Nimbuzz for Android on Froyo 2.2, issues and solutions

I am currently using Nimbuzz as the daily IM and VoIP app on my Motorola Milestone with Android 2.2 Froyo. Here are solutions for issues I have with Nimbuzz on my Motorola Milestone with Android 2.2 Froyo.

1. When I use Nimbuzz to make VoIP calls to friends, sometimes counterparts cannot hear my voice. This problem can be solved by exiting and restating Nimbuzz;
2. When I enable speaker during VoIP calls, the voice is not loud enough. Solution for this issue is disable the speaker and enable it again.
3. Sometimes the status of my online friend is displayed as offline. It seems to be due to the delay of refreshing the status. Restarting can solve this problem.

Issues listed above may be individual cases for my my Motorola Milestone with Android 2.2 Froyo, thus I didn't put them in the general review of Nimbuzz for Android.