующем, приблизительно 60% пользователей работает по протоколу V90
а остальные подключаются, но либо примерно в течении 1 минуты нет никакой активности, а потом приблизительно 25 секунд идет прием передача, а затем опять замерает,  либо вообще не подключаются.
Замечаются CRC error-ы.

Что не так настроенно.

Если можете помогите.

• AS5350 Проблема с V.90, Parsadanian, 08:35 , 17-Авг-04, (1)  
  • AS5350 Проблема с V.90, Ostapus, 08:52 , 18-Авг-04, (2)  
    • AS5350 Проблема с V.90, Parsadanian, 13:22 , 18-Авг-04, (3)  
      • AS5350 Проблема с V.90, Ostapus, 13:52 , 18-Авг-04, (4)  
        • AS5350 Проблема с V.90, Parsadanian, 10:32 , 19-Авг-04, (5)  
• AS5350 Проблема с V.90, Misak, 09:03 , 20-Авг-04, (6)  
  • AS5350 Проблема с V.90, Parsadanian, 11:43 , 20-Авг-04, (7)  
    • AS5350 Проблема с V.90, Parsadanian, 13:55 , 20-Авг-04, (8)  
      • AS5350 Проблема с V.90, Misak, 19:13 , 20-Авг-04, (9)  
        • AS5350 Проблема с V.90, Parsadanian, 09:19 , 23-Авг-04, (10)  
          • AS5350 Проблема с V.90, Parsadanian, 20:17 , 23-Авг-04, (11)