Ok, there's a few questions here...
first of all, to break out from CUE, you need to enter Ctrl++6 followed by 'x'. that will drop you back to the router where you can enter the 'disconnect' command. (a future release, probably 2.0, will include a command to disconnect straight from CUE).
Resetting CUE to the factory defaults involves re-imaging the card. There is no simple command that will reset everything to the beginning otherwise. Just follow the instructions to upgrade to a new image. For that matter, if this really is 1.0, I would strongly encourage you to upgrade to 1.1.1. It's got a lot of fixes, in particular, if you're running 1.0.1, it has a new file system which is much more resilient to problems due to unexpected power outages.
Now, regarding the original problem, it sounds like there's an ip connectivity problem of some sorts. There are a few things that will need to be checked:
- make sure the router has a service-module interface with an ip address (or ip unnumbered to an interface that is up (show int)
- make sure the service-module interface is not down (show int)
- if IP unnumbered, make sure there's a host route, eg ip route 1.2.3.4 255.255.255.255 service-engine 0/0, where 1.2.3.4 is the ip address of the CUE.
- under the service-engine interface, make sure there is an service-module ip address and service-module default-gateway (pointing to the ip
- in CUE, do a 'show ccn subsystem sip'. make sure the SIP gateway is the router's ip address.
If that all doesn't work, if you can post the configs from the CME and CUE. My suspicion, though, is that an ip address changed somewhere, probably on the CME side.
