[asterisk-users] asterisk > cisco gateway > westell > isdx

[Damian Turburville]

Hi,
I am hoping someone can help me with a problem I am having.
I am trying to setup a connection from an Elastix 2 server to a Siemens isdx 
PBX. The setup is as follows

Elastix 2
    *sip trunk*
Cisco 2621XM router with 2 E1 voice interfaces
    *QSIG*
Westell IQ2000 protocol convertor
    *DPNSS*
Siemens ISDX

So the Elastix box has a SIP trunk to the cisco router which then talks QSIG to 
the Westell which converts it to DPNSS to talk to the ISDX.
I have managed to make a call from a phone on Elastix to a phone on the ISDX but 
it drops after about 3 seconds, every time. Would anyone have any idea why this 
is? 

Here is the setup I have on Elastix and the Cisco router

Elastix SIP trunk PEER details
type=friend
qualify=no
nat=no
insecure=very
host=10.132.41.13
dtmfmode=rfc2833
context=from-internal
canreinvite=yes
disallow=all
allow=ulaw

relevant Cisco config
version 12.4
service timestamps debug datetime msec
service timestamps log datetime msec
service password-encryption
!
boot-start-marker
boot-end-marker
!
no network-clock-participate slot 1
no network-clock-participate wic 0
ip cef
!
!
no ip domain lookup
isdn switch-type primary-qsig
voice-card 1
!
!
voice rtp send-recv
!
voice service voip
 allow-connections h323 to h323
 allow-connections h323 to sip
 allow-connections sip to h323
 allow-connections sip to sip
 fax protocol t38 ls-redundancy 0 hs-redundancy 0 fallback cisco
 sip
  bind control source-interface FastEthernet0/0
  bind media source-interface FastEthernet0/0
!
!
voice class codec 1
 codec preference 1 g711ulaw
 codec preference 2 g729r8 bytes 40
!
!
controller E1 1/0
!
controller E1 1/1
 pri-group timeslots 1-31
!
!
class-map match-all FAX
  description Match T.38 Fax
 match access-group name FAX
!
interface FastEthernet0/0
 ip address 10.132.41.13 255.255.255.0
 no ip mroute-cache
 speed 100
 full-duplex
!
interface FastEthernet0/1
 no ip address
 duplex auto
 speed auto
!
interface Serial1/1:15
 no ip address
 encapsulation hdlc
 no logging event link-status
 isdn switch-type primary-qsig
 isdn overlap-receiving
 isdn incoming-voice voice
 no cdp enable
!
ip forward-protocol nd
ip route 0.0.0.0 0.0.0.0 10.132.41.1
!
ip http server
!
control-plane
!
voice-port 1/1:15
!
!
dial-peer voice 786 voip
 huntstop
 destination-pattern 56...
 progress_ind setup enable 3
 voice-class codec 1
 session protocol sipv2
 session target sip-server
 dtmf-relay rtp-nte
 no vad
!
dial-peer voice 2 pots
 description QSIG Link to PABX via Westell
 destination-pattern 2....
 progress_ind setup enable 3
 progress_ind alert enable 8
 direct-inward-dial
 port 1/1:15
 forward-digits all
!
dial-peer voice 3 pots
 description Featurenet 7xx routing
 huntstop
 destination-pattern 7T
 progress_ind setup enable 3
 progress_ind alert enable 8
 incoming called-number 786....
 no digit-strip
 direct-inward-dial
 forward-digits all
!
gateway
!
sip-ua
 registrar ipv4:10.133.40.50 expires 3600
 sip-server ipv4:10.133.40.50

Any help would be greatly appreciated
Thanks,
DT


      
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