Configuring T-CCS

T-CCS uses a dedicated channel for signaling. There are three modes for configuring T-CCS: cross-connect, clear-channel CODEC, and frame forwarding.

T-CCS is supported with VoATM, VoFR, and VoIP. An example using T-CCS is illustrated in Figure 1, with two sites connected via IP and their respective telephone extensions per PBX.

Figure 1: T-CCS Example

Based on the example in Figure1, the following steps are needed to complete a basic T-CCS configuration to the router at the Atlanta location. The Orlando configuration would be very similar and have mirrored dial-peer statements:

  1. Configure the T-1 controller:

    router(config)# controller T-1 1/0
  2. Set the T-1 channels that are used and the signaling associated with each channel:

    router(config-controller)# ds0-group 0 timeslots 1-24 type ext-sig
  3. Enable the T-1 controller:

    router(config-controller)# no shutdown
  4. Exit from Controller Configuration mode:

    router(config-controller)# exit
  5. Set up the local dial peer for the connection to the PBX:

    router(config)# dial-peer voice 4000 pots
  6. Set up the local destination pattern for the connection to the PBX:

    router(config-dialpeer)# destination-pattern 4…
  7. Associate the T-1 ds0-group to the dial peer:

    router(config-dialpeer)# port 1/0:0
  8. Exit dial-peer configuration mode:

    router(config-dialpeer)# exit
  9. Set up the dial peer for the connection to the remote PBX:

    router(config)# dial-peer voice 5000 voip
  10. Set the CODEC complexity to clear channel:

    router(config-dialpeer)# CODEC clear-channel
  11. Set up the destination-pattern for the connection the remote PBX:

    router(config-dialpeer)# destination-pattern 5…
  12. Configure the IP session target for the dial peer pointing to the remote router:

    router(config-dialpeer)# session target ipv4:

No comments:

Telecom Made Simple

Related Posts with Thumbnails