I need to convert a SIP trunk to 8 physical ISDN BRI, U interface.  Why:  The BRI equipment is too expensive to replace. Here's what I have:  Cisco 2610XM 10/100 with four VIC-2BRI-NT/TE (two in the main chassis and two in an NM-HD-2V  module) Anyone's Cisco-Fu strong enough to tackle configuring this? Martin