I responded to a LinkedIn message from a recruiter contracted to AT&T Consulting. He knew a bunch of people I have worked with in the past, making for an easy connection. AT&T Consulting is the former acquitision Callisma. Callisma in itself was a bunch of people from International Network Services. AT&T Consulting is trying to grow their Microsoft Lync practice, and are being very aggressive in their recruiting efforts. It appears they are looking for just consultants at this time, as my management experience wasn't desired. They were lowballing the salary, so if you have the Lync talent, then make sure you are compensated for it. The organization is exceptionally spread out. You will likely not meet people face to face until late in the interview process. You should also expect the work environment to be the same.