Voice calls with EG25G-GC

IoT Modules LTE Standard Module
1

Hello,

Actually testing EG25G-GC modem, it seems that voice call is not supported.

ATD061234;

gives “NO CARRIER”

Incoming calls aren’t notified by the modem.

Firmware EG25GGCR07A02M1G

Is there a firmware with voice support ?

Best regards

Stephan

2

Hi @RadeoCom

The current firmware supports voice call functionality. The “NO CARRIER” response is likely due to software configuration or network registration status.

Could you please help to confirm the following:

  1. Is the SIM card voice-call enabled, and can the SIM make/receive calls when used in a phone?
  2. What network/operator and APN are being used?
  3. Please share the AT results logs of AT+CPIN?, AT+CSQ, AT+CIND?, AT+COPS?, AT+CREG?, AT+CGREG?, and AT+CEREG?.

I have also sent a follow-up email regarding the AT command manual to your email address. Kindly check your email.

3

Hi Saarvish

We used exactly the same SIM and test software than usually. We just replace an EG25G-GB module by this EG25G-GC
SMS work fine in/out, thus network registration is ok

4

at+qcfg=“ims”

Should be 1,1 (in Australia at least for volte)

at+qmbncfg=“autosel”

Should be 1 also

After that I set my new modules to a random mbn

at+qmbncfg=“list” and the at+qmbncfg=“select”,“some mbn”

Then power cycle

at+cfun=1,1

None of these commands will work if the Sim isn’t registered to a network.

5

Hi @RadeoCom,

I have sent you a follow up email to your email address, kindly check.

6

Hi Richard

Well… my fault… voice is fine with EG25G-GC, it was a SIP issue on our side not routing correctly the RTP coming from voice…

Thanx for support