2 question for help

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This topic has 1 reply, 2 voices, and was last updated 6 years, 9 months ago by Hari Prasaath K.

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March 2, 2016 at 11:35 am #4335

roba
Participant

Hi all,

i have 2 question

i am using sim900 with At commands

one question is

does the AT+CSQ effects the GSM/GPRS signal or only the network strength signal?

second question

when i use AT+CGREG sometimes i get answer of AT+CGREG 0.0 which means that i cant get a GSM signal.

But if i use instead using AT+CGREG i use AT+CGATT and then i get A gprs and it works fine ,

is there any difference ?

Thanks.

September 5, 2018 at 4:55 pm #14900

Hari Prasaath K
Participant

The two commands has different properties

AT+CGREG returns the registration details of the device and the command and the command AT+CGATT is used to attach or detach the device to the pocket domain services.
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