client wants to use ISDN for RAS connectivity. At remote site, BRI is planned. around 20 remote locations will be connected simultaneously to central office using single PRI at central office. Central office is already equipped with a 2851 router.
My query is, can I install a PRI NM in central office 2851, to facilitate multiple connections from remote locations (multiple BRI to a single PRI)? Is there anything additional to PRI NM required?
Actually it is known to me that CE1T1-PRI can be installed in this router, but my actual problem is , to facilitate multiple BRI remote connections to this NM. Can you pls suggest that it is possible to permit multiple BRI RAS sessions on this NM, without anything additional?