OPERATION |
|
2.The radio sends an interconnect call request on the Control Channel.
3.The Control Channel GETC receives the request for an interconnect call, and sends the request to the Site Controller.
4.The Site Controller receives the request for an interconnect call, and checks to see if it is permitted to add another interconnect call. (There may be a limit on the number of telephone interconnect calls allowed at any one time.)
If the Site Controller is not permitted to add another interconnect call, it directs the Control Channel GETC to send a busy signal to the calling radio. This ends the sequence here.
5.If the Site Controller is permitted to add another interconnect call, it checks to see if the calling LID has a dedicated line. (See Dedicated Line field in System Manager screen 11, panel 2.)
If the calling LID has no dedicated line, or if the dedicated line is not currently available, the Site Controller will search for an available line using the Rotary Number for the calling LID (see Rotary Number field in System Manager screen 11, panel 2.), and the Rotary Definition for that Rotary Number (see Rotary Definitions in System Manager screen 13).
If no line is available, the Site Controller directs the Control Channel GETC to send a busy signal to the calling radio. This ends the sequence here.
6.If the dedicated line is available, or if an available line is found through the Rotary Number and Rotary Definition, the Site Controller allocates that line for the interconnect call and checks to see if a Working Channel with a GTI is available.
If a working channel with a GTI is not available, the Site Controller will queue the call request and send a queued tone to the radio. Continue to the next step when the call comes out of the queue.
7.If a working channel with a
INTERCONNECT DIGITS
8.The calling radio receives the Working Channel assignment, tunes to the assigned Working Channel, and sends the
9.The assigned Working Channel GETC receives the interconnect digits (and terminator digit), and sends them to the Site Controller.
10.As the Site Controller receives the digits, it counts and stores each interconnect digit, and looks for the terminator digit. As soon as it counts 4 interconnect digits received or sees the terminator digit, it performs the toll call restrictions test for that radio ID, using
If the received interconnect digits fail the toll call restrictions test, the Site Controller directs the assigned working channel GETC to terminate the call and de- allocate the telephone line. This ends the sequence here.
If the received interconnect digits pass the toll call restrictions test and the Site Controller has received the terminator digit, skip step 12.
11.If the received interconnect digits pass the toll call restrictions test, but the Site Controller has not received the terminator digit, the Site Controller will continue to receive, count, and store each interconnect digit until it either sees the terminator digit, the received interconnect digits exceed the maximum storage capacity of 32, or the allowed hang time expires.
If the Site Controller receives too many interconnect digits or does not receive the terminator digit within the allowed hang time, it directs the assigned working channel GETC to terminate the call and
12.The Site Controller directs the assigned Working Channel GTI to insert itself into the audio loop of the assigned Working Channel in preparation for a telephone interconnect call.
RE-DIALED DIGITS
13.The Site Controller then directs the GTI for the allotted line to take the line
41