Have you tried different ports on the dli card?Not sure what you mean by the sli phones work ok? or do you have an sli card and it works fine.Is the problem on internal and external calls?Never seen it before but if you have more than 1 dli card do they all have this problem or just 1 card?
If it's not a big deal try defaulting the system and starting over see if a default cures it.

[This message has been edited by pvj (edited May 20, 2004).]