Hi Andy,

Sorry about that :) There are similar commands for CME shown in the attached doc. You should be able to play with these to come up with the ultimate "power save" mode;

The following example shows how to set the backlighting parameters so that there is no backlighting of the phone display for all Cisco Unified IP phones with backlight capabilities until there is user interaction with the phone. The backlightIdleTimeout parameter is configured so that the backlight will switch off again after 60 seconds of inactivity.

Router(config)# telephony-service

Router(config-telephony)# service phone daysBacklightNotActive 1,2,3,4,5,6,7

Router(config-telephony)# service phone backlightOnTime 07:30

Router(config-telephony)# service phone backlightOnDuration 10:00

Router(config-telephony)# service phone backlightIdleTimeout 00.01

Router(config-telephony)# create cnf-files

Router(config-telephony)# reset all

http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/command/reference/cme_s1ht.html#wp1083963

Hope this helps!

Rob