We can't comment on your errors due to the fact that you didn't supply the errors. Mike On May 14, 2010, at 3:04 AM, daqiang wang wrote: > hello: > I test OpenVox Card : for 4X4E1 Pri Card. > but when the calls> 60 . the channel answer slowly ,and some errs occured. > do you test the PRI card. ? and why so many errors ?