HILONC V2 potential bug

IoT Modules Legacy HL Series
1

When a call arrives, I send some AT commands to set the audio parameters:

AT+VGT=132;+VGR=132;+CLVL=5;+KST=0;+KECHO=2;+KNOISE=1,1

When a call arrives, I have:

*PSCSC: 1, 10,, "xxxxxxxx", 129, 0,,,

*PSCSC: 1, 11,,,,,,,
AT+VGT=132;+VGR=132;+CLVL=5;+KST=0;+KECHO=2;+KNOISE=1,1

OK

*PSCSC: 1, 13,,,,,,,

+CRING: VOICE

+CLIP: "xxxxxxxx",129,"",,"",0
ATA

*PSCSC: 1, 14, 0,,,,,,

OK

Everything is OK! But if I send the commands for audio configuration, a little later (after the call enters state 14), the HL reboots!

*PSCSC: 1, 10,, "xxxxxxxx", 129, 0,,,

*PSCSC: 1, 11,,,,,,,

*PSCSC: 1, 13,,,,,,,

+CRING: VOICE

+CLIP: "xxxxxxxx",129,"",,"",0
AT+VGT=132;+VGR=132;+CLVL=5;+KST=0;+KECHO=2;+KNOISE=1,1

OK

+CRING: VOICE

+CLIP: "xxxxxxxx",129,"",,"",0
ATA

+KSUP: 0

+CREG: 0

+CREG: 2

+CREG: 1

+CGREG: 2

+CGREG: 1

Am I doing something wrong?

Thanks

2

Please don’t send these commands twice in a short time.

“AT+CLVL=5” should be sent during a call, and other commands should be sent before the call and needs to be sent only once.

Please change the sequence as below.

Before the call,
AT+VGT=132;+VGR=132;+KST=0;+KECHO=2;+KNOISE=1,1

During the call,
AT+CLVL=5

3

According to the manual, the AT+KST command only has effect if CLVL=5. Page 308 of manual URD1– OTL 5725.1– 008 / 72807 Edition 15:

What do you mean by “only once”?

Thanks