4G拨号脚本

1.quectel-ppp

# /etc/ppp/peers/quectel-pppd # Usage:root>pppd call quectel-pppd #Modem path, like /dev/ttyUSB3,/dev/ttyACM0, depend on your module, default path is /dev/ttyUSB3 /dev/ttyUSB3 115200 #Insert the username and password for authentication, default user and password are test user "test" password "test" # The chat script, customize your APN in this file connect 'chat -s -v -f /etc/ppp/peers/quectel-chat-connect' # The close script disconnect 'chat -s -v -f /etc/ppp/peers/quectel-chat-disconnect' # Hide password in debug messages hide-password # The phone is not required to authenticate noauth # Debug info from pppd debug # If you want to use the HSDPA link as your gateway defaultroute # pppd must not propose any IP address to the peer noipdefault # No ppp compression novj novjccomp noccp ipcp-accept-local ipcp-accept-remote local # For sanity, keep a lock on the serial line lock modem dump nodetach # Hardware flow control nocrtscts remotename 3gppp ipparam 3gppp ipcp-max-failure 30 # Ask the peer for up to 2 DNS server addresses usepeerdns

2.quectel-chat-connect

# /etc/ppp/peers/quectel-chat-connect ABORT "BUSY" ABORT "NO CARRIER" ABORT "NO DIALTONE" ABORT "ERROR" ABORT "NO ANSWER" TIMEOUT 30 "" AT OK ATE0 OK ATI;+CSUB;+CSQ;+CPIN?;+COPS?;+CGREG?;&D2 # Insert the APN provided by your network operator, default apn is 3gnet OK AT+CGDCONT=1,"IP","cmnet",,0,0 OK ATD*99*1# CONNECT

3.quectel-chat-disconnect

# /etc/ppp/peers/quectel-chat-disconnect ABORT "ERROR" ABORT "NO DIALTONE" SAY "\nSending break to the modem\n" "" +++ "" +++ "" +++ SAY "\nGoodbay\n"

4.quectel-ppp-kill

#!/bin/sh timeout=5 killall -15 pppd sleep 1 killall -0 pppd while [ $? -eq 0 ] do timeout=`expr $timeout - 1` if [ $timeout -eq 0 ] then exit 1 fi sleep 1 killall -0 pppd done if [ $? -ne 0 ] then killall -9 pppd fi

4G拨号调试相关链接： https://blog.csdn.net/weixin_44981258/article/details/103674182