Impossible to enter a phone number (only 8 digits ?)

[deltafox]

I tried to enter a phone number +212 5 24 43 39 34 at that place
http://www.google.com/mapmaker?gw=55&editids=0sKCl2N819xMzzvZs4&iwloc=0_0
it was rejected (message "please correct telephone number")

Even without the country prefix (00 212 or +212) or in national form
(which is 10 digits in Morroco since early 2009) 0524433934 it is
impossible to enter it. It seems that GMM only accepts 8 digits

I saw issue 44 but this is more than a rigid format, it is impossible
to enter a correct number