Do you have the IPSI in Slot 01? (needs to be)
Do you have a TN771DP in the gateway? (need to have one)
Do you have the paddle board set to "A" (upper right viewed from the rear of the G650, needs to be)
Is your Control Network set to be on the "Corporate LAN"?
This would be somewhat unusual, most use a dedicated CN-A, and a CN-B, if that is the case, you would need to replicate those CN's at the remote site, which pretty much means dark fiber.
If you have dedicated CN's at the main site, and you are trying to put this remote PN on the corporate LAN, that will not work, unless you can replicate those network segments to the remote site.
short of doing that, you will have to re-address the IPSI's at your MAIN site, and put them on the "Corporate LAN", and then go into "configure server" on each S87XX (if thats what you have, you didn't say), and set the Control Network to use "Corporate LAN"
I have had to do this for clients in the past, who where unable to replicate the dedicated control networks they where using at a single site, over a WAN, as they didn't have Layer 3 switches and ther ability to "trunk" that LAN segment to the remote site.
Mitch
AVAYA Certified Expert