Is it possible to establish Inter cluster trunk between CUCM 6.1 & CCM 4.1 versions.
I have gone through documentation for 6.1 but didn't find compatibility of features with other versions.
Hope all is well :)
Yes, ICT's can be configured between different versions of CCM, like in your example 4.1(x) and 6.1(x). This functionality goes back to at least CCM 3.3 that's probably why no compatibility matrix exists.
Hope this helps!