Cisco phones can be found in multiple places online. The company itself sells the phones. A person can also find them on Amazon. The other main retailer of Cisco phones is VoIP Supply.
Yes, T Mobile sells phones.
A provider of cell phones its a business that sells phones to people
Cellular Country.com sells cheap used cell phones. All phones are unlocked and prices are great! Here is the website: http://www.cellularcountry.com/
A provider of cell phones its a business that sells phones to people
Asda sells a large varitey of phones, from land line based phones, cordless phones, mobile phones to even large group speaker phones mostly used for business. Asda also sells used models and accepts trade ins in terms of store credit.
oligopoly- because there are a lot of different firms which sells blackberry phones
Verizon is the type of company who sales phones!
Yes, amazon sells t-mobile phones. The amazon website also sells accessories you can buy with your phone; if you decide to buy a phone from the amazon website.
Office Max sells Nortel phones. Numerous online shops specializing in Nortel phones are available as well, however I can only find confirmation of Office Max as a well-known brick and mortar store that sells them.
Amazon.com
You can find some refurbished Verizon phones on ebay. Verizon Wireless also carries refurbished phones. There are a number of other sources such as Cellular Country, Used Cell Phones Shop, On Sale Cell, etc.