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. Get the AT instruction and parameter AT+ (? W *) = (?: "? (? W +)"?) *

. Gets the returned + (?) containing the type + CMD W *): s * (?: "? (? W *), | (? W +)"?) *

. AT+CMGL returns ^ + CMGL:s* (? D *), (? D *), (? D *), (? D *) rns* (? W *)

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