Yes, let us know.
I have several BCM's using literally hundreds of M series phones (Norstar changed out to BCM, didn't want to buy new phones). I have not run into any issues. I actually was complained into changing a T7316 out to a good ole' M7310 by a cantankerous branch manager who was peeved the main office made him switch out his 20 year old Merlin system, that he loved dearly. He was disgusted with the "thin/poor sound quality" of the new T series phone. We didn't really know what to say, so we gave him a M7310, and told him that he might find the sound quality more to his liking. He proclaimed the M series phone "better". It was that or the fact that he liked making me ask how high when he said jump. He did quit whining.
