ZETRON 2000 Series Specifications download pdf (Page 64)

Managing the Subscriber Database with ZbaseW

64 025-9034AA

Priority

(1, 2, 3, 4, N, B)

Priority selection allows time-critical calls to precede other less important calls waiting in

the queue to be transmitted. A low priority of 1 will not go out for several seconds even if

no other pages are waiting. Priority 4 pages are given express service and go out first.

Two emergency-level priorities are available through the “Nextout” (N) and

“Breakthrough” (B) options. Nextout causes the page to go to the front of the queue so that

it will be serviced as soon as the resources are available. Breakthrough is an even higher

priority, in that it not only goes to the front of the queue, it interrupts any page that is

already in progress, and is always immediately transmitted. (If a breakthrough page is a

voice page, then the voice is transmitted live.)

Breakthrough paging, also known as Live Voice paging, is specified by a “B” in the

Priority field of a subscriber record. Briefly, when a Breakthrough page is called, any page

(or paging batch) currently in progress on the air is dumped (cut off), the Breakthrough

page is done, then the page or batch that was dumped (if any) is put out again.

There are several considerations when using this option.

First, Breakthrough (and Next Out) paging will reduce your channel efficiency. If your

system is very busy (transmitter is keyed up most of the time), be conservative in your use

of these features, since they will take extra airtime.

Also, the Breakthrough option really means two actions are done:

1. Breakthrough - any pages currently being put out are dumped (cut off) but left in

the queue to be put out again when breakthrough action is completed.

2. Live Voice - once broken through and the pager alert(s) done, voice will be live on

the air, directly connecting the incoming audio from the trunk card to the audio

going out over the air.

To do Live paging, the following must be observed:

1. Only applies to Voice, not data, therefore Multiport card cannot do it.

2. No multiple destinations (only the 1st channel/zone spec filled in).

3. No repeats (repeats field on 1st channel/zone spec is blank or 0).

4. Paging mode only (no Insurance or Notify).

5. If a Group page (status G record), group must be small enough for the single-voice

play feature to work. Otherwise, only the first batch of pagers in the group will get

the live voice, any subsequent pagers in the group will fail (because there’s no

voice to play - error messages will appear in the log).

If Breakthrough is specified for a page, and any of the above Live paging specs are not

true, then it does this: The entire page is taken in from the phone just like an ordinary

page, then any page or batch currently on the air is dumped, then the Breakthrough page

goes out, then normal paging is resumed with the page or batch that was dumped.

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ZETRON 2000 Series Specifications Page 64