If you are a new Gmail user and opening a new account, then you would need to activate your account by entering the right phone number. Google with send an activation code on that number and you will have to enter the same in the required field for activation. Sometimes due to a number of reasons users do not able to successfully complete this step. But, without going through this step successfully one will not able to access his account. If you get stuck at this step, there is no need to worry or call your friends and relatives asking for help. Simply just pick your phone and dial the toll free Gmail technical support customer care service number
and the rest assured to be taken care of.