No, such clauses are not enforceable as it is a restraint of trade.
Simple really. In respect od the solicitation, it is not an issue.
Before I rate your response, I would like a little more detail please.
1. So if the clause is in someone's contract saying - you are not allowed to contact a "client" for minimum 6 months after you leave the company - you are saying it is NOT enforceable. Does this mean an employer cannot make that sort of condition? If so can you be more specific about restraint of trade, what do you mean? Does an ex employer not have the right to restrict someone else's business - and is it referred to in the Trade Practices Act?
2. Please explain why the "solicitation" is not an issue.
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