(usr-tc) Remote POP backhaul via ISDN?

I seem to remember that it should be possible to create a MPIP bundle between two TCHubs for the purpose of creating a temporary backhaul link. Is this true and has anyone ever done it? 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.