I have a router Cisco 1812 (P/N CISCO1812/K9). My question is if it possible to run Call Manager Express into its IOS and which version.
According to CUCME compatibility information
- 1861 can run CUCME 7.X and CUCME 8.X up to 8.6
- 1861E can run CUCME 8.8, 9.X and 10.0
No mentions to 1812 even in earlier versions of CUCME. So looks like you can not run CUCME in 1812.
Doesn't look like it. The only 1800-series Cisco router that supports CME is the 1861.