'Summary period' IAD Statistics


Parameter

Type of statistic

Description
Number of terminations linked to a call Gauge Number of terminations currently linked to a call on this IAD. This number includes terminations linked to an inactive call if the second termination has not yet been added to the call.
Number of terminations reserved for use Gauge Number of terminations currently reserved for use on this port. This number includes terminations currently in a call.
Count of failure notifications for terminations Counter Number of failure notifications for terminations on this IAD. Note that if the whole IAD fails, this count is not incremented.
Calls in progress (all types) Gauge Number of calls currently in progress on the IAD. This count includes both ADPCM (G.726) and PCM (G.711) calls, and includes any subscriber for which a tone (such as the reorder tone) is being played, regardless of whether the subscriber is actually in a call.
Calls in progress (PCM only) Gauge Number of PCM (G.711) calls currently in progress on the IAD. This count includes any PCM subscriber for which a tone (such as the reorder tone) is being played, regardless of whether the subscriber is actually in a call.
Count of failed attempts to allocate bandwidth Counter Number of failed attempts to allocate new bandwidth to a termination because of insufficient IAD PVC bandwidth. This type of failure typically occurs
  • during outbound call setup when a subscriber goes off hook
  • during inbound call setup before a ring is applied
  • when adding parties to multi party calls.
This failure is fatal to these operations, and is observable to subscribers.
Count of failures to change media format on existing terminations Counter Number of failed attempts to change the media format in use by an existing termination because of insufficient IAD PVC bandwidth. This type of failure occurs on active calls, and can result in failure of the call.