Traditionally, to be incommunicado means to be without access to any method of communication. That often applies to someone who is imprisoned, sequestered, or otherwise engaged and having no access to a telephone or other communication device: “You ain't supposed to have no lawyer yet.

What does it mean to be held incommunicado?

: without means of communication : in a situation or state not allowing communication a prisoner held incommunicado remained incommunicado while working on her book.

What does incommunicado mean as it is used in this text?

/ˌɪn.kəˌmjuː.nɪˈkɑː.doʊ/ uk. /ˌɪn.kəˌmjuː.nɪˈkɑː.dəʊ/ not communicating with anyone else because you do not want to or are not allowed to: His secretary says he will be incommunicado for the rest of the day.