Figure 7-1: Wide Area Networks WANS) Carriers Beyond their physical premises, companies must use the services of regulated carriers for transmission Companies do not have rights of way to lay wires beyond their premises Customers are limited to whatever services the carriers provide Prices for carrier services change abruptly and without technological reasons Prices and service availability vary widely from country to country 7-67-6 Figure 7-1: Wide Area Networks (WANs) • Carriers – Beyond their physical premises, companies must use the services of regulated carriers for transmission • Companies do not have rights of way to lay wires beyond their premises – Customers are limited to whatever services the carriers provide – Prices for carrier services change abruptly and without technological reasons – Prices and service availability vary widely from country to country