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2.Press MEMO. The BATT LOW or SPEAKER indicator blinks.

3.Enter the number and any TONE and PAUSE entries (see “Using Tone Services on a Pulse Line” on Page 17 and “Entering a Pause” on this page).

Note: Each TONE or PAUSE entry uses one digit of memory.

4.Press MEMO, then enter the mem- ory location number (0–9). A sin- gle tone sounds, indicating that the number is stored.

Note: If five quick beeps sound, you have made an entry error and the number was not stored. Start again from Step 2.

5.For each stored number, write the person’s or company’s name next to the appropriate location number on the supplied MEMORY direc- tory sticker. (Use a pencil in case you want to change the number later.)

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6.Remove the adhesive backing from the sticker, then attach the sticker to the back of the handset.

To erase a stored number, simply store a new number in its place. Or, press MEMO twice, then press the memory location number (0–9) you want to clear. A tone sounds.

Entering a Pause

In some telephone systems, you must dial an access code (9, for example) and wait for a second dial tone before you can dial an outside number. You can store the access code with the phone number. However, you should also store a pause after the access code to allow the outside line time to connect.

To enter a 2-second pause, press PAUSE (REDAIL/P on the base). For a longer pause, press PAUSE (or REDI- AL/P) additional times.

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Radio Shack ET-550 owner manual Entering a Pause
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ET-550 specifications

The Radio Shack ET-550 is a notable device from the well-known electronics retailer, combining simplicity and functionality for users in the late 20th century. Positioned as a reliable personal electronic device, the ET-550 attracted tech enthusiasts and casual users alike, eager to embrace the digital age.

One of the main features of the ET-550 is its compact and lightweight design, making it highly portable. Users appreciated the ease with which they could carry the device, whether for personal use or during travel. The device had a user-friendly interface, ensuring that even those with limited technical knowledge could navigate through its various functions effortlessly.

The ET-550 incorporated advanced technology for its time, utilizing a clear LCD screen that displayed information prominently. This screen made it easy for users to read text and access various features without straining their eyes. The device also boasted a built-in keyboard that was comfortable to use, enabling quick data input and interaction.

Among its characteristics, the ET-550 featured a robust memory capacity, allowing users to store a plethora of notes, calculations, and data entries. This aspect made it particularly appealing to professionals and students who needed to keep track of important information on the go. Additionally, the ET-550 included a calculator function, helping users perform a variety of mathematical operations with ease, which was essential for business and academic tasks.

Another significant technology employed in the ET-550 was its power efficiency. The device was designed to consume minimal battery life, which was a key consideration for users relying on portability. With long-lasting battery performance, the ET-550 ensured that users could depend on it through extended periods without the need for frequent recharging or battery replacement.

The Radio Shack ET-550 also offered a variety of connectivity options to facilitate data sharing and device integration. Whether connecting to a computer or other peripheral devices, the ET-550 provided versatility in its applications, further enhancing its appeal.

In conclusion, the Radio Shack ET-550 stands out as a testament to innovation in personal electronics during its time. With features focused on usability, portability, and efficiency, it captured the attention of a diverse user base, marking an important chapter in the evolution of personal tech.
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