Yes,
Use a service url button on the phone (define this in a template, apply template to phone)
Define the EM service with the following keywords at the end,
http://123.45.67.89/emapp/EMAppServlet?device=#DEVICENAME#&userid=&seq=
HTH
Sankar
PS: please remember tor ate posts!
Sankar Nair
UC Solutions Architect
Pacific Northwest | CDW
CCIE Collaboration #17135 Emeritus