You pointed to a case that was ostensibly about jobs, in fact there was actually common ground that the jobs were comparable and the wages were not.
My reply was to this question,
Are there actual jobs in Canada where women are getting paid less than men for doing the same job?
"In
provincial jurisdictions, employers must give men and women equal pay for similar or
substantially similar work. In the
federal jurisdiction, employers must give equal pay for work of
equal value."
http://www.mccarthy.ca/pubs/2006_Labour_Conference_Materials.pdfAs this was a municipal jurisdiction,
"The latter group was employed by the City of Vancouver while the former group was employed by the Vancouver Police Board. The Tribunal and ultimately the Court of Appeal agreed they were separate employers even though the City of Vancouver had final responsibility to pay for the employees of the Police Board."
This was Vancouver. The situation in Toronto was virtually identical. So, it was watched closely as the case went to the Supreme Court of Canada.
Interestingly, after 1998, Paramedic and Fire dispatchers could transfer between each others Communications Divisions.
But, not with ( the lower paying ) City Police Communications.