User's Manual

subscriber. During tests with Internet Explorer, you must disable the proxy server for local
addresses or specify the IP address of the publisher in the bypass list.
Keeping track of states
Both publisher and subscriber keep track of the state of the other party. This leads to a so-
called "image" of Boolean settings of publisher and subscriber.
Subscriber
On the subscriber level, there is a state represented by P:0 and P:1, indicating whether the
publisher can be reached. P:1 denotes the publisher is available, P:0 denotes the publisher is
unavailable.
Appropriate registry settings associate an environment to each image. Optionally an SQL script
can be defined to run during switching environments.
The registry definitions are shown in Figure 92: Registry definitions on page 87.
Figure 92: Registry definitions
In Figure 92: Registry definitions on page 87, an example is shown with one Publisher and two
Subscribers; Subscriber 0 has an image for handling P:0 and P:1. This example shows the
settings when the subscriber cannot connect to the publisher. The environment Site 1 –
Environment 10.110.50.140 (backup) is associated and SQL script Messenger_CFG_sql is
defined.
Publisher
On the publisher level, a similar registry image is used. However, as a Publisher is often in
contact with multiple subscribers, the available images grow exponentially, as the state of
publisher and every subscriber forms a number of combinations for each Boolean state.
Keeping track of states
DECT Messenger Installation and Commissioning — Book 2 March 2012 87