In reviewing this threat I see that I must have been mistaken about installing sflphone from gslapt. Please accept my apologies. I guess I was confused. My normal machine, this samsung (specs below) running 7.0 32 is the one I am so far unsuccessfully trying to get yate to run on once more. My other machine, the lenovo, is loaded with the latest 7.1 b2 and it is the one that has sflphone on it. I did install yate from the repositories.
So now the problem. Best I can tell sflphone works fine on 7.1. But it is not yet a stable release. I don't want to move all my files over as I would be moving them too often, as new pre-betas come out. So I continue with linphone which works but not all that well (yate spoiled me). My daughter tells me I should try google hangouts, so I am thinking of that.
Anyway, THANKS for your help with sflphone.