@GioGi  @OverBurn I also have this kind of error messages (it's a never ending loop in the logfile), but VoLTE does work in my case, and I can use my analog phone device - so I do not care for these messages in the logfile, although they are a bit confusing...

@OverBurn 

Si, direi di provare con l'0assistenza.

Comunque se quando arriva quello nuovo cambiasse qualcosa, vi aggiorno.

@OverBurn

Si, puoi provare a chiedere all'assistenza sperando che risolva.

@TP-Link 

I have the same problem with ISP  Ho mobile: i cannot make VoLTE phone calls; I get the same errors:

ERROR: Get sim card number failed (0).

ERROR: 0x00000010 QMI_ERR_NOT_PROVISIONED

I cannot believe the router is faulty since it has the same problems of the other user. The SIM works properly on a smartphone with VoLTE.

The router is brand new.

I have already contacted my ISP and the problem is not related to the ISP.

If the problem cannot be solved, I will send back to the seller.

Thanks for your help

Regards

TP-Link wrote

@GioGi 

Hi, thanks for the quick reply.

The router does not support SSH login yet so it did not provide the option to input the password.

Later, I would follow up on your case via email, and please have a check of your email box.

At the same time, could you please reply to my email with the following information:

1. may I know who is your ISP？
2. Could you please send me some pictures of your VOLTE configuration?
3. Please also save the whole system log to me;

Thank you very much.

@rmol 

Thanks for the reply. 

I still do not know if the problem can be fixed in the future without hw repair.

I do not have another SIM card with VoLTE with different ISP.

@rmol 

Thank you for information

@GioGi  @jimmy6500 @OverBurn @TP-Link   

According to the Amazon reviews for this device https://www.amazon.it/TP-Link-TL-MR6500v-Wireless-configurazione-smontabili/product-reviews/B08N5FCWX7/ref=cm_cr_arp_d_viewopt_srt?ie=UTF8&reviewerType=all_reviews&formatType=current_format&pageNumber=1&sortBy=recent  (please scroll to the bottom part of the page - the upper part also comprises reviews for other devices), there seems to be a VoLTE problem for the Italian provider Ho Mobile - but not for other Italian providers like Wind or Iliad.

@TP-Link but the aforementioned error messages also appear for other providers (o2 Germany in my case) and should be corrected in a future firmware version.