Reasonable means what a reasonable person would see as normal or not excessive. What is reasonable depends on the circumstances of the particular case. A phone call from a parent every day would likely not be excessive, but several phone calls every day (absent an emergency) could be excessive. "Reasonable" is a term defined by the totality of the circumstances, and the Court would define it based on all the facts available.
Disclaimer: This answer does not constitute legal advice, and should not be relied on. Each state has different laws, and each situation is fact specific. Without an in depth consultation and analysis of all relevant facts and evidence, it is impossible to fully evaluate a legal problem. This answer is not intended to, and does not, create an attorney-client relationship.
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