https://iot-portal.com Development Blog

October 2022 and we see almost UK wide availability of the 2 IoT bands implemented as part of the 5G roll-out; NB-IoT and LTE-M. Here in Liverpool we have LTE-M on both Vodafone and O2 and NB-IoT on both EE and Vodafone. Checking above ground in Liverpool City Centre shows the following networks available to our BG95-M3 modems: at+cops=?... +cops:(1,"vodafone UK","voda UK","23415",0) 2G(2,"EE","EE","23430",0) 2G(1,"O2 - UK","O2 - UK","23410",0) 2G(1,"O2 - UK","O2 - UK","23410",8) LTE-M(1,"EE","EE","23430",9) NB-IoT(1,"vodafone UK","voda UK","23415",8) LTE-M(1,"vodafone UK","voda UK","23415",9) NB-IoT Obviously above ground we've got loads of options but what these new IoT bands bring is enhanced coverage where...

Just before he popped home Michael did a quick video showing how to set up a 5G GSM Alarm Dialler. These are excellent products and are very simple to set up and use. They have an extremely high level of reliability and will operate for a decade without any user intervention.

When 2G and 3G are gone you will need VoLTE to make calls and a working IMS to send and receive messages. 4G is just for data. There is no native voice channel on 4G. VoLTE is a software layer a bit like having a VoIP app or WhatsApp running off you data for calls. It is obviously much more deeper integrated into your phone's firmware however. In the video Michael demonstrates how the RTU5024 drops back to 3G when a call comes in. It immediately goes back to 4G after. This is because the modem cannot accept 4G voice...

In the video Michael shows us how the TTS system was developed for the 4G GSM intercoms. This system tells installers what is wrong with the setup and how they should go about rectifying it.