is it possible for a CME ,wich is loaded on a router, to handle mgcp calls on FXS ports with all mgcp feature ,like call waiting ,call transfer,...?
I think that you would want to use SCCP (not MGCP),due to the fact that SCCP has support for many common Telephony features;
Check out Table 1 from this VG224 doc;
This is also an excellent doc;
SCCP Controlled Analog (FXS) Ports with Supplementary Features in Cisco IOS Gateways
Hope this helps!