Hi I am trying to send text message using a Nokia 6210 but its giving me error
The error is the follow
+CMS EROOR:69

I type
at+cmgf=1
reply OK
them I type
at+cmgs="mynumber" I have tried "+mynumber" and "+country code mynumber"
>hello (this is text i supposed) press Ctrl+z
and it reply
+CMS EROOR:69
Do you know what's going on and what I am doing wrong?

Regards