busy tone การใช้

• You'll be lucky if you get anything other than the busy tone.
• But the taste makers are busy toning down gold's image.
• If they called on the phone and they heard the busy tone, they would immediately understand,
• Fear of a hole-in-one hardly kept golfers away one recent weekend from the busy Tone Golf Club.
• If all the trunks were busy, the selector sent back an All Circuits Busy tone ( reorder tone ).
• In the United Kingdom, busy tone consists of a single 400 Hz tone with equal 0.375 s on / off periods.
• She dials and gets a busy tone again, and decides to leave, having already left the note in Joshi s possession.
• Dialing the telephone is like spinning a roulette wheel, with callers more likely to get a busy tone or a stranger than connect with their party.
• The British reorder tone is the same 400 Hz tone as the busy tone, instead with a cadence of 0.4 seconds on, 0.35 seconds off, 0.225 seconds on, 0.525 seconds off.
• If the calls were overflowed to the tandem route, the caller would receive a busy tone from the exchange serving the radio station, and the sudden peak would disrupt calls between other customers.
• The analogy with free / busy tone on PSTN is inexact, as the " on-hook " telephone status reflects the ability of the network to reach the recipient after the requester has initiated the conversation.
• This tone was adopted in the mid to late 1960s and replaced the older busy tone, which was the same 400 Hz signal but at half the interruption rate ( i . e . 0.75 s on, 0.75 s off ).