Latest firmware for EC25-AUX Please

IoT Modules LTE Standard Module
1

Hi,

I have a Quectel **EC25-AUX** module (Firmware: **EC25AUXGAR08A03M1G**) installed in a cellular intercom / door phone system in New Zealand.

After the 3G shutdown, the module successfully registers on **LTE Band 28** (Spark network) with good signal, but when anyone calls the SIM number it immediately returns **“User Busy”** on the caller’s phone.

The module responds to AT commands and I have already tried:

  • AT+CLIP=1, AT+CRC=1, AT+QTONEDET=1, AT+CSNS=1, AT+CBST=0,0,1, etc.
  • Forcing LTE only with AT+QCFG=“nwscanmode”,3,1

DTMF detection works, but the device never answers incoming voice calls.

Could you please provide the **latest firmware** for EC25-AUX (or a newer GAR version) that has better voice call handling for intercom applications?

Thank you!

Les

2

Hi there,
The latest FW verison would be EC25AUXGAR08A15M1G_A0.302.A0.302.zip

note: Cross-baseline software version update is not supported. For EC25AUXGAR08A15M1G, “R08” represents the baseline information.

3

Thank You @Firdaus , it works fine now.

4

Hi,
Sure. So, we close the ticket then.
Have a nice day~