User Manual

25 of 34 Talk-A-Lert III Manual Rev. 2/ 3/ 2014
Example: Dialing 555-1212*41* with a Consolidator Delay of 7 and Data Time Out
set to 30, the following sequence would happen:
1. Poller opens the modem port and sends the modem hang up string (1 second)
2. Poller sends the modem initialization string (1 second)
3. Poller sends the voice mode command string (1-2 seconds)
4. Poller dials the phone number (dial tone may take 1 second, 1 second to send the
phone number, wait 14 seconds and then send the *41* )
5. Poller waits for the emergency phone to send the text data back. At this point 20
seconds have passed, leaving 10 seconds or less for the data to be sent back. Any
extra delays such as dial tone and actual phone dialing can add up.
6. After data has been returned, the poller determines if it needs to send the # (Hang
Up Phone Delay)
7. Poller puts the modem into data mode
8. Poller sends the modem hang-up string
9. Poller waits Hang Up Phone Delay seconds then the next phone in the queue
 Result Length: Number of characters we expect the emergency phone to send. This
field is not currently in use. (D=16)
 Retry Count: Number of times to try to get the phone ID or redial if busy/ no
answer. If there is a mismatched ID, the poller will send the *9* sequence this many
times trying to get a correct ID. Each time it sends the sequence, the timer (Data
Time Out) is reset and waits for data again. It is possible to get a mismatched ID
and send the *9*, and have the emergency phone not send any data. If this happens
NO ANSWER will be recorded. (D=1)
 Minimum Result Length: Once this many characters return from the emergency
phone, the data is considered “received.” The bu ffer is read once more to check for
straggling characters and then the IDs are compared. (D=8)
D. Listener