Quectel UC20 TCPIP AT Commands Manual V1.2

• About the Document
• Contents
• 1 Introduction
  • 1.1. The Process of Using TCPIP AT Commands
  • 1.2. Description of Data Access Mode
• 2 Description of AT Command
  • 2.1. AT+QICSGP Configure Context
  • 2.2. AT+QIACT Activate PDP Context
  • 2.3. AT+QIDEACT Deactivate PDP Context
  • 2.4. AT+QIOPEN Start Socket Service
  • 2.5. AT+QICLOSE Close Socket Service
  • 2.6. AT+QISTATE Query Socket Service Status
  • 2.7. AT+QISEND Send Data
  • 2.8. AT+QIRD Retrieve the Received TCP/IP Data
  • 2.9. AT+QISWTMD Switch Data Access Mode
  • 2.10. AT+QPING Ping a Remote Server
  • 2.11. AT+QNTP Synchronize Local Time with NTP Server
  • 2.12. AT+QIDNSCFG Configure Address of DNS Server
  • 2.13. AT+QIDNSGIP Get IP Address by Domain Name
  • 2.14. AT+QICFG Configure Optional Parameters
  • 2.15. AT+QIGETERROR Query the Last Error Code
  • 2.16. Description of URC
    • 2.16.1. URC of Connection Closed
    • 2.16.2. URC of Incoming Data
    • 2.16.3. URC of Incoming Connection Full
    • 2.16.4. URC of Incoming Connection
    • 2.16.5. URC of PDP Deactivation
• 3 Description of Error Code
• 4 Example
  • 4.1. Configure and Activate Context
    • 4.1.1. Configure Context
    • 4.1.2. Activate Context
    • 4.1.3. Deactivate Context
  • 4.2. TCP Client Works in Buffer Access Mode
    • 4.2.1. Set up a TCP Client Connection and Enter into Buffer Access Mode
    • 4.2.2. Send Data in Buffer Access Mode
    • 4.2.3. Receive Data from Remote Server in Buffer Access Mode
    • 4.2.4. Close Connection
  • 4.3. TCP Client Works in Transparent Access Mode
    • 4.3.1. Set up a TCP Client Connection and Enter into Transparent Access Mode
    • 4.3.2. Send Data in Transparent Access Mode
    • 4.3.3. Receive Data from Remote Server in Transparent Access Mode
    • 4.3.4. Close TCP Client
  • 4.4. TCP Client Works in Direct Push Mode
    • 4.4.1. Set up TCP Client Connection and Enter into Direct Push Mode
    • 4.4.2. Send Data in Direct Push Mode
    • 4.4.3. Receive Data from Remote Server in Direct Push Mode
    • 4.4.4. Close TCP Client
  • 4.5. TCP Server Works in Buffer Access Mode
    • 4.5.1. Start a TCP Server
    • 4.5.2. Accept TCP Incoming Connection
    • 4.5.3. Receive Data from Incoming Connection
    • 4.5.4. Close TCP Server
  • 4.6. Example of UDP Service
    • 4.6.1. Start UDP Service
    • 4.6.2. Send UDP Data to Remote
    • 4.6.3. Receive Data from Remote
    • 4.6.4. Close UDP Service
  • 4.7. PING
  • 4.8. Synchronize Local Time
  • 4.9. Example of Getting Last Error Code