The spec sheet says not to use 700G for onelook networks. it looks like it will do ip-gateway link with sip trunk licences
We don't have the 700g here, but did have the NCP500v which was the same idea. we had a few issues with the customer out-growing it fast.
if the expansion licence is expensive it could cost a lot later
“I have not failed. I've just found 10,000 ways that won't work.”