Hello Guys,

               I have a lab setup with 2 2621XM routers with VWIC-1MFT-T1 1-Port Multiflex Voice Cards in them with a crossover cable between the devices. When I go under the controller interface below to use the PRI_GROUP or DSO-GROUP commands they are not available. I only see why what is listed below. Why is that?

      VoiceGateway(config)#controller t1 0/1
VoiceGateway(config-controller)#?
Controller configuration commands:
  cablelength    Specify the cable length for a DS1 link
  channel-group  Specify the timeslots to channel-group mapping for an
                 interface
  clock          Specify the clock source for a DS1 link
  crc-threshold  Specify how many CRC errors per second to be treated as
                 severely errored second (SES)
  default        Set a command to its defaults
  description    Controller specific description
  detect         Enable detection of loopback request
  exit           Exit from controller configuration mode
  fdl            Specify the FDL standard for a DS1 data link
  framing        Specify the type of Framing on a DS1 link
  guard-timer    Guard timer (0-20) for xcsp calls - timer duration and
                 accept/reject on expiry
  help           Description of the interactive help system
  linecode       Specify the line encoding method for a DS1 link
  loopback       Put the entire T1 line into loopback
  mode           Configure the controller mode
  no             Negate a command or set its defaults
  shutdown       Shut down a DS1 link (send Blue Alarm)