I'm working on configuring SRST between CM 6.0 and 3845 router with CME on the router. I just came across the following restriction;
The call-manager-fallback command, which is used to configure Cisco Unified SRST, cannot be used on a router that is configured for Cisco Unified CME.
However, the following documentation says that command is required; http://www.cisco.com/univercd/cc/td/doc/product/software/ios123/123cgcr/vvfax_c/callc_c/ccm_c/intcnf1.htm#wp1097769
Will SRST work if CME is on same router as gateway? Do I need "call-manager-fallback" command to make SRST work?