Initially launched in Indonesia, the device will also be taken to other emerging markets.
The CEO said the firm may exit its handset business if it remained unprofitable.
BlackBerry is working closely with other carrier partners to provide users with alternatives.
The company said it would launch BlackBerry Enterprise Service 12, or BES12, to unify its existing platforms.
The deal sent shares in BlackBerry to surge after the closing bell.
BlackBerry Ltd has filed a lawsuit against a company co-founded by 'American Idol' host Ryan Seacrest.