مشکل با AS-5350

[left]دوستان عزیز سلام[/left]
من عضو جدید می باشم اما لازم به ذکر است که بیشتر مطالب مربوط به مشکلم را که دوستان مطرح نموده اند مطالعه نموده ام ولی با این حال تا کنون موفق به حل مشکلم نگردیده ام.
و اما مشکل:
ما در شبکه خودمان از یک روتر as5350 به عنوان voice over ip gateway استفاده نموده ایم و یک خط E1 جهت استفاده مشترکینمان با استفاده از ip phone از شرکت مخابرات اجاره کرده ایم.
لازم به ذکر است که ورژن IOS روتر 12.3 و از call manager 4.1 استفاده نموده ایم.
و اما مشکلی که بوجود آمده اینست که همزمان فقط یکی از خطوط E1 مشغول می شود و اگر همزمان دو یوزر بخواهند از E1 استفاده نمایند امکانپذیر نخواهد بود.
و اما config روتر :

Using 6919 out of 520184 bytes
!
! Last configuration change at 05:29:17 UTC Wed Aug 3 2005
! NVRAM config last updated at 15:25:09 UTC Wed Aug 3 2005
!
version 12.3
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname VOIP-GW-00
!
boot-start-marker
no boot startup-test
boot-end-marker
!

!

!
resource-pool disable
spe default-firmware spe-firmware-1
--More--  aaa new-model
!
!
aaa authentication login default line
aaa session-id common
ip subnet-zero
no ip source-route
ip cef
no ip domain lookup
ip host VOIP-CM-00 10.10.13.6
!
isdn switch-type primary-net5
!
!
!
!
!
!
!
!
no voice hpi capture buffer
no voice hpi capture destination
!
--More--  !
!
fax interface-type fax-mail
!
!
!
controller E1 3/0
pri-group timeslots 1-31
!
controller E1 3/1
shutdown
pri-group timeslots 1-31
!
!
interface Loopback0
ip address 10.6.0.1 255.255.255.255
!
interface Loopback1
ip address 10.6.1.1 255.255.255.0
!
interface FastEthernet0/0
ip address 10.10.10.130 255.255.255.0
duplex full
--More--   speed 100
!
interface FastEthernet0/1
ip address 10.10.14.5 255.255.255.0 secondary
ip address 10.10.13.5 255.255.255.0
duplex full
speed 100
!
interface Serial0/0
no ip address
no ip route-cache cef
shutdown
clockrate 2000000
!
interface Serial0/1
no ip address
no ip route-cache cef
shutdown
clockrate 2000000
!
interface Serial3/0:15
no ip address
isdn switch-type primary-net5
--More--   isdn overlap-receiving
isdn incoming-voice modem
isdn send-alerting
isdn bchan-number-order ascending
isdn sending-complete
no cdp enable
!
interface Serial3/1:15
no ip address
shutdown
isdn switch-type primary-net5
isdn overlap-receiving
isdn incoming-voice modem
isdn send-alerting
isdn bchan-number-order ascending
isdn sending-complete
no cdp enable
!
interface Async1/00
no ip address
!
interface Async1/01
no ip address
--More--  !
interface Async1/02
no ip address
!
interface Async1/03
no ip address
!
interface Async1/04
no ip address
!
interface Async1/05
no ip address
!
interface Async1/06
no ip address
!
interface Async1/07
no ip address
!
interface Async1/08
no ip address
!
interface Async1/09
--More--   no ip address
!
interface Async1/10
no ip address
!
interface Async1/11
no ip address
!
interface Async1/12
no ip address
!
interface Async1/13
no ip address
!
interface Async1/14
no ip address
!
interface Async1/15
no ip address
!
interface Async1/16
no ip address
!
--More--  interface Async1/17
no ip address
!
interface Async1/18
no ip address
!
interface Async1/19
no ip address
!
interface Async1/20
no ip address
!
interface Async1/21
no ip address
!
interface Async1/22
no ip address
!
interface Async1/23
no ip address
!
interface Async1/24
no ip address
--More--  !
interface Async1/25
no ip address
!
interface Async1/26
no ip address
!
interface Async1/27
no ip address
!
interface Async1/28
no ip address
!
interface Async1/29
no ip address
!
interface Async1/30
no ip address
!
interface Async1/31
no ip address
!
interface Async1/32
--More--   no ip address
!
interface Async1/33
no ip address
!
interface Async1/34
no ip address
!
interface Async1/35
no ip address
!
interface Async1/36
no ip address
!
interface Async1/37
no ip address
!
interface Async1/38
no ip address
!
interface Async1/39
no ip address
!
--More--  interface Async1/40
no ip address
!
interface Async1/41
no ip address
!
interface Async1/42
no ip address
!
interface Async1/43
no ip address
!
interface Async1/44
no ip address
!
interface Async1/45
no ip address
!
interface Async1/46
no ip address
!
interface Async1/47
no ip address
--More--  !
interface Async1/48
no ip address
!
interface Async1/49
no ip address
!
interface Async1/50
no ip address
!
interface Async1/51
no ip address
!
interface Async1/52
no ip address
!
interface Async1/53
no ip address
!
interface Async1/54
no ip address
!
interface Async1/55
--More--   no ip address
!
interface Async1/56
no ip address
!
interface Async1/57
no ip address
!
interface Async1/58
no ip address
!
interface Async1/59
no ip address
!
interface Group-Async0
no ip address
no group-range
!
ip classless
ip route 0.0.0.0 0.0.0.0 10.10.13.4
ip route 10.0.0.0 255.255.0.0 10.10.13.4
ip route 10.11.0.0 255.255.0.0 10.10.13.4
ip route 131.147.32.0 255.255.240.0 10.10.10.254
--More--  ip http server
!
!
dialer-list 1 protocol ip permit
!
snmp-server location VOIP-GW-00_V0_3.txt 02.03.2005 V 0.3
snmp-server contact Shiraz Customer Support
snmp-server enable traps tty
snmp-server enable traps config
snmp-server enable traps entity
snmp-server enable traps envmon
snmp-server enable traps syslog
!
!
voice-port 3/0:D
echo-cancel coverage 64
cptone DE
!
voice-port 3/1:D
echo-cancel coverage 64
cptone DE
!
!
--More--  !
dial-peer voice 300 pots
destination-pattern 300...
direct-inward-dial
!
dial-peer voice 310 pots
destination-pattern 310...
direct-inward-dial
!
dial-peer voice 100 pots
tone ringback alert-no-PI
destination-pattern 1...
progress_ind setup enable 3
progress_ind alert enable 8
no digit-strip
direct-inward-dial
port 3/0:D
forward-digits all
!
dial-peer voice 9 voip
destination-pattern 9....
progress_ind setup enable 1
session target ipv4:10.10.13.6
--More--  !
dial-peer voice 101 pots
tone ringback alert-no-PI
destination-pattern 0[2-9].......
progress_ind setup enable 3
progress_ind alert enable 8
no digit-strip
direct-inward-dial
port 3/0:D
forward-digits 8
!
dial-peer voice 8144 voip
destination-pattern 4[2-4]..
progress_ind setup enable 1
session target ipv4:10.10.13.6
!
dial-peer voice 9997 pots
tone ringback alert-no-PI
destination-pattern 00..........
progress_ind setup enable 3
progress_ind alert enable 8
no digit-strip
direct-inward-dial
--More--   port 3/0:D
forward-digits 11
!
dial-peer voice 102 pots
tone ringback alert-no-PI
destination-pattern 01..
progress_ind setup enable 3
progress_ind alert enable 8
no digit-strip
direct-inward-dial
port 3/0:D
forward-digits 3
!
!
gateway
!
banner login ^CC * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
* This system is the property of this corporation, and is intended for the *
* use of authorized users only. All activities of individuals using this *
* computing system without authority, or in excess of their authority, are *
* monitored and recorded by system personnel. If any such monitoring *
* reveals possible evidence of criminal activity, system personnel may *
--More--   * provide such evidence to law enforcement officials. *
* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
^C
!
line con 0
password terminal
logging synchronous
line aux 0
line vty 0 4
exec-timeout 0 0
password terminal
transport input telnet
line 1/00 1/59
modem InOut
!
scheduler allocate 10000 400
ntp clock-period 17179828
ntp server 10.10.10.30 version 2 prefer
ntp server 10.10.10.31 version 2 prefer
!
end