I've got a TCR with 2 HyperDSPs working fine connected to PRIs. I've had to add another DSP because of expansion. I've got the card in the TCR and have copied the configuration from one DSP to the new DSP, ie trunk settings, swith type, etc. My users are getting unusual high tones at handshake and then the connection drops. I've talked with several 3COM technicians who have said the card is setup correctly. I've had the PRI checked by the telco technician twice and they say that the PRI is good. The 3COM technician had me look at the errors on the span and they were incredibly high for the new card. The telco say that when he hookd his "t-bird" to it (whatever that is) he doesn't get any errors. Anybody have any ideas on how to troubleshoot this? There is a lot of finger-pointing going on. Thanks, Steve Cobb Geeksnet - To unsubscribe to usr-tc, send an email to "majordomo@xmission.com" with "unsubscribe usr-tc" in the body of the message. For information on digests or retrieving files and old messages send "help" to the same address. Do not use quotes in your message.