The keypad can be connected to either the "Key" socket of the IC-705 or the "Ext. Keypad" socket of the IC-7610, as per the Icom user manual. This connection enables the recall of memories 1 to 8 for telegraphy, RTTY, and voice modes. Users have the option to use two keys on the keypad as a substitute for a Morse key, or they can connect a traditional Morse key using the corresponding socket on the Keypad-705. A cable with 2x 3.5mm stereo jacks is provided in the package.

Both the IC-705 portable transceiver and the IC-7610 desktop transceiver offer eight memories for pre-recorded messages across various operating modes. These memories are particularly beneficial during contests or for standard messages like CQ calls. They can be accessed for telegraphy, RTTY (and PSK for IC-7610), and voice modes. While these memories can be recalled via the touch screen, using an external keyboard provides a convenient way to access them without occupying the main screen.

In addition to the pre-recorded messages, users have the flexibility to connect a standard Morse key to the transceivers. Alternatively, they can utilize the two keys on the keypad specifically designated for telegraphy purposes. This feature enhances the user experience, especially during activities like contests or managing pile-ups efficiently.