If the INVITE request contains the following type of strings, the IP phone will answer incoming calls
automatically without playing the ring tone:
➢ Answer-Mode: Auto
➢ Alert-Info: info = alert-autoanswer
➢ Call-Info: answer-after = 0 (or Call-Info: Answer-After = 0)
You can configure the distinctive ring tones by the phone WEB UI.
The IP phones support either or both speaker and Headset ringer devices. You can configure
which ringer device to be used when receiving an incoming call. For example, if the ringer device is
phone to Headset, ring tone will be played through your Headset.
If the ringer device is phone to Headset or Headset&Speaker, the headset (either a wired Headset,
or USB Headset) should be connected to the IP phone and the Headset mode also should be
activated in advance.
Topic
Ringer Device Configuration
The following table lists the parameters you can use to configure ringer device.
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