https://devzone.nordicsemi.com/f/nordic-q-a/70339/discovery-of-psm-availability-parametersHi, I&#39;m trying to understand the PSM availability of my local network. After playing a bit with the RAT and RPTAU values, I found out that using RAT=16~30 secs and RPTAU=~240 secs values the network allows me to use PSM mode. However, it is not aten-USTelligent Community 13Tue, 12 Jan 2021 16:24:42 GMThttps://devzone.nordicsemi.com/thread/288726?ContentTypeID=1Tue, 12 Jan 2021 16:24:42 GMT137ad170-7792-4731-bb38-c0d22fbe4515:cc55e06f-4e28-4596-809f-6dbd5510a26bloumay<p>Hi Didrik,</p> <p>Thanks for clarifying this. I will ask directly the network operator then.</p> <p>Regards,</p> <p>Louis</p><div style="clear:both;"></div>https://devzone.nordicsemi.com/thread/288725?ContentTypeID=1Tue, 12 Jan 2021 16:22:11 GMT137ad170-7792-4731-bb38-c0d22fbe4515:0e2b63d5-bb65-41e1-a592-7f48d2c709a1Didrik Rokhaug<p>Hi,</p> <p>Unfortunately, I don&#39;t think it is possible for the device to discover what values are allowed, other than trying them all.</p> <p>However, if you ask the network operator, they should be able tell you what rules they are using.</p> <p>Best regards,</p> <p>Didrik</p><div style="clear:both;"></div>