BackToBackCall Constructor
Creates an instance of the BackToBackCall class for the specified call legs.
Namespace: Microsoft.Rtc.Collaboration
Assembly: Microsoft.Rtc.Collaboration (in Microsoft.Rtc.Collaboration.dll)
Syntax
'Declaration
Public Sub New ( _
call1Settings As BackToBackCallSettings, _
call2Settings As BackToBackCallSettings _
)
'Usage
Dim call1Settings As BackToBackCallSettings
Dim call2Settings As BackToBackCallSettings
Dim instance As New BackToBackCall(call1Settings, _
call2Settings)
public BackToBackCall(
BackToBackCallSettings call1Settings,
BackToBackCallSettings call2Settings
)
Parameters
- call1Settings
Type: Microsoft.Rtc.Collaboration.BackToBackCallSettings
Settings for first call leg.
- call2Settings
Type: Microsoft.Rtc.Collaboration.BackToBackCallSettings
Settings for second call leg.
Exceptions
| Exception | Condition |
|---|---|
| ArgumentNullException | Thrown when call1Settings or call2Settings is null. |
| ArgumentException | Thrown when a combination of call1Settings and call2Settings is not acceptable for BackToBackCall. |
Remarks
BackToBackCall can be used to create a back-to-back channel between an incoming call and a new outgoing call.
Before creating a BackToBackCall instance, create and initialize two CallSettings instances - one for the incoming call and the other for the outgoing idle call.