Date: 2010-12-09 13:46:36

Teletraffic

Oral communication

Telephone call

Dial tone

Call forwarding

Rotary dial

Automatic callback

Caller ID

Telephone numbering plan

Telephony

Electronic engineering

Telephone numbers

Advanced Calling Features Guide AUTOMATIC CALLBACK Use: Save time by not calling busy numbers over and over. Description: Calls the last number dialed without having to redial the number. If the redialed number is busy,

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