Police in Victoria say they have received more than 50 reports of unwanted sexually explicit phone calls aimed at female employees of local businesses.

Police say the calls are happening in several jurisdictions and the department's major crimes detectives are also working with RCMP to find the person responsible for the calls that span British Columbia.

Investigators are asking those who get the calls to record them, if it's possible and safe to do so.

A police news release says investigators believe that the same male may be responsible for all the calls.

Police are also asking anyone who is contacted to make notes of what was said, specific words or phrases used by the man, and anything else that might identify a suspect.

They also want women to mark down the time, date and phone number of the call that comes in, if possible.