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by anonymous
hi,

I have a TRB140 modem with sim card my question is simole can this modem feceive datagram sended over gprs ?

thanks

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by anonymous

Hello,

The TRB140 gateway features an LTE CAT4 modem that's compatible with 3G and 2G networks, which includes GPRS and EDGE. Both GPRS and EDGE operate using packet-switching technology, allowing them to handle IP packets (thus, datagrams). However, remember that the data transmission speeds of 2G technologies like GPRS and EDGE are significantly lower compared to 3G or 4G. For instance, TRB140 on 2G can offer peak speeds of up to 236.8 kbps, but in practice, the actual speed can be much lower due to environmental factors such as physical obstacles, signal interference, distance from the cell tower, and network congestion.

If packets are being sent from the internet to the TRB140, it's important to note that they will be blocked by the device's default firewall settings. In order to receive packets from the internet, you'll need to modify these firewall settings to allow incoming datagrams to the TRB140 and/or its LAN network. Firewall information on how to filter (allow, reject, or drop) packets from other zones can be found on our wiki page here.

Kind Regards,