I found this from one of Rob's Post
1. enable
2. configure terminal
3. ephone-template template-tag
4. conference add-mode [creator]
5. conference drop-mode [creator | local]
6. conference admin
7. softkeys connected {[Acct] [ConfList] [Confrn] [Endcall] [Flash] [HLog] [Hold] [Join] [LiveRcd] [Park] [RmLstC] [Select] [TrnsfVM] [Trnsfer]}
8. softkeys hold {[Join] [Newcall] [Resume] [Select]}
9. softkeys idle {[Cfwdall] [ConfList] [Dnd] [Gpickup] [HLog] [Join] [Login] [Newcall] [Pickup] [Redial] [RmLstC]}
10. softkeys seized {[CallBack] [Cfwdall] [Endcall] [Gpickup] [HLog] [MeetMe] [Pickup] [Redial]}
11. exit
12. ephone phone-tag
13. ephone-template template-tag
14. end
Cisco Unified Communications Manager Express System Administrator Guide
Configuring Conferencing
http://www.cisco.com/en/US/docs/voice_ip_comm/cucme/admin/configuration/guide/cmeconf.html#wp1017618