Smartphone maker BlackBerry has resumed official roll out of its instant messaging application BBM for users of iPhone and devices based of Android operating system.

“We are about to officially resume our rollout of BBM for Android and iPhone customers around the globe. In the next few hours, people will start seeing BBM in Google Play, the App Store and in select Samsung App Stores — where it will be free to download,” Andrew Bocking, EVP, BBM, BlackBerry, said in a post on the company’s official blog. However, not everyone will be able to use it immediately.

Mr. Bocking said, “As you know, in just seven hours, about one million Android users were using the unreleased version of BBM for Android. What you don’t know is that more than one million people have found creative ways to 'side load' BBM on their iPhone.”

BlackBerry, however, said that those who signed up at BBM website would be able to use the app immediately.

“If you are among the millions that took the time to sign up at BBM.com, you can start using BBM immediately without waiting in line. If you didn’t sign up in advance, don’t worry — we are focused on moving millions of customers through the line as fast as possible,” Mr. Bocking said.

In September, BlackBerry had paused the global rollout of BBM on rival phones, blaming the delay on issues caused by an unreleased old version of the service.