The VoIP phone resale market is

 not stable and is booming in the market as the current companies are finding ways with more flexible and scalable means of communication. A VoIP phone is in high demand because, through a call, one can now connect via the internet hence saving much more than it saves when using landlines. Used VoIP phones are sold for a quick cash flow, especially if they are new models from big brands like Cisco, Polycom, or Yealink. You should know who to selling used voip phones, what your devices are what they can do, and what people want to get the best out of your sales.