ارتباط روتر 2800 با الستیکس

سلام دوستان روتر 2800 رو بصورت زیر کانفیگ کردم اما ارتباط با الستیکس برقرار نمیشه
البته روی الستیکس نیز روتر رو تعری کردم
دوستان اگه مشکلی در کانفیگم هست بگن ممنون میشم
Router#sh run
Building configuration...

Current configuration : 2926 bytes
!
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
no service password-encryption
!
hostname Router
!
boot-start-marker
boot-end-marker
!
enable secret 5 $1$XR2s$SWiSEW39jKC2dt5DY.
!
no aaa new-model
network-clock-participate wic 0
!
!
ip cef
!
!
ip auth-proxy max-nodata-conns 3
ip admission max-nodata-conns 3
!
isdn switch-type primary-net5
!
!
trunk group 1
!
voice-card 0
no dspfarm
!
!
!
!
voice class codec 1
codec preference 1 g711ulaw
codec preference 2 g729br8
codec preference 3 g729r8
codec preference 4 g723r63
codec preference 5 g723ar53
codec preference 6 g723r53
codec preference 7 g723ar63
!
!
!
!
!
!
!
!
voice translation-rule 1
rule 1 /^24511$/ //
rule 2 /^$/ //
!
!
voice translation-profile incoming
translate called 1
!
!
!
!
!
!
controller E1 0/0/0
framing NO-CRC4
pri-group timeslots 1-31
!
controller E1 0/0/1
framing NO-CRC4
pri-group timeslots 1-31
!
!
!
!
!
!
interface FastEthernet0/0
ip address 192.168.10.250 255.255.255.0
duplex auto
speed auto
!
interface FastEthernet0/1
no ip address
shutdown
duplex auto
speed auto
!
interface Serial0/0/0:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
!
interface Serial0/0/1:15
no ip address
encapsulation hdlc
isdn switch-type primary-net5
isdn incoming-voice voice
no cdp enable
!
interface Group-Async0
physical-layer async
no ip address
encapsulation slip
no group-range
!
interface Group-Async1
physical-layer async
no ip address
encapsulation slip
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 192.168.10.254
!
!
ip http server
no ip http secure-server
!
!
!
!
control-plane
!
!
!
voice-port 0/0/0:15
translation-profile incoming incoming
disc_pi_off
cptone DE
bearer-cap Speech
!
voice-port 0/0/1:15
translation-profile incoming incoming
disc_pi_off
cptone DE
bearer-cap Speech
!
!
!
!
!
dial-peer voice 10 pots
trunkgroup 1
tone ringback alert-no-PI
destination-pattern .T
supplementary-service pass-through
direct-inward-dial
forward-digits all
!
dial-peer voice 20 pots
trunkgroup 1
tone ringback alert-no-PI
destination-pattern .T
supplementary-service pass-through
direct-inward-dial
forward-digits all
!
dial-peer voice 100 voip
destination-pattern [1-9]...
session protocol sipv2
session target ipv4:192.168.10.251
dtmf-relay rtp-nte
codec g711alaw
fax rate 14400
fax protocol pass-through g711alaw
no vad
!
dial-peer voice 200 voip
destination-pattern [1-9]....
session protocol sipv2
session target ipv4:192.168.10.251
dtmf-relay rtp-nte
codec g711alaw
fax rate 14400
fax protocol pass-through g711alaw
no vad
!
sip-ua
retry invite 3
retry response 3
retry bye 3
retry cancel 3
timers trying 1000
sip-server ipv4:192.168.10.251:5060
!
!
!
!
line con 0
line aux 0
line vty 0 4
password *********
login
!
scheduler allocate 20000 1000
!
end