Have you checked out Berbee Informacast? I am not sure on their pricing anymore, but I have been very happy with it.

Thank you!

if those are slip second errors, I have seen the very same thing, and it has to do with clocking. If you are passing between a PRI and a T1, you will need to see that only one is providing the clocking, and the other is accepting that clocking from ...

I had this same problem, I was using 7970 ip phones with the vt-advantage, and I needed to put in a new updated phone load. I do not remember which phone load it was, but it was in the 8.0 series phones loads. Give that a try.

There is definately a bug here, because I am having the same exact issue. I have looked through TAC case's, and have not been able to find anything.