How to change the APN

hie,

I would like to change the APN because i have a problem with the GPRS connection.

I try AT+CGDCONT: 1,“IP”,“m2minternet”,“0.0.0.0”,0,0

then when i check the APN i have:

+CGDCONT: 1,“IP”,“websfr”,“0.0.0.0”,0,0

OK

i would like to change websfr by m2minternet but i didn’t manage.

if somebody have an idea…

thanks

Jérôme