Thanks all for the help and pointers everyone. I've managed to build SentryPeer ( https://github.com/SentryPeer/SentryPeer/tree/debian-packaging/debian). I'm just going through debuild now to clean up lintian issues and pbuilder runs for missing depends.
Suprisingly enjoyable and "dh" in the rules file does a ton of work for you! I've emailed the VoIP packaging group to see if I can help now that I know some more. I'd like to look after the libosip2 package too as SentryPeer requires it and it looks like it's not been updated in 6 years? https://salsa.debian.org/pkg-voip-team/libosip2/-/blob/master/ChangeLog Thanks again everyone. Gavin.
