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Section
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titleIntroduction

Some VoIP platforms support Intercom/Broadcast groups, the platform can send an INVITE with a special header that enables the phone to answer the call automatically.

Maxwell support the following headers for auto-answer:

  • Call-Info: <sip:ip.addr-pbx>;answer-after=0
  • Call-Info: <sip:127.0.0.1>;answer-after=0
  • Call-Info: <sip:127.0.0.1>;info=alert-autoanswer;delay=0
  • Call-Info: <sip:ip.addr-pbx>;info=alert-autoanswer;delay=0
  • Call-Info: <uri>;answer-after=0
  • Alert-Info: Ring Answer + Call-Info: answer-after=0
  • Alert-Info: <[some.address]>; info=alert-autoanswer


Info
titlePlease Note

Values, which are different to 0, are not supported.

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titlePhone settings

In the Maxwell you can define what should happen if the call is ringing and this header is available.

Calls via Call Manager, accept call directly:

  • Via headset
  • Via handsfree
  • No (Device will ring and you need to answer manually)



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titleAuto provisioning
Parameter nameDescription
Telephony.Speechpath.CallsViaCallManager

0 = No
1 = Headset
2 = Handsfree

Telephony.Speechpath.IncCallsWithoutCallManager0 = No
1 = Headset
2 = Handsfree
Telephony.Speechpath.OutCallsViaFunctionKey0 = No
1 = Headset
2 = Handsfree

Example:

<param name="Telephony.Speechpath.CallsViaCallManager" value="0"/>
<param name="Telephony.Speechpath.IncCallsWithoutCallManager" value="0"/>
<param name="Telephony.Speechpath.OutCallsViaFunctionKey" value="2"/>