hi @Christos1080 , happy to have you on board!
To answer your questions:
3. Yes, you can use iotcreators sim cards under cosmote in greece (nb-iot only, lte-m not supported)
4. yes absolutely. Also, if you want to use iotcreators services, the only way to access them is to use iotcreators sim cards
5. I searched for your modem and it seems that supports nb-iot and lte-m, so itcreators sim cards should work

If you have any other questions, do not hesitate to ask! 😉

Best Regards
Marco

hi @Yentl1193, can you please write to support@iotcreators.com specifying your sim card iccid and imei? Thank you!

Best Regards
Marco

@magnatron Sorry for the late reply. I just created IMEI / UDP device and it worked again.

But you have to be patient with the portal. Sometimes repeating things helps 🙂

@Reinier-Hasper yes exactly, your device under mobile connectivity can open a tcp socket with the remote server and have a bidirectional channel in this way, but not viceversa

@Herr-Bruns,
Sorry for my long silence!
I just wanted to inform you that eDRX has eventually been enabled a few weeks ago and is available across our complete LTE-M network.
Please let me know if you have any questions when testing this feature.
Kind regards,
Ronan Lacroix

Hi @Uta,

Thanks a lot for your swift response! That clarifies a lot 🙂

Best wishes,
Daan

@Jeroen-van-Bussel of course you can work on automatic mode, the modem would scan through the whole PLMN list until it finds a network. This can take a while and I agree, it’s the only thing that makes sense for devices in non-static use cases.

@WEB1736359896030080 The maximum of 120 messages per device per day is a fixed number and cannot be changed. The frequency on how often you sent your data needs to be managed on your device.

@Lauwie007
I have not tested it myself, but I guess your live test has just proven it, hasn’t it? 😊
Keep in mind that this time is provided by the local network in which you are actually roaming, so if you’re roaming in say, the Vodafone UK network, this time and associated timezone will be provided by Vodafone UK (if supported as just discussed).
Kind regards, Ronan

Hello @Mikael-Guenais,
NB-IoT roaming is available in France via SFR. You can also always find up-to-date information on our roaming partners in our documentation library here.

I will contact you about the SIM card directly from our support email.

Best regards
Oliver

I second what Uta said for roaming use-cases.

For non-roaming use-cases, I would recommend to always set the band and the PLMN ID to ensure faster attach. So please be more patient with the attach time if you don’t set these values.

Hi Matthew,

for NB-IoT there is a technical limitation of 1024 bytes (but this also includes the protocol information). According to our no harm to network guidelines you shouldn’t use more than 1 MB/device/month for NB-IoT.

Hi,
thanks for your answers, very interesting information.
I’ll try it after that date.

Actually the device with the 1nce sim card goes into PSM sleep and also receives GPS-positions but wakes up all 15-20minutes. Also with longer sleep times.

Kind regards,
Christian

I can confirm the issue. I can reproduce it. The problem occurs not due to LTE-M but due to this specific APN (m2m.public.nl). @Uta will take care of this

@aliza-izaton As mentioned earlier, I strongly recommend using a python-based solution.

@mybeepad-0

One day you will have dreams about AT-commands

(I am talking from experience) 😅

@HNEE Hi Daniel, many thanks. I will check.
I am in the process of acquiring documentation from Quectel distributor but community can provide documents much faster!
Thanks,
Peter

@rxtx Perfect!

Hi @Tibor-Keller you can have a look at this online coverage map for Magyar Telekom’s NB-IoT network https://www.telekom.hu/static-la/sw/file/Nb_IoT_Lefedettseg.pdf

Copy / paste what one of my colleagues wrote:

I must admit I am not sure regarding the polarization used on our cell sites, an article stating that most operators use +/- 45° is probably correct. I’ll try to find out and let you know.

That said, knowing the base station antenna’s polarization is not as important as it might appear at first glance. In fact, it only matters in cases where a direct, uninterrupted, line-of-sight exists between the base station antenna and the UE antenna. In most practical cases, the signal the UE sees (and what the base station sees in the uplink case) is a mixture of signals that have been reflected off of and scattered by all kinds of objects (mountains, buildings, trees, vehicles etc.) in and around the line-of-sight. This is called “multipath”.

In a multipath environment, there is no way to predict the polarization of the signal at the receiving antenna, even if the polarization of the transmitting antenna is well known.

This is why the more complex variants of LTE (CAT.1 and above) require at least two antennas, which are typically set up to be sensitive to signals with different polarization.

Hi @uta, thanks for the tip. You’re right, I was using the wrong APN for the type of SIM I have. I have an easy connect SIM, and for that the APN should be just “iot.t-mobile.nl” it turns out (without the CDP bit). Now the UE attaches & registers to the network perfectly fine 😃