i use gns3 to build simulation for my CCNA Voice
my question is that should i insert CME Ios to Router?
or one of the Enterprise IOS that router has sufficient and support full voice ?
Adv IP services, merges SP and Security services.
With SP Services you have Data services + Voice
So yes you can download it
On GNS3 you can simulate 37XX router which can mount 12.4(25d) as latest release which has CME 7.0 built-in.
Adv enterprise contains that release of CME.