SIP Phones, Speakers and Headphones
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      2. Simplifi Contact (VoIP and UCaaS Solution)
      3. SIP Phones, Speakers and Headphones

      Simplifi Contact - No Ring Back Tone on Yealink Phone

      No ring back tone, or double ring back tone heard when calls are made.

      There is a setting in the phone to make a decision on whether to deal with the 180 SIP message received after the 183 SIP message.

      The setting is “180 Ring Workaround”.

      You can configure this via web or provisioning.

      Via web GUI:  Features->General Information->180 Ring Workaround

      Verify the setting is set to "Enable"

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