Cisco 7821 IP Phone

Do you have Cisco 7821 Phones you want to sell? We purchased used and excess Cisco 7800 Series phones. We also offer discount pricing on both New and Refurbished Cisco 7800 Series phones if you are interested in purchasing or trade in.

The Cisco 7821 is a 2-line desktop phone, part of Cisco’s new 7800 Series of SIP based IP desktop telephones. These phones are designed around SIP (session initiation protocol) standard and are not offered with traditional proprietary SCCP (skinny) firmware. The 7821 is an entry level model in the series aimed at users only needing two lines. If you have Cisco 7821 phones which have come out of service due to upgrade or excess inventory that you are interested in selling, contact a purchasing representative to request a buyback quote. We can also structure trade in credit toward the purchase of other equipment. is a commercial buyer and refurbished of Cisco phones. We work with companies worldwide to recover value on used and excess Cisco telecom equipment including phones, phone systems and other telephony infrastructure equipment. If you have Cisco 7800 Series phones that you want to replace, we can help. We are interested in purchasing your unwanted phones, and we also sell New and Refurbished Cisco 7800 Series IP handsets, including the CP-7821.

Cisco CP-7821-K9

Cisco 7800 Series phones are currently sold and supported, with no currently announced End of Life / End of Sale Date. Whether you are a seller, buyer, or interested in a trade in proposal, contact us today for more information and pricing on this product.

The Cisco 7821 is a 2-Line SIP Phone with a range of features which include:

  • Backlit, high resolution greyscale LCD display
  • Support for up to 2 lines standard
  • Built in full duplex speakerphone and headset jack
  • SIP standard compliant
  • Can be powered via AC adapter or Power Over Ethernet

we buy used cisco CP-7821 ip phones

We want to buy your Used/Excess Cisco 7821 Phones

If you have pre-owned Cisco 7821 IP phones that you no longer need and want to sell, contact us today to find out what we are paying on the Cisco phone model(s) you have available. We buy both used and New excess phone inventories which are available as a result of recent upgrades, phone vendor changes, business closures and other events.

cheap cisco CP-7821 phones

Buy New or Refurbished Cisco CP-7821-K9 IP Phones at Discounted Prices

We keep a large inventory of most models of Cisco phones, including 7800 Series models. We offer discount pricing on both New and Professionally Refurbished phones. If you are shopping vendors, we would love the opportunity to bid on your phone requirements. To obtain pricing from, submit your details in the contact for below and one of our sales agents will review your needs and contact you with a price quote.

trade in cisco CP-7821 ip phones

Interested in a Trade-In on your Cisco CP-7821 phones?

If you are considering upgrading your office phones, we can offer you trade in credit on your Cisco IP telephones which are coming out of service. Offset a good portion of the cost of your new phones by trading in your old phones toward the purchase of new models. If you are thinking of upgrading, contact us today to find out how we can make it much more affordable for you. Whether you want to buy or sell an old and used Cisco 7821 Phone, can help you with it. Fill in our online form today and make the most of our buy, sell and trade-in offers.

Selling, Buying or Trade-In? Connect with Us Today!

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