I have a community that is within our local calling scope that has always required the ISDN connections be set for 56K on the client equipment. If we set the client for 64K it would connect but no data would pass on the line (both ends of the connection think there is a valid connection, this really confuses the telco). In the last month or so I have begun having problems where the circuits will not pass data for various length periods of time, then will begin working. The routers (multiple sites) do not drop and redial the calls, they are online the whole time (I have watched both the leds and the system monitors at our end and the customer end). The telco is convinced that if there is really a connection problem the ISDN connection would immediately drop, but that is not my experience in this case. Any ideas? Mark Thornton San Marcos Internet, Inc. 512-393-5300 - 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.