ISDN PRI (t1/04) to adtran 924e to t1/03

[sm8651]

Hi,

I am trying to setup a reverse setup by taking an existing PRI from the existing carrier, plugging it into t1/04 and plug in our PBX PRI to t1/03, and all calls should go in and out using the existing PRI on T1/04.

Can anyone share details or a config how to set it up.

[Anonymous]

I just did a similar setup but had to use port t1 0/1 as the user roll to the provider PRI.

!
interface t1 0/1
description PSTN PRI #1
tdm-group 1 timeslots 1-24 speed 64
no shutdown
!!
interface t1 0/3
description Mitel/ShoreTel T1k
tdm-group 3 timeslots 1-24 speed 64
no shutdown
!

!
interface pri 1
role user
isdn name-delivery setup
connect t1 0/1 tdm-group 1
no shutdown
!

!
interface pri 3
isdn name-delivery setup
connect t1 0/3 tdm-group 3
no shutdown
!

!
isdn-group 1
connect pri 1
!
isdn-group 3
connect pri 3
!

!
timing-source t1 0/1

!
voice trunk T08 type isdn
description "PSTN PRI #1"
resource-selection linear ascending
connect isdn-group 1
modem-passthrough
rtp delay-mode adaptive
codec-list G711
!
voice trunk T15 type isdn
description "Mitel/Shoretel PRI"
resource-selection circular descending
connect isdn-group 3
no early-cut-through
modem-passthrough
rtp delay-mode adaptive
codec-list G711
!

!
voice grouped-trunk PSTN_PRI
trunk T08
accept $ cost 0

!deny all other trunks
!deny all other ani
!

!
voice grouped-trunk MITEL-SHORETEL-PRI
trunk T15

accept $ cost 0

!

[jayh]

Set up two ISDN trunks, assign T1 0/4 to one and T1 0/3 to the other. Set ISDN role network on the PRI connected to the PBX and role user on the one connected to the carrier. Set the timing source to the T1 from the carrier and internal as secondary. Create voice grouped-trunks on each. On the grouped-trunk to the PBX specify the digit patterns of the extensions. On the one to the carrier accept everything or prune to avoid international, 1-900, etc as needed.

That's the high level overview. Specific configuration really depends on the specifics of your setup. Things like switch type, number of digits PBX accepts, caller-ID tuning, etc.

[sm8651]

Thanks @Anonymous and @jayh