Hi Sascha,
Thanks for your reply.
I double checked the customer´s environment and the CSS is associated to the Line.
Thank you again.
Regards.
Breno Lucena
no, line and device css are concatenated, and depending on how the systems is setup (traditional or device/line) you might want to change the line css instead of device css
it's good to understand how your environment is setup, the SRND has a good chapter on it;
http://www.cisco.com/en/US/docs/voice_ip_comm/cucm/srnd/8x/dialplan.html#wp1150926
regards
Sascha