This is what I'm trying to set up: Incoming: PRI-->Cisco VG200-->Cisco Call Manager 3.34 -->(over h.323)--> Asterisk Box Outgoing: Asterisk Box -->(over h.323)--> Cisco Call Manager 3.34 --> Cisco VG200 --> PRI The incoming part seems to work great. The outgoing part does not work quite so well. The pages that go through end up being of random lengths. From what I've been reading the most likely cause is frame slips and timing issues. Given the set up how would I go about correcting the timing. I haven't been able to find much on how to fix it. I realize that faxing over IP can be problematic, but why would incoming work, but not outgoing?