Recently, we changed our policy not to change the phone number by him/herself.
The reason is,
Some members change the phone munber to a random number, in order to register again
only to post her profile on top of the page.
But the result is, the owner of random numbers get the calls and complians to Nannyjob.
We can expect that members can be uncomfortable by this change but please understand
this is to prevent unintended victims by random phone number.
If you want to change your phone number, please e-mail to firstname.lastname@example.org.