Critique Maria's telephone skills based on the provided scenario.

Here are the shortcomings of Maria's telephone skills:

• Dialing the wrong number: Maria dials the wrong number initially, reaching "Mbitini bookshop" instead of "Wananachi Wholesalers."
• Lack of preparation: She does not have her order details ready, needing to consult her husband during the call to find out what to order.
• Incomplete information: She lacks specific details about the order, such as the preferred brand of wheat flour, the exact quantity of tea leaves, and the quantity of soap, requiring the person on the other end to prompt her for this information.
• Poor phone etiquette: She shouts the delivery number "2-3" when asked to repeat it, rather than speaking clearly and calmly.