I have a customer who needs to set up a p2p Adtran 908E with 2 T1's on each side. 2 T1's - Ethernet - Ethernet - 2 T1's. Basically wants to use them as media converters. I was thinking of setting them up as sip gateways pointed at each other but they can't make the T1's PRI's. Maybe I am over complicating things but here is the config of what I have. This needs to traverse over the eth 0/2 interface, which is able to ping across to each other. I assume I need some type of trunk between the two but I'm not sure how to set that up.
interface eth 0/1
description MGMT
ip address 10.1.18.7 255.255.255.0
no shutdown
!
!
interface eth 0/2
description Lan
ip address 172.16.1.251 255.255.255.0
no shutdown
interface t1 0/1
framing d4
coding ami
tdm-group 1 timeslots 1-24 speed 64
no shutdown
!
interface t1 0/2
framing d4
coding ami
tdm-group 1 timeslots 1-24 speed 64
no shutdown
timing-source t1 0/1
ip route 0.0.0.0 0.0.0.0 10.1.18.1