[SFLphone] SIP port and multiple accounts

[Albixman]

Hello!

I'm using SFLphone 0.9.6 on Ubuntu Jaunty amd64.

How can I select a different port for SIP signals and for RTP streaming?
It seems that the field in the settings menu don't work properly.
Sometimes when I shut down the program/computer that setting comes
back to 5060. I need this option to avoid conflicts inside my network
(I have 2 SFLphones into 2 different computer registered to a
different internal of the same PBX).
It would be nicer to select a different SIP port for every account.

If I setup multiple accounts, how can I select the one to be used for a call?

Thank you very much.