英语
西班牙语
英语
西班牙语
单语范例（未经PONS编辑处理）
Satellite telephony can avoid this problem and be useful during natural disasters.
en.wikipedia.org The company has a product portfolio of fixed telephony, data, internet and mobile telephony products.
en.wikipedia.org Packet-switching provides better bandwidth utilization and response times than the traditional circuit-switching technology used for telephony, particularly on resource-limited interconnection links.
en.wikipedia.org For connectivity, some individual subscribers rely on mobile telephony, though access remains expensive, with most using dial-up services as their primary means.
en.wikipedia.org The company also provides communications products and integration services for call centers and other facilities requiring large-scale computer telephony installations.
en.wikipedia.org