Pitney Bowes EDGE 7.11, Reference Manual

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Architecture Server Architecture
Telephony Gateway Reference Manual 41
Figure 2-3. Shared Memory Update
For example, assume the telephony device specifies 50 campaigns.
The set of telephony servers start with 40 campaigns opened for the
morning shift. At the end of the shift, all 40 campaigns are closed, but
the set of telephony servers is not stopped. The afternoon shift tries
to open 20 campaigns, all of which are different from those used by
the morning shift. EDGE allows only 10 of these to be opened,
because there is only shared memory left for 10 campaigns. In this
case, you can use the tpserver command to stop then start the serv-
ers before the afternoon shift begins work. If the afternoon shift used
the same 20 campaigns as the morning shift, all would open, and
there would still be 10 more different campaigns available to be
opened.
Shared Memory
Guide Server
Database Server
Switch Server