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911 technical documentation

Emergency Notification Systems

Emergency Notification Systems This section of our technical library presents information and documentation relating to Emergency Notification Systems and Disaster Recovery Applications. If a severe snow storm hits your area, your community can be notified of school closings or event cancellations. Should an emergency arise in your community, our emergency broadcast phone service can deliver large volumes of phone messages quickly using thousands of digital and analog phone lines simultaneously. If a dangerous chemical spill occurs in your community, you can target specific areas to call. In the event of a blizzard, wild fire or devastating flood, your community can be notified quickly given specific instructions if an evacuation is required using our emergency broadcasting service.

DSC Autonomous Call Center Acknowledgement Client

AcsAPI Library Routines - Dialer and Line Setup

    int ACSQueryDialerLines(const char * _campaign);

    If _campaign is blank, this routine requests a list of all available lines.  If not, it returns the lines assigned to the campaign.  They are returned in “bursts” of up to 24 each, in the structure AcsApiDialerResponse, with an operation type of ACSAPI_OP_QUERY.  One last empty return of ACSAPI_OP_QUERYDONE indicates the end of the bursts.

    struct AcsApiDialerResponse{ // ACS_RT_DIALER

        char campaign[7];

        int  operation;

        int  lines[24]; // ACSAPI_OP_QUERY

        int  numLines;


    int ACSSetupDialer(const char * _campaign,

                       const char * _recordingsRootpath,

                       const int    _noanswerSeconds,

                       const int    _dialerConnectOn,

                       const int    _numLinesAllowed,

                       const int  * _linesAllowed);

    This routine sets up the dialer.  There are four connection options:

    ACSAPI_DC_VOICE       // dialer connect on positive voice

    ACSAPI_DC_ANSWMACHINE        // on answering machine

    ACSAPI_DC_BUSY        // on busy

    ACSAPI_DC_NOANSWER    // on noanwser

    This routine executes a minimum of two communications, so multiple returns may be received in an AcsApiDialerResponse structure (above), with the operation type ACSAPI_OP_ADD.

    There is a 1024 limit to the number of lines that can be set.  Due to communications standards, they will be sent in bursts of 24 maximum, resulting in even more responses.


ACS API Library Routines

Tornados - Emergency Dialer for Tornado Warnings

civil alert tornado warning If a tornado should threaten your community, our emergency warning service can contact your neighbors quickly. With our emergency notification phone service, you can broadcast warning messages to thousands of households in your community warning of catastrophic disasters including tornados and high wind storms.

Messages can be simultaneously delivered in just minutes using our network of phone systems and services. Pre-recorded warning messages can be played giving households information regarding the tornado and storm location and whether a community evacuation is planned or necessary. You can send a broadcast warning to specific neighborhoods or communities in the event of a tornado and provide priority delivery of these messages to those households that are in the immediate path of these storms.