I'm using VMobile Talk on a couple of different devices. http://talk.vmobile.eu/ The BB version (Yeah, I know but it's the corporate standard) works great. Configuration was a snap.
I'm using VMobile Talk on a couple of different devices. http://talk.vmobile.eu/ The BB version (Yeah, I know but it's the corporate standard) works great. Configuration was a snap.
I've had success with these:
For iOS - Media5fone; 3CX.
For Android - CsipSimple
I know lots of people who like Acrobits.
Bookmarks