Suddenly found out that just a great missing just wonderful and very convenient Sip client for Android, it just works despite the fact that for 5 years is not updated. And you probably already noticed that I love programs written long ago and well. So this is the same program, it just works and performs its functions perfectly. CSipSimple it is still possible to find outside Google Play so I decided that it is better for me to keep everything fresh and accessible. I will not tell you how to configure it, if you are looking for it and so you know how to do it:).
Traditionally, the link to Yandex disk. Download CSipSimple and plugins.