GNOME Bugzilla – Bug 438297
Look at the port number of the incoming RTP traffic
Last modified: 2020-06-06 16:28:42 UTC
References: http://mail.gnome.org/archives/ekiga-list/2007-May/msg00080.html In short, ekiga should try to work around the broken NATs when the NATed site guesses its source port (or maybe even address) incorrectly: the ekiga on a public IP should look at the port number and maybe even IP address of the incoming RTP stream, and display a warning message, when this is different from what the remote side announced in the SIP call setup. It may even start sending further RTP traffic to this IP address and port instead (changing the IP address may have security implications, though).
Ekiga is not under active development anymore: https://gitlab.gnome.org/Infrastructure/Infrastructure/-/issues/273 Ekiga saw its last release 7 years ago. The last code commits were 4 years ago. Closing this report as WONTFIX as part of Bugzilla Housekeeping to reflect reality. Please feel free to reopen this ticket (and transfer the project to GNOME Gitlab, as GNOME Bugzilla is deprecated) if anyone takes the responsibility for active Ekiga development again in the future.