I have an iPad running iOS 6 that when connected to my corporate wireless is able to connect to both the Presence and CUCM servers. All functionality works at this point.
When I attempt to connect outside of my corporate wireless I am having problems. I connect through AnyConnect to my corporate network. When I start Jabber for iPad it will connect to my Presence server but not to my CUCM cluster. Both the CUCM cluster and the Presence server are in the same subnet and that is allowed through the split tunnel. If I monitor the traffic I can see it send traffic to Presence over the VPN pool address but traffic over TCP 5060 to the CUCM cluster is attempting to use the outside address of the iPad and is getting blocked by our firewall. The only way that I have successfully connected is using a full tunnel instead of a split tunnel for traffic to our site but we do not want to tunnel all user traffic, just the information we care about.
I have attempted to setup the ondemand VPN field as well as the SecureConnect with no luck at all.
As another note, we use the same VPN tunnels for our PCs and they are able to communicate with no problems, just the iPad will not.
CUCM - 8.6.2
Presence - 8.5.2
ASA 5550 - 8.4.1