Hi! I am Justin. Please give me a few minutes to go over your question.
So you are getting your gmail on your black berry, currently?
do you have access to the landline your e-mail is connected to?
That would be the only way to get it back. Google has very good security and this is part of it.
Once you can answer the call from the google reset you will be able to enter the code and reset your password. Until then you are at an impasse.
Do you have someone who can answer the phone for you at your house to get the code?
It is immediate after you get call during the forgot my password ***** on google. It will call the number on file which you said is a land line. It this does not work try this site, there are several ways to recover gmail passwords. http://gmailaccountrecovery.blogspot.com