(usr-tc) Binding 2 ISDN channels

Anyone know how to bind two 64k ISDN channels to one 128k connection? Some of the "virtual ISP's" will only offer 64k connections in my area and I need to be able to offer 128k to customers. I'm using RadiusNT to authenticate and can offer customers two separate accounts with different userids but I need to bind them to one. Thanks for the help. Steve Cobb - 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.