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TA904 SIP to PRI to Avaya IP Office

Hello, first time poster and very green to telecom outside of hosted PBX.

We have a customer who has an Avaya IP Office 500 currently connected by a Telco T1/PRI. We are working to replace it with a SIP to PRI connection utilizing the TA904.

Presently we have the SIP trunk connected and the PRI seems to connect when we plug it into the Avaya as we can make outbound calls without issue. However we cannot make any inbound calls, they simply go to fast busy with plenty of debug output. To make things even stranger it randomly worked for 2 inbound calls and we wrote the config and rebooted and it went back to not being able to make Inbound calls again.

Prior to working on the PRI side we set up an FXS port and tested with an Analog phone both inbound and outbound and it worked just fine. The current config is based of the very simplistic example provided by Adtran, our though is the Adtran should leave all call routing, dial plans etc up to the Avaya and simply act as the bridge. I have a feeling it will be something very simple (dial plan/call routing related?) but after many hours/days of trying  a million config changes we are not finding it.

Any help would be greatly appreciated, thanks in advance!

! ADTRAN, Inc. OS version R12.3.2.E

! Boot ROM version 14.04.00

! Platform: Total Access 904 (2nd Gen), part number 4212904L1

! Serial number CFG1545378

!

!

hostname "TA904"

enable password level 2 encrypted xxxxxxxxxx

enable password encrypted xxxxxxxxxx

!

!

!

ip subnet-zero

ip classless

ip default-gateway X.X.X.X

ip routing

!

!

domain-proxy

name-server x.x.x.x y.y.y.y

!      

!

no auto-config

auto-config authname adtran encrypted password xxxxxxxxxx

!

event-history on

no logging forwarding

no logging email

!

service password-encryption

!

username "admin" password encrypted "xxxxxxxxxx"

username "Andrew" password encrypted "xxxxxxxxxx"

!

banner motd #

Unauthorized access strictly prohibited.

#

!

!

no ip firewall alg msn

no ip firewall alg mszone

no ip firewall alg h323

!

!

no dot11ap access-point-control

!

!

ip dhcp pool "Private"

  network 10.10.10.0 255.255.255.0

  netbios-node-type h-node

  default-router 10.10.10.1

!

!

interface eth 0/1

  description Ethernet

  ip address  x.x.x.x  y.y.y.y

  ip address  10.10.10.1  255.255.255.0  secondary

  no shutdown

  media-gateway ip primary

!

!

interface t1 0/1

  no shutdown

!

interface t1 0/2

  tdm-group 1 timeslots 1-24 speed 64

  no shutdown

!

!

interface pri 1

  connect t1 0/2 tdm-group 1

  no shutdown

!

!

interface fxs 0/1

  no shutdown

!

interface fxs 0/2

  no shutdown

!

interface fxs 0/3

  no shutdown

!

interface fxs 0/4

  no shutdown

!

!

isdn-group 1

  connect pri 1

!

!

no tftp server

no tftp server overwrite

http server

http secure-server

no snmp agent

no ip ftp server

no ip scp server

no ip sntp server

!

!

sip

sip udp 5060

no sip tcp

!

!      

!

voice feature-mode network

voice forward-mode network

!

!

voice trunk T01 type sip

  description "To Vitelity"

  sip-server primary sip7.vitelity.net

!

voice trunk T02 type isdn

  description "PRI Out"

  resource-selection circular descending

  connect isdn-group 1

  rtp delay-mode adaptive

!

!

voice grouped-trunk PRI

  trunk T02

  accept $ cost 0

!

!

voice grouped-trunk SIP

  trunk T01

  accept $ cost 0

!

!

line con 0

  login

  password encrypted xxxxxxxxxx

!      

line telnet 0 4

  login

  password encrypted xxxxxxxxxx

  no shutdown

line ssh 0 4

  login local-userlist

  no shutdown

!

!

!

!

!

end

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