Nortel: 
interface  bundle MFR1
    link  t1 1
    link  t1 2
    link  t1 3
    encapsulation frelay
    fr
      intf_type dte
      frame_size 4470
      mfr  fragment_size 4000
      mfr  seg_threshold 3999
      lmi ansi
        exit lmi
      pvc 500
        shaping cir 4608000 bcmax 4608000 bcmin 65536
        no policing
        ip  address X.X.X.X 255.255.255.252
        icmp
          exit icmp
        red
          tx_min_thresh 14
          tx_max_thresh 42
          exit red
        exit pvc
      exit fr
    icmp
      exit icmp
    qos
      exit qos
    exit bundle
aaa

Cisco:

interface MFR1
 no ip address
 encapsulation frame-relay IETF
 frame-relay multilink bid verizon
 frame-relay lmi-type ansi
!
interface MFR1.1 point-to-point
 ip address X.X.X.X 255.255.255.252
 traffic-shape rate 4608000 4608000 65536 1000
 frame-relay interface-dlci 500 IETF


interface Serial0/1
 no ip address
 encapsulation frame-relay MFR1
 no arp frame-relay
 frame-relay multilink lid verizon2