Knowledge Base

PPP / MMS / FLASH All subjects related to procedures for PPP setup and termination, modes for PPP connection, MMS application interface for sending messages including multimedia objects (image, audio, rich text, etc.), internal flash. Call In order to make or receive a call, the cellular terminal must be switched on in a service area with adequate cellular signal strength. RF When the receiver and transmitter in cellular terminal is ON, it receives and transmits radio frequency signals. Serial Serial port is used for AT command communication, data transmission, GNSS NMEA sentences output, software, debugging, firmware upgrade and voice over USB. PHB Read/write/search the phonebook entries from the current phonebook memory storage. Audio PCM interface is used for audio function with external codec, supports echo cancellation and noise suppression. SIM Card In order to enhance the reliability and availability of the (U)SIM card in customers’ applications, please follow the criteria from our hardware design note in (U)SIM circuit design. SMS The format of messages can be either PDU mode (entire TP data units used) or text mode (headers and body of the messages given as separate parameters). TCP/UDP Our modules provide the following socket services: TCP client, UDP client, TCP server and UDP server. Power Power design for the module is very important, as the performance of the module largely depends on the power source.
Topic Replies Activity
About the Knowledge Base category 1 April 10, 2019
QUCTEL SPI communication problem 2 February 14, 2020
Mapping linux console to the USB interface 3 January 19, 2020
Getting started with BG96 and MCU through UART 12 January 6, 2020
Store and play audio files in a call 4 December 26, 2019
How to use CP2102 serial cable for UART communication 2 November 22, 2019
How to enable hot-swap function of SIM card? 5 November 6, 2019
EC20 high power consumption 2 October 31, 2019
What are the design considerations when using embedded antenna?
4 October 8, 2019
Designing Power Circuit for M95 GSM Module according to ATEX considerations 5 September 30, 2019
Does internal modem stack do DNS caching 3 September 29, 2019
Is it possible to use diode to convert 5V to 4.4V for power supply? 2 September 22, 2019
M66 modem: CME ERROR: SIM not inserted 6 September 10, 2019
What is CREG command meant to be? 4 September 10, 2019
How to match the UART level between MCU and module? 2 September 10, 2019
TCP/UDP BC95-G (NB-IoT) power usage 4 September 2, 2019
What is the audio output capability of the module? 2 August 29, 2019
What could be the reason why the call somehow hangs off when you use ATD to make a call? 2 August 29, 2019
Can the RF pin endure thunder stroke?
2 August 28, 2019
What is the difference between CGDCONT and QICSGP? 2 August 23, 2019
What are the possible reasons for the failure of PPP dial up? 2 July 25, 2019
Knowledge database policy 2 May 10, 2019