There are a few places a person could buy and find Cisco parts. Cisco parts are probably best bought from the company themselves unless a local retailer sells them in a persons area.
Someone might go to purchase Casio phones at a generic store that sells phones such as Best Buy or Target, or from a generic online retailer such as Amazon.
A wholesale buyer is a person or business that purchases from a wholesaler or manufacturer and then sells direct as a retailer or sells to a retailer.
Cisco
"Mostly on the internet, though you may be able to find one in an electronics store. Any online retailer that sells electronics will have them available."
Walmart
The easiest way to purchase an AT&T cell phone is to go to a local AT&T retailer. If this is not an option, AT&T also sells phones on its website. You can also sometimes find used AT&T phones sold by others on Craigslist or Ebay.
a retailer
The maximum number of Cisco IP phones that can be daisy chained together directly through a switch port is two. These two phones will provide an additional 48 lines.
A person who sells phones is typically referred to as a phone salesperson or mobile device retailer. They work in various settings, such as electronics stores, mobile carrier shops, or online platforms, assisting customers in selecting and purchasing mobile phones and related accessories. Their role often includes providing information about device features, plans, and promotions to help customers make informed decisions.
VOIP conference phones allow multiple people to all participate in a conversation and are produced and sold by a number of companies. Some of these companies are Cisco, Polycom, Revo Labs, and ClearOne.
Someone can purchase a Nokia N73 mobile phone from any retailer that sells cell phones from Nokia, whether it be a store specific to only one mobile company, or a generic retailer like Best Buy.