We have two sites tied together. They're trying to place a call from the primary site (which is an S8500) to the secondary site (S8300) and we're getting an denail event. The line from the list trace reads: "Denial event 1220: ISDN recovery timer expiry D1=0x3d D2=0x66" Any suggestions on how to resolve this error?
Thank you for any insight you may have.
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