https://devzone.nordicsemi.com/f/nordic-q-a/73869/usage-of-multiple-pdp-contextHi As there are 12 PDP context available on nrf9160, I was wondering about the correct usage of them. Usually, my use case involves only 1 context (cid=0). I configure it with the Access Point Name defined by my SIM provider (e.g. `AT+CGDCONT=0,&quot;IPen-USTelligent Community 13Mon, 12 Apr 2021 12:01:45 GMThttps://devzone.nordicsemi.com/thread/304257?ContentTypeID=1Mon, 12 Apr 2021 12:01:45 GMT137ad170-7792-4731-bb38-c0d22fbe4515:4ea7357e-61fe-4cc8-b80e-75379a09567bChraebs<p>After reading through all related forum entries another time, I found that the answer by Didrik in [1] contains answers that are related to my questions.</p> <p>Regarding question 1:</p> <blockquote> <p>CID 0 is used during the attach, while CID 1 (or others) can be used to open additional PDN connections after the initial attach.</p> </blockquote> <p>Regarding question 2:</p> <blockquote> <p>However, if this is allowed, or what they can be used for depends on the network.</p> </blockquote> <p>[1] <a href="https://devzone.nordicsemi.com/f/nordic-q-a/69326/multiple-apn-setting-on-nrf9160">https://devzone.nordicsemi.com/f/nordic-q-a/69326/multiple-apn-setting-on-nrf9160</a></p><div style="clear:both;"></div>