Sorry for the lack of detail, yes the remote OBi's AA. I also tried to dial directly 2**82654321 with the same results.
Here are the settings in the OBis:
Remote OBi
AA1 Digit Map: ([1-9]x?*@@.|[1-9]|[1-9][0-9]|<00:$1>|0|**1(Msp1)|**2(Msp2)|**8(Mli)|**9(Mpp)|(Mpli))
Outbound Route: {([1-9]x?*@@.):pp},{0:ph},{(<**1:>(Msp1)):sp1},{(<**2:>(Msp2)):sp2},{(<**8:>(Mli)):li},{(<**9:>(Mpp)):pp},{(Mpli):pli}
ObiTalk Service InboundCallRoute: {(Mcot)>(<*1:>(Msp1)),(Mcot)>(<**1:>(Msp1)):sp1},{(Mcot)>(<*2:>(Msp2)),(Mcot)>(<**2:>(Msp2)):sp2}, {(Mcot)>(<*8:>(Mli)),(Mcot)>(<**8:>(Mli)):li},{(Mcot)>(<*9:>(Mpp)),(Mcot)>(<**9:>(Mpp)):pp}, {(Mcot)>(Mpli):pli},{(Mcot):aa},{ph}
Local OBi:
AA Digi Map: ([1-9]x?*@@.|[1-9]|[1-9][0-9]|<00:$1>|0|**1(Msp1)|**2(Msp2)|**8(Mli)|**9(Mpp)|(Mpli))
Outbound Route: {([1-9]x?*@@.):pp},{0:ph},{(<**1:>(Msp1)):sp1},{(<**2:>(Msp2)):sp2},{(<**8:>(Mli)):li},{(<**9:>(Mpp)):pp},{(Mpli):pli}
ObiTalk Service InboundCallRoute: {(Mcot)>(<*1:>(Msp1)),(Mcot)>(<**1:>(Msp1)):sp1},{(Mcot)>(<*2:>(Msp2)),(Mcot)>(<**2:>(Msp2)):sp2}, {(Mcot)>(<*8:>(Mli)),(Mcot)>(<**8:>(Mli)):li},{(Mcot)>(<*9:>(Mpp)),(Mcot)>(<**9:>(Mpp)):pp}, {(Mcot)>(Mpli):pli},{(Mcot):aa},{ph}
The primary line in the remote OBi is set to PSTN amd in the local to SP1.