/**
* Generate canonical form of the header.
*
* @return String
*/
public String encodeBody() {
return callId.encode();
}
/**
* Returns the Call-Id of InReplyToHeader. The CallId parameter uniquely identifies a series of
* messages within a dialogue.
*
* @return the String value of the Call-Id of this InReplyToHeader
*/
public String getCallId() {
if (callId == null) return null;
return callId.encode();
}