Cisco 3900 Series IP Phones

Cisco 3900 Series IP Telephones are inexpensive, basic SIP compatible phones intended for industrial / institutional usage….. no-frills applications such as cubicle workers, lobbies, educational environments and manufacturing facilities. There are three Cisco 3900, fixed (wired) ethernet models models which have been manufactured, although 2 of 3 have been phased out, leaving only the Cisco 3905 currently sold and supported by the manufacturer.

3900 Series SIP phones offer basic features, a small and simple LCD display, and run SIP protocol making them compatible with most SIP phone systems and many hosted VoIP / PBX providers.

We Buy Used and Excess Cisco 3900 Series Phones

– CiscoPhoneBuy.com will buy your used or excess Cisco 3900 Series IP telephones. If you have spare phones you want to sell, contact our purchasing department today to request a quote.

We Sell New and Refurbished Cisco 3900 Series Phones

– If you are looking to buy and need pricing on New or Refurbished Cisco 3900 Series phones, we can provide you with competitive quote on New or professionally Refurbished phones with a full 1-Year Warranty.

For additional information on the 3900 Series products that we buy and sell, please browse from the specific models shown below:


Cisco 3951 SIP Phone

Sell, Buy or Trade In Cisco 3951 IP Phones

Have you recently upgraded the Cisco telephones in your office? Do you have Cisco CP-3951 phones coming our of service that you want to sell? Are you interested in buying or trading in Cisco 3951 IP Telephones? If you are interested in the Cisco 3951, whether buying or selling, we can help! If you have… read more

Cisco 3905 SIP Phone

Sell, Buy or Trade in Cisco 3905 IP Phones

Do you have used Cisco 3905 IP phones you need to sell? Cisco CP-3905 IP telephones coming out of service that you’d like to sell or trade in? Are you looking to purchase Cisco 3905 IP Telephones? If you have an interest in the Cisco CP-3905 model phone, CiscoPhoneBuy.com can help! If you’ve completed a… read more

Cisco 3911 IP Phone

Sell, Buy or Trade in Cisco 3911 IP Phones

Are you interested in buying, selling or trading in used or excess Cisco 3911 IP Phones? Do you have Cisco CP-3911 IP telephones coming out of service due to upgrade that you need to sell? Perhaps you are interested in a quote to purchase New or Refurbished Cisco 3911 IP handsets? We can help! CiscoPhoneBuy.com… read more