| 摘要 |
A subscriber terminal (22) within a business/residence (32) is in communications with a telecommunications network (12) through a fiber optic connection (33) to an optical network unit (20). Telephony signals are transmitted to and from the subscriber terminal to a user through a cordless telephone handset (26). During normal operation, the cordless telephone handset (26) operates in a cordless mode, passing telephony signals to a subscriber terminal telephone antenna (24) for transmission on the fiber optic connection (33). In the event of a power outage at the business/residence (32), the cordless telephone handset (26) switches to a wireless mode in order to continue to provide telephony communications. In the wireless mode, telephony communications are provided from the cordless telephone handset (26) to the telecommunications network (12) through a wireless telephone provider (14).
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