SIP .NET Class Library
SIP .NET Class Library
SIP .NET
Independentsoft.Sip.Methods
Cancel Class
Cancel Properties
ErrorInfo Property
RecordRoute Property
Route Property
Server Property
Supported Property
Timestamp Property

# Cancel Properties

The Cancel type exposes the following members.

Properties

| Name | Description
--- | --- | ---
| Body | Gets or sets the request body. (Inherited from Request.)
| Branch | Sets or gets branch parameter in Via header. (Inherited from Request.)
| CallID | Gets or sets Call-ID header field. The Call-ID header field is mandatory in all requests. It is used to uniquely identify a call between two clients. If is not set then the SipClient will set this header. (Inherited from Request.)
| ContentLength | Gets o sets Content-Length header field. The Content-Length header field indicates the size of the request body. If no body is present in a request, then the Content-Length header field value must be zero. (Inherited from Request.)
| ContentType | Gets or sets Content-Type header field. The Content-Type header field is used to specify the Internet media type in the request body. Media types have the familiar form type/sub-type. If this header field is not present, application/sdp is assumed. (Inherited from Request.)
| CSeq | Gets CSeq header field. The CSeq header field is a required header field in every request. The CSeq header field contains a number that increases for each request. Usually, it increases by 1 for each new request, with the exception of CANCEL and ACK requests, which use the CSeq number of the INVITE request to which it refers. (Inherited from Request.)
| Date | Gets or sets Date header field. The Date header field is used to convey the date when the request is sent. (Inherited from Request.)
| ErrorInfo | Gets or sets Error-Info header field. The Error-Info header field provides a pointer to additional information about the error status response.
| From | Gets or sets From header field. The From header field is a required header field that indicates the originator of the request. (Inherited from Request.)
| Header | Gets the request header. (Inherited from Request.)
| MaxForwards | Gets or sets Max-Forwards header field. The Max-Forwards header field is used to indicate the maximum number of hops that a the request may take. The value of the header field is decremented by each proxy that forwards the request. If is not set then the SipClient will set this header. (Inherited from Request.)
| Method | Gets the request method. (Inherited from Request.)
| RecordRoute | Gets or sets Record-Route header field. The Record-Route header field is used to force routing through a proxy for all subsequent requests in a session between two clients.
| Route | Gets Route header field. The Route header field is used to provide routing information for requests.
| Server | Gets Server header field. The Server header field contains information about the software used by the server to handle the request.
| SessionDescription | Returns the request body as SessionDescription if Content-Type is "application/sdp", otherwise returns null. Sets request body and sets Content-Type as "application/sdp". (Inherited from Request.)
| Supported | Gets or sets Supported header field. The Supported header field enumerates all the extensions supported by the client or server.
| Timestamp | Gets or sets Timestamp header field. The Timestamp header field describes when the client sent the request to the server. The time format is not specified.
| To | Gets or sets To header field. The To header field is a required header field in every request used to indicate the recipient of the request. (Inherited from Request.)
| Uri | Gets or sets request URI. It indicates the user or service to which this request is being addressed. (Inherited from Request.)
| Via | Gets or sets Via header field. The Via header field indicates the path taken by the request so far and indicates the path that should be followed in routing responses. The "branch" parameter in the Via header field values serves as a transaction identifier, and is used by proxies to detect loops. The Via header field value contains the transport protocol used to send the message, the client's host name or network address, and possibly the port number at which it wishes to receive responses. The Via header field value can also contain parameters such as "maddr", "ttl", "received" and "branch". (Inherited from Request.)

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See Also

#### Reference

Cancel Class
Independentsoft.Sip.Methods Namespace

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