Ok then I will go the hard way 
The electronic lab of our university owns a spectrum analyzer. Next week I will try to investigate which command produces traffic and which not
Im a little bit overcorrect in building clean solutions. Sorry for consuming your time
I thought the same because the device always gets the same IP address.
But anyway I have to execute the commands for connecting, receiving the Ip, and opening the udp connection every time the device wakes up, which feels a little bit wrong because the context should already be opened.
Hi @afzal_m,
thank you so much (and of course your colleagues) for your efforts.
Indeed the SIM7000 stays attached to the cell but the PDN/PDP context is lost. Before the modem enters PSM, it deactivates the PDP context, which is logged via the Serial connection.
Maybe you can ask you colleagues for a short example of how to maintain the PDN/PDP context during PSM? In certain forums a lot of users are facing the same problem.
What I have done:
...General config
# Start PDP Context
AT+CIICR
#Receive IP
AT+CIFSR
#Connect to iotcreeators
AT+CIPSTART="UDP","172.27.131.100",15683
...Send Data
After a few seconds the device enters PSM and sends the following notifications:
+PDP: DEACT
+CPSMSTATUS: "ENTER PSM"
Maybe I just forgot one setting to tell the modem to keep the PDP context active?
Edit: After sending
AT+CIICR
after leaving PSM, the device gets the same IP-Address and the connection is established fast enough for me
I have read in your guidelines that you want devices do not reestablish PDN contexts within two hours. I just want to fulfill that requirement So reconnecting after leaving the PSM is not my preferred way to go…
Hi together
Did anyone got the Power Saving Mode of the SIM7000 to work?
If I send the following commands the device is sleeping after a few seconds.
AT+CSCLK=1
AT+CPSMS=1
The Problem is that when I pulldown the power key pin of the SIM7000, the devices wakes up as expected but the connection is lost and needs to be reestablished which produces unnecessary traffic.
Is anyone facing the same issue or has a solution?