Put the additional extension headers on extensionHeader to be included in request based on requestType.

Namespace:  Microsoft.Rtc.Signaling
Assembly:  Microsoft.Rtc.Collaboration(in Microsoft.Rtc.Collaboration.dll)

Syntax

Visual Basic (Declaration) 
Sub 
GetExtensionHeaders ( _
	
requestType 
As 

SipSubscription

.
.
::
.
RequestType, _
		<
OutAttribute> 
ByRef 
extensionHeaders 
As 
IEnumerable(
Of 

SignalingHeader) _
)
C# 
void 
GetExtensionHeaders(
	

SipSubscription

.
.
::
.
RequestType 
requestType,
	
out 
IEnumerable<

SignalingHeader> 
extensionHeaders
)
Visual C++ 
void 
GetExtensionHeaders(
	

SipSubscription

.
.
::
.
RequestType 
requestType, 
		[
OutAttribute] 
IEnumerable<

SignalingHeader^>^% 
extensionHeaders
)
JavaScript 
function 
getExtensionHeaders(
requestType, 
extensionHeaders);

Parameters

requestType
Type: Microsoft.Rtc.Signaling . . :: . SipSubscription . . :: . RequestType
Subscription request type.
extensionHeaders
Type: IEnumerable < (Of < ( SignalingHeader > ) > ) %
List of extension headers to be added in subscription request.

See Also