Teltone m-392 Guida Utente

Pagina di 52
Programmable Transfer Codes
This group of features improves security by allowing you to specify the DTMF tones which
route calls at the LSS, ensuring that calls are transferred to the appropriate port. Transfer
codes can be programmed so that the LSS can be used with and without a Polling
Controller in the same application.
Privacy Timeout
When someone takes the telephone off-hook to block incoming telephone calls or when a
device (modem or fax machine) is stuck in an off-hook position, the resulting busy line
prevents incoming calls to all ports. With Privacy Timeout, the LSS will be able to answer
calls and route them to any port, except for the line that is off-hook.
Basic Operation
The LSS answers incoming calls, determines the destination, and routes the call. If a
transfer code is received from a Polling Controller, the LSS routes the call to the
requested device, such as a polled modem. If no transfer code is received, the call is
routed to the default port (Port 1 is the factory default), usually connected to a telephone
(or a telephone and extensions).
When the LSS is used without a Polling Controller, the caller must be sure the LSS
answers the call before sending transfer codes to route the call to a specific port.
An advantage of using the Polling Controller is that the user does not need to generate
the pause time in the dial string between the telephone number and routing code to
accommodate variable switching delays in the network. In addition, the Polling Controller
will hang-up polling calls at the originating end when a priority outbound call is initiated at
the LSS. This latter point means that a caller at the LSS will get faster processing of the
priority call.
Line Sharing Switch
Page 4