VoIP Phone Adapter Prices
Current market data for 1,989 VoIP phone adapters shows a median price of 29.99.
What you'll usually pay
💡 Buying used saves about 29% here.
👉 In short easy summary
The best value is found with Linksys adapters, which sit 17% below the market median. Conversely, Grandstream and Unbranded options carry significant premiums of 67% and 107% respectively.
💚 Best value for your money
Price by brand
Why? Prices vary significantly by manufacturer, ranging from Linksys at 24.99 to Unbranded units at 62.09.
🛒 Some on sale right now
Common questions
What is the price difference between new and used VoIP adapters?
New adapters have a median price of 35, while used adapters are lower at 25.
Which brand is the most expensive on average?
Unbranded adapters have the highest median price at 62.09.
How does Cisco's pricing compare to the market median?
Cisco adapters have a median price of 39.1, which is 30% above the market median.
How we got these numbers
Worked out from 200 live eBay listings (price range $11–$100, odd outliers ignored). These are asking prices, so use them as a guide. Last checked August 9, 2026.