/** 确认会话收到请求 */
public SipcRequest createAckRequest(String uri) {
SipcRequest req = this.createDefaultSipcRequest(SipcMethod.ACK);
req.addHeader(SipcHeader.TO, uri);
req.setNeedReplyTimes(0);
return req;
}
/** 开始群会话 */
public SipcRequest createInviteRequest(String uri, Port localPort) {
SipcRequest req = this.createDefaultSipcRequest(SipcMethod.INVATE);
req.addHeader(SipcHeader.TO, uri);
req.addHeader(SipcHeader.SUPPORTED, "text/html-fragment");
// req.addHeader(SipcHeader.SUPPORTED, "text/plain");
req.addHeader(SipcHeader.SUPPORTED, "multiparty");
req.addHeader(SipcHeader.SUPPORTED, "nudge");
req.addHeader(SipcHeader.SUPPORTED, "share-background");
req.addHeader(SipcHeader.SUPPORTED, "fetion-show");
req.setNeedReplyTimes(2); // 需回复两次
// 正文是一些固定的参数
StringBuffer buffer = new StringBuffer();
buffer.append("v=0\r\n");
buffer.append("o=-0 0 IN " + localPort.toString() + "\r\n");
buffer.append("s=session\r\n");
buffer.append("c=IN IP4 " + localPort.toString() + "\r\n");
buffer.append("t=0 0\r\n");
buffer.append("m=message " + Integer.toString(localPort.getPort()) + " sip " + uri);
req.setBody(new SipcBody(buffer.toString()));
return req;
}