Changing the Ringer Style

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3.Press CLR so Off appears or STO so On appears.

4.Press END to exit the functions menu.

Notes:

•In order to send DTMF tones when you use special phone services (such as bank by phone), you must dis-

able the silent scratchpad function before you place the

call, or (if silent scratchpad is on) press RCL SND after you enter the commands or codes, so your phone sends those entries as DTMF tones. See “Using Touch-Tone Services” on Page 61.

•If silent scratchpad is on, you might hear tones when you press the phone’s number keys, but the other party on the line does not hear them.

Your phone has 9 different ringer styles for you to choose from (to help you distinguish your phone’s ring from that of another phone, for example). Follow these steps to change the ringer style.

1. Press	FCN MENU .
	NAME

2.Repeatedly press or # until the phone displays Ringer Style and a number from 1–9(the last selected ringer style).

3.Press STO . The phone sounds the currently selected ringer style, then it displays the prompt Select 1–9.

Note: If your phone is set to vibrate or make no sound/ movement at all when it receives an incoming call (see “Changing the Alert Type” on Page 29), your phone does not sound the ringer tones during this procedure.

CT-502 specifications

The Radio Shack CT-502 is a remarkable device that stands out in the world of vintage technology, particularly known for its versatility and functionality as a portable computer. Launched during a time when personal computing was rapidly evolving, the CT-502 embodies the spirit of innovation that characterized the early days of computing technology.

At its core, the Radio Shack CT-502 comes equipped with a Zilog Z80 microprocessor, a staple of many early personal computers that provided solid performance for its time. This CPU offers an 8-bit architecture with a clock speed of 2.5 MHz, allowing users to execute tasks efficiently. The CT-502 features a memory capacity of 64 KB of RAM, which can be expanded, making it suitable for various applications, from basic text processing to simple programming tasks.

One of the standout features of the CT-502 is its dual built-in floppy disk drives, which enable users to easily load and save data. This was particularly advantageous during the era when storage solutions were evolving, as it allowed for quick access to programs and files. The 5.25-inch floppy disks used by the CT-502 became a standard for many personal computing applications, ensuring wide compatibility with software.

The device also features a compact, built-in keyboard that boasts a full set of function keys, essential for efficient data entry and navigation. Complementing the keyboard is a 40-character by 24-line monochrome display, which provides a clear view of text and applications, ideal for programming and document creation.

In terms of connectivity, the CT-502 includes a variety of ports such as serial and parallel interfaces, allowing users to connect external devices like printers and modems. This functionality enhanced the versatility of the system and integrated it into the growing network of computers.

Moreover, the Radio Shack CT-502 runs on the TRS-DOS operating system, designed specifically for the TRS line of computers. This operating system was user-friendly for its time, enabling users to manage files and perform various tasks without deep technical knowledge.

In summary, the Radio Shack CT-502 represents a significant milestone in early computing history, offering a combination of portability, ease of use, and expansion capabilities. With its reliable hardware, user-friendly interface, and diverse connectivity options, it remains a fondly remembered piece of technology that paved the way for modern personal computers.