长短信的SMPP的协议展开格式如下：
No. Time Source Destination Protocol Length Info
496 2020-11-09 17:15:43.544923 192.168.2.176 192.168.2.176 SMPP 263 SMPP Deliver_sm (Short Message fragment 1 of 3)
Frame 496: 263 bytes on wire (2104 bits), 263 bytes captured (2104 bits)
Ethernet II, Src: 00:00:00_00:00:00 (00:00:00:00:00:00), Dst: 00:00:00_00:00:00 (00:00:00:00:00:00)
Internet Protocol Version 4, Src: 192.168.2.176 (192.168.2.176), Dst: 192.168.2.176 (192.168.2.176)
Transmission Control Protocol, Src Port: 32942 (32942), Dst Port: 30000 (30000), Seq: 1, Ack: 1, Len: 197
Short Message Peer to Peer, Command: Deliver_sm, Seq: 8388637, Len: 197
Length: 197
Operation: Deliver_sm (0x00000005)
Sequence #: 8388637
Service type: (Default)
Type of number (originator): International (0x01)
Numbering plan indicator (originator): ISDN (E163/E164) (0x01)
Originator address: 85257499868
Type of number (recipient): International (0x01)
Numbering plan indicator (recipient): ISDN (E163/E164) (0x01)
Recipient address: 8617318040001
.... ..00 = Messaging mode: Default SMSC mode (0x00)
..00 00.. = Message type: Default message type (0x00)
01.. .... = GSM features: UDHI indicator (0x01)
Protocol id.: 0x00
Priority level: GSM: None ANSI-136: Bulk IS-95: Normal (0x00)
Scheduled delivery time: Immediate delivery
Validity period: SMSC default validity period
.... ..01 = Delivery receipt: Delivery receipt requested (for success or failure) (0x01)
.... 00.. = Message type: No recipient SME acknowledgement requested (0x00)
...0 .... = Intermediate notif: No intermediate notification requested (0x00)
.... ...0 = Replace: Don't replace (0x00)
Data coding: 0x08
SMPP Data Coding Scheme: UCS2 (ISO/IEC-10646) (0x08)
GSM SMS Data Coding
0000 .... = DCS Coding Group for SMS: SMS DCS: General Data Coding indication - Uncompressed text, no message class (0x00)
..0. .... = DCS Text compression: Uncompressed text
...0 .... = DCS Class present: No message class
.... 10.. = DCS Character set: UCS-2 (16-bit) data (0x02)
GSM CBS Data Coding
0000 .... = DCS Coding Group for CBS: CBS DCS: Language using the GSM 7-bit default alphabet (0x00)
..00 1000 = DCS CBS Message language: Portuguese (0x08)
Predefined message: 0
Message length: 140
Message
GSM Short Message Service User Data
UDH Length: 5
IE Id: SMS - Concatenated short messages, 8-bit reference number (0x00): message 254, part 1 of 3
Message identifier: 254
Message parts: 3
Message part number: 1
Unreassembled Short Message fragment 1 of 3
将Submit或Deliver消息中的esm_class设置为0X40，指示短信体内还有消息头
长短信的消息头：
splitedRef是指短信的序列号1~255；splitedMax是指拆分长短信的条数，splitedSeq是指长短信的第几条。