Hi,Jabber for the iPhone is not supported over a VPN; it is only supported on locally on the UC. Please find below a link to the limitations and configuration information for the Jabber client.https://supportforums.cisco.com/docs/DOC-24508Regards,Bri...
Disable the PPTP server and see if you can connect remotely. If you can connect, please contact Cisco SBSC at 1.866.606.1866 and open a case with them. They may know of a work-around for this issue.Thanks,brelefor
