I installed palringo on BB 8900 Curve, registered, verfied my account, the works. As yet I was not able to connect to the service once. I another thread, https://www.palringo.com/en/gb/forum/support/blackberry/cant-connect-try-this-t1877, I am told to change my TCP/IP settings for the phone. All I can say now is, I came, I downloaded, I tried and will most certainly never recommend this software to anyone.