The MacPhone affixes to the side of the Classic Mac. The picture shows the unit on the right side, I usually put it on the left side.
You will need some velcro tape. This is an original Prototype from Comdex, Las Vegas, (circa)1984 One of Four original production units. Included is an early version of the disk.I found the Manual, I'll include it. Touch-tones generated by the Mac audio port. Concept from the Habadex program. Precursor to the Donald Brown's Side Kick software. From clean, dry, smoke-free environment.
The item "VINTAGE Intermatrix MacPhone Apple Mac Phone With Manual - Rare 1984" is in sale since Sunday, February 9, 2020. This item is in the category "Computers/Tablets & Networking\Vintage Computing\Vintage Parts & Accessories".
The seller is "conch-cottage" and is located in Los Angeles, California. This item can be shipped to United States, Canada, United Kingdom, Denmark, Romania, Slovakia, Bulgaria, Czech republic, Finland, Hungary, Latvia, Lithuania, Malta, Estonia, Australia, Greece, Portugal, Cyprus, Slovenia, Japan, China, Sweden, South Korea, Indonesia, Taiwan, South africa, Thailand, Belgium, France, Hong Kong, Ireland, Netherlands, Poland, Spain, Italy, Germany, Austria, Bahamas, Israel, Mexico, New Zealand, Philippines, Singapore, Switzerland, Norway, Saudi arabia, United arab emirates, Qatar, Kuwait, Bahrain, Croatia, Malaysia, Brazil, Chile, Colombia, Costa rica, Panama, Trinidad and tobago, Guatemala, Honduras, Jamaica, Ecuador, Egypt, Guadeloupe, Iceland, Jordan, Sri lanka, Luxembourg, Oman, Peru, Paraguay, Viet nam, Uruguay, Antigua and barbuda, Aruba, Belize, Dominica, Grenada, Saint kitts and nevis, Saint lucia, Montserrat, Turks and caicos islands, Barbados, Bangladesh, Bermuda, Brunei darussalam, Bolivia, French guiana, Guernsey, Gibraltar, Jersey, Cambodia, Cayman islands, Liechtenstein, Monaco, Macao, Martinique, Maldives, Nicaragua, Pakistan, Reunion.