I tried calling a number by manually dialing the numbers ( a rare thing now adays) anyway I got a shock when i heard the automated message saying "calling is not part of your plan..." hung up and dialed the number again this time no issues.
I compared the numbers I dialed and realised that I left out a digit the first time I called.
So to conclude PM should change the message to the typical "the number you have dialed can not be completed a dialed".
I know its not a high priority and other things are more important, but thought it shoud be brought up anyway.