hi is there a new manual after January 8 2020, kindly provide a link
No, It isn’t.
The latest AirPrime - HL78xx - AT Commands Interface Guide rev 10 ( January 08, 2020)
https://source.sierrawireless.com/resources/airprime/software/airprime_hl78xx_at_commands_interface_guide/#sthash.oKLBWCGs.dpbs
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thank you for your reply. some were i read on the forum(i dont know exactly), that there is another at command manual march revision. well if it is not available then the above comment is the solution