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How to Check Phone for a Valid Device Certificate

Updated: 04/17/2024

Objective

Checking your third-party (non-8x8 purchased) phone for a valid Device Certificate.

Applies To

  • Third-Party Devices
  • Device Certificate

Procedure

Note: Accommodation of devices not purchased from and originally provisioned for service by 8x8 is best-effort. These devices are not guaranteed to be supported on 8x8 service.
Before attempting to provision a third-party phone for 8x8 service, you should check your device for a valid, factory-issued device certificate. You will then be able to provision your device for 8x8 service. The certificate must be factory-installed, and not added by another party later. (What are device certificates and why are they important?)
8x8 allows provisioning of third-party phones from the manufacturers below.

Cisco

For full instructions on configuring Cisco phones see  Provision Your Cisco SPA IP Phone. 
Follow these steps to determine whether a valid, factory-installed Device Certificate is on your phone
  1. Connect the phone to the network and power it on. (If you will be using a computer to complete provisioning setup, ensure the phone and computer are on the same VLAN/subnet.)
  2. Via the phone menu, verify that the device has a valid installed client certificate.
    • SPA303 and SPA504G: Press Menu > 10: Product Info > 6 (Certificate: Installed)
    • SPA525G2: Press Menu > 10: Status > 1: Product Info (Certificate: Installed)
      You should see the message Certificate: Installed. If you do not see this, the phone cannot be provisioned for use with 8x8. Please contact the phone's previous owner or the previous service provider for assistance.

Poly

For full instructions on configuring Poly phones visit Reusing Poly Phones with 8x8 Service.
  1. Press the Menu key and scroll past Features to Status.
  2. Select Status.
  3. Select Platform.
  4. Select Phone.
  5. Read the message:
    • If the message says Device Certificate: Factory Installed, your phone is supported on 8x8 service.
    • If the message says Device Certificate: Not Installed, Device Certificate: Invalid or if there is no device certificate message at all, the device is not supported on 8x8 service. 

Yealink

For full instructions on configuring Yealink phones visit Reusing Yealink Phones with 8x8 Service.
  1. Press the OK key.
  2. Press down to select More...
  3. Select Phone.
  4. Scroll down to Device Cert, then read the message:
    • If the message says Device Certificate: Factory Installed, your phone is supported on 8x8 service.
    • If the message says Device Certificate: Not Installed, Device Certificate: Invalid or if there is no device certificate message at all, then the phone is not supported on 8x8 service.