One has to ask themselves how does mgt set up their priorities. Was it more important to to set up the home phone before gaining full texting capabilities on all their applications.
Was the calling card more important that the texting applications?.
IDK. All I do know is that calling cards and home phones are a dying breed where as texting is done daily and and by some hundreds of times a day.
Oh wait I forgot they have WEBRTC almost completed and thats why a texting app between non VOX apps is not a priority.