Administering H.323 Trunk Link Recovery

Last Updated : Apr 25, 2014 |
Use this procedure to administer H.323 trunk link recovery.
  1. At the SAT interface, type list signaling-group and press Enterto display a list of the administered signaling groups. Find the H.323 signaling group(s) in the list.
  2. Type change signaling-group n, where n is an administered H.323 signaling group.
    ADDITIONAL INFORMATION:
    display signaling-group 2                                              Page   1 of   6
                                    SIGNALING GROUP
     Group Number: 2              Group Type: h.323
     SBS? n                    Remote Office? n        Max number of NCA TSC: 10
     Q-SIP? n                                           Max number of CA TSC: 0
     IP Video? n                                     Trunk Group for NCA TSC: 2
        Trunk Group for Channel Selection: 2       X-Mobility/Wireless Type: NONE
       TSC Supplementary Service Protocol: a          Network Call Transfer? n
      Location for Routing Incoming Calls:                  T303 Timer(sec): 10
    H.245 DTMF Signal Tone Duration(msec):
         Near-end Node Name: procr                   Far-end Node Name: S8300
     Near-end Listen Port: 1720                Far-end Listen Port: 1720
                                            Far-end Network Region: 1
             LRQ Required? n                Calls Share IP Signaling Connection? y
             RRQ Required? n
         Media Encryption? n                     Bypass If IP Threshold Exceeded? n
                                                          H.235 Annex H Required? n
             DTMF over IP: out-of-band            Direct IP-IP Audio Connections? y
      Link Loss Delay Timer(sec): 90                        IP Audio Hairpinning? y
             Enable Layer 3 Test? y                  Interworking Message: PROGress
    H.323 Station Outgoing Direct Media? n   DCP/Analog Bearer Capability: 3.1kHz
  3. Type the number of seconds to retain the call state information in the Link Loss Delay Timer field (1-180 seconds, default is 90).
  4. If you want Communication Manager to run the Layer 3 test that verifies that all connections known at the near-end are recognized at the far-end, type y in the Enable Layer 3 Test field.
    ADDITIONAL INFORMATION:
    Note:
    The default value is y (test enabled), however some systems, possibly older Communication Manager releases, respond incorrectly to this test. Set the value to n in these cases. If this field is administered as y (test enabled) and the Far-end Node Name does not have an administered IP address, then you cannot submit the form.
    Note:
    The Far-end Node Name must have an administered IP address, otherwise the Layer 3 test aborts.
  5. Press Enter to save the changes.