First of all, the unauthorized/unlicensed practice of law is illegal. While an argument can be made that simply holding oneself out as being an attorney is not the same as actually engaging in the practice of law, it's, nevertheless, wrong to pretend like you're an attorney when you're, in fact, not one.
Secondly, California's civil harassment laws define “harassment” as (a) unlawful violence, like assault or battery or stalking OR (b) a credible (real) threat of violence, AND the violence or threats seriously scare, annoy, or harass someone and there is no valid reason for it. Thus, the information you have provided does not appear to constitute harassment.
On these facts, there is not sufficient basis for concluding that the caller pretended to be an attorney or caused you to believe he is a lawyer. "Counseled" covers a lot of territory including multiple professional and occupational categories and interactions among friends and acquaintances. Nothing about "imperative" is indicative of lawyering. And '"action taken" can refer to almost anything.
No doubt you are right about the caller's intent, but it was artful and vague enough to fall short of actionable civil or criminal conduct.
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