Officially, when I am posting on here, I am not qualified in any way, or representing any organisation at all. (If I was qualified, and I had spoken to my supervisor, she might have advised me that it is not OK to post as the voice of any organisation at all. Of course, this isn't an issue, because I am not involved with any BF organisation, in any way.)
I know people in my neighbourhood who earn their living as BFCs, paid by the NHS. But we are very lucky, and have a project paying for ward visits and home visits.
I know people in my neighbourhood who also earn their living coordinating the project, and also working as supervisors and tutors within the BFN.
There are also plenty of people who either have other fulltime jobs, or who are wrangling children.
The courses, and phoneline work, are generally possible with fulltime work - they do daytime classes and supervision (with creche) and evening classes and supervision(without).
I know that the phonelines are better-staffed in the evenings and weekends, because most of the women answering the phones, do so in the evenings, when home from work.