Unable to send SMS from my Mobicarte

Hello,

Go to this site if your operator is "orange":
https://www.orange.fr/portail?u=http%253A//mdsp.orange.fr/CSP_otap_fr/frontoffice/defaut.jsp%253Fasklanguage%253Dfr%2526service%253DOFRPOSTPAID

Then choose the brand and the model of your phone.
Then choose the SMS/MMS settings and click on "auto".
Afterwards enter your phone number and click on validate.
You will receive a message asking you to confirm the configuration and you will say "yes" and normally it's fine.

If it doesn't work there is another solution.
In the settings of your phone you should have an option "restore initial configuration" accept and you should again send SMS...

There you go I hope I helped you
Bye