I was discharged from the CMHT last year some time. The beginning of, I think. It was a mutual decision as I had been well for some time and was ready to progress to being out of the system.
Even though I have been discharged, I am able to call the CMHT to talk to a designated member of staff or the duty worker if she is not in. I am able to meet up with someone if I am in a really difficult place. I also still have out of hours access to the Crisis Team and they can access my notes and always email my designated person when I've been in contact.
So, I may have been discharged, but I do have a safety net of sorts. Hopefully a similar thing will happen with other people who are discharged, though I know not everyone will be so fortunate.