[SFLphone] SIP port and multiple accounts

[Albixman]

2009/9/24 Albixman <albixman at gmail.com>:
> 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.

I discovered using wireshark that the destination port is correct
(different from 5060).
The problem now is: how can I change the source port (my port)?

Thank for your help.