PduHeader
- X-Mms-Status Field：彩信状态，对应表字段pdu.st
STATUS_EXPIRED = 0x80;
STATUS_RETRIEVED = 0x81;
STATUS_REJECTED = 0x82;
STATUS_DEFERRED = 0x83;
STATUS_UNRECOGNIZED = 0x84;
STATUS_INDETERMINATE = 0x85;
STATUS_FORWARDED = 0x86;
STATUS_UNREACHABLE = 0x87;
- X-Mms-Message-Type field types：信息类型，对应表字段pdu.m_type
MESSAGE_TYPE_SEND_REQ = 0x80; 发送请求：手机-->mmsc 由SendTransaction.java处理
MESSAGE_TYPE_SEND_CONF = 0x81; 发送响应：mmsc-->手机
MESSAGE_TYPE_NOTIFICATION_IND = 0x82;接收通知消息：mmsc-->手机 由NotificationTransaction.java处理
MESSAGE_TYPE_NOTIFYRESP_IND = 0x83;接收通知消息恢复：手机-->mmsc
MESSAGE_TYPE_RETRIEVE_CONF = 0x84; 接收彩信正文：mmsc-->手机 由PushReceiver.java、RetrieveTransaction.java处理
MESSAGE_TYPE_ACKNOWLEDGE_IND = 0x85; 发送通知已收到：手机-->mmsc
MESSAGE_TYPE_DELIVERY_IND = 0x86; 接收送达报告消息：mmsc-->手机 由PushReceiver.java处理
MESSAGE_TYPE_READ_REC_IND = 0x87; 发送阅读报告：手机-->mmsc 由ReadRecTransaction.java处理，没有对应的ack信息，说明阅读报告并不重要
MESSAGE_TYPE_READ_ORIG_IND = 0x88; 接收阅读报告：mmsc-->手机 由PushReceiver.java处理
PushReceiver.java接收三类信息，接收到后直接在pdu表中插入一条记录：
MESSAGE_TYPE_NOTIFICATION_IND 通知信息记录会在彩信正文下载后被删除掉，因此_id会有跳跃
MESSAGE_TYPE_DELIVERY_IND 送达报告记录会和彩信正文记录并存
MESSAGE_TYPE_READ_ORIG_IND 阅读报告会和送达报告记录、彩信正文记录三条并存
- X-Mms-Message-Class field types：信息类别，对应表字段pdu.m_cls
MESSAGE_CLASS_PERSONAL = 0x80;
MESSAGE_CLASS_ADVERTISEMENT = 0x81;
MESSAGE_CLASS_INFORMATIONAL = 0x82;
MESSAGE_CLASS_AUTO = 0x83;
MESSAGE_CLASS_PERSONAL_STR= "personal";
MESSAGE_CLASS_ADVERTISEMENT_STR= "advertisement";
MESSAGE_CLASS_INFORMATIONAL_STR= "informational";
MESSAGE_CLASS_AUTO_STR= "auto";
- X-Mms-Response-Status field types：应答状态，对应表字段pdu.resp_st
RESPONSE_STATUS_OK = 0x80;
RESPONSE_STATUS_ERROR_UNSPECIFIED = 0x81;
RESPONSE_STATUS_ERROR_SERVICE_DENIED= 0x82;
RESPONSE_STATUS_ERROR_MESSAGE_FORMAT_CORRUPT = 0x83;
RESPONSE_STATUS_ERROR_SENDING_ADDRESS_UNRESOLVED= 0x84;
RESPONSE_STATUS_ERROR_MESSAGE_NOT_FOUND = 0x85;
RESPONSE_STATUS_ERROR_NETWORK_PROBLEM = 0x86;
RESPONSE_STATUS_ERROR_CONTENT_NOT_ACCEPTED= 0x87;
RESPONSE_STATUS_ERROR_UNSUPPORTED_MESSAGE = 0x88;
RESPONSE_STATUS_ERROR_TRANSIENT_FAILURE = 0xC0;
RESPONSE_STATUS_ERROR_TRANSIENT_SENDNG_ADDRESS_UNRESOLVED= 0xC1;
RESPONSE_STATUS_ERROR_TRANSIENT_MESSAGE_NOT_FOUND = 0xC2;
RESPONSE_STATUS_ERROR_TRANSIENT_NETWORK_PROBLEM = 0xC3;
RESPONSE_STATUS_ERROR_TRANSIENT_PARTIAL_SUCCESS = 0xC4;
RESPONSE_STATUS_ERROR_PERMANENT_FAILURE = 0xE0;
RESPONSE_STATUS_ERROR_PERMANENT_SERVICE_DENIED = 0xE1;
RESPONSE_STATUS_ERROR_PERMANENT_MESSAGE_FORMAT_CORRUPT = 0xE2;
RESPONSE_STATUS_ERROR_PERMANENT_SENDING_ADDRESS_UNRESOLVED = 0xE3;
RESPONSE_STATUS_ERROR_PERMANENT_MESSAGE_NOT_FOUND = 0xE4;
RESPONSE_STATUS_ERROR_PERMANENT_CONTENT_NOT_ACCEPTED = 0xE5;
RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_LIMITATIONS_NOT_MET = 0xE6;
RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_REQUEST_NOT_ACCEPTED= 0xE6;
RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_FORWARDING_DENIED = 0xE8;
RESPONSE_STATUS_ERROR_PERMANENT_REPLY_CHARGING_NOT_SUPPORTED = 0xE9;
RESPONSE_STATUS_ERROR_PERMANENT_ADDRESS_HIDING_NOT_SUPPORTED = 0xEA;
RESPONSE_STATUS_ERROR_PERMANENT_LACK_OF_PREPAID = 0xEB;
RESPONSE_STATUS_ERROR_PERMANENT_END = 0xFF;