Simultaneous dialing

This example uses three User and Number elements to dial two SIP endpoints and a phone number at the same time. The first of these calls to answer will be connected to the caller, and the rest of the connection attempts will be canceled.

Example

<Response>
    <Dial>
      <User>sip:alice1234@registrar.vobiz.ai</User>
      <Number>15671234567</Number>
      <User>sip:john1234@registrar.vobiz.ai</User>
    </Dial>
</Response>