Hi Sakurai
Sakurai, I suggest you to use the 3CXPhone from the link above.
About the different server port issue: I suppose in your previous version you specified the port in the server address field, such as "10.0.0.1:22222". In this case, in version 11, either remove ":22222" and specify 22222 in the dedicated Server Port field, either edit Server Port field and leave it blank. The issue you have right now is due to the fact that the port is specified in two places, generating an URI as "10.0.0.1:22222:5060" which, obviously, is invalid so phone cannot connect. We will fix this in the next release.
Regards
vali