Using two UARTS setup for HL78xx, where one UART is used AT commands and a second for PPP traffic

IoT Modules
9

How about setting like this?

I can use both UART as AT port:

ati3
HL7812.5.7.3.0

OK
at!entercnd="A710"
OK


at+Switracemode?
+SWITRACEMODE: RnD,9,2,0

OK
AT+SWITRACEMODE=AT
OK
at+cfun=1,1
OK