Hello everyone. Kai Militzer wrote: >> 2) replace entire server with something new that is known to work well, >> does not have shared interrupt issues like many Dells were reported to >> have and has PCI 2.2 slots > That would be an idea, but it involes a lot of work and downtime. This > will only be my last resort. I replaced the Hardware. No help. That's what I asked on #asterisk in IRC. maybe one of you can explain this: OK people, I need your thouhts. I have a TE205P card for use with chan_ss7 in a Server with a P4 3GHz. Over the last few weeks the MTP2 CRC-Errors (MTP2 is one layer above the E1-Layer) with this increased because the zaptel input and output buffers were full or empty or both. This resulted in a complete disfunction of chan_ss7 (no ss7 links could be started). I then tested the card with a cross-cable and zaptel -> No problem. Cross cable and chan_ss7 -> doesn't work. Another server with a P4 1.8GHz-> same problem. And now the miracle. Another server with a AMD XP 2000 -> it work's without errors with a cross cable ... Any thoughts on that? The thing that bothers me is, that it worked once and the CRC-errors increased over time. Otherwise I would have blamed the P4 Best regards, Kai -- Kai Militzer WESTEND GmbH | Internet-Business-Provider Technik CISCO Systems Partner - Authorized Reseller L?tticher Stra?e 10 Tel 0241/701333-14 km@xxxxxxxxxxx D-52064 Aachen Fax 0241/911879