Dear All,
I've got an existing remote management design over regular ISDN with dialer maps (One big L3 subnet, there's a separate ISDN call-number for each branch sites and in L2 we map the ISDN numbers with the IP addresses)
The ISDN could in the region is now being dismantled and we would like to use 3G/LTE capable routers instead (Cisco 881G7).
The question is, is it possible to use the LTE device as receiver of an ISDN-initiated L2 connection, so that we can establish L3 connection by using the existing ISDN infrastructure in our central management location?
So, in a nutshell:
ISDN call <-IP traffic-> 3G/LTE/Mobile
