FX100 DTMF Detection Mode

As specified in the AT Command Interface Guide document, the +WDDM AT command could be used to enable DTMF detection.

I have set it to AT+WDDM=1 before a call is established.

However, nothing was returned from the modem after the remote side keys were pressed.
From the document, the expected return should be

Any idea to make DTMF detection working?

Thank you.

Would you please share the FW version tested?

Thx.

FW version should be 7.50

AT+CGMR returns:

Hi,

Maybe FW issue?

Here’s my test log using latest FW:

ati3

R7.53.0.201403060723.FX100 1784920 030614 07:23

OK
AT+WDDM=1

OK

RING
ata

OK

+WDDI: "1",20

+WDDI: "2",20

+WDDI: "3",20

+WDDI: "4",20

+WDDI: "5",20

+WDDI: "6",20

+WDDI: "7",20

+WDDI: "8",20

+WDDI: "9",20

+WDDI: "0",20

+WDDI: "*",20

+WDDI: "#",20

NO CARRIER

+WIND: 6,1

The FW running in your FX100 is 1 year old…
Can you please upgrade to latest FW and test?

Thx.

For Q2698, Audio AT commands were not supported on 7.50.A2 firmware. They were added in FW 7.52.A1. You should be able to see it in FW 7.52.A1 release notes, that is expected soon.