Automated mass notification system for operational, emergency and informational messages to telephone subscribers of 3G/4G/LTE, VoIP, PSTN networks
Features
- Automatic call generator (up to 800 SIP channels)
- SIP protocol support
- up to 2 USB GSM Modem devices
- up to 4 VoIP GSM gateway devices
- up to 4 SIP phone devices
- up to 4 SIP Trunk interfaces
- up to 16 E1 interfaces (SS7, PRI DSS1 and R2 MFC)
- up to 35,000 calls per hour
- Convenient setup and management interface
- Database support (subscriber lists, logging, statistical information and reports)
Overview
The Telephone Subscriber Notification System is a hardware and software complex designed for prompt, emergency or informational alerting of telephone subscribers of the public telephone network with the issuance of an audio message via E1, IP, GSM/LTE interfaces.
Figure 1: Network diagram of the operating principle of the warning system
The software is responsible for creating and storing subscriber lists, configuring the interface for connecting to the telecommunications network, generating telephone calls according to pre-set requirements, logging the software operation and creating reports based on the notification results.
The hardware part of the system is a computer on which the software is installed and, if necessary, a device for accessing the PSTN(USB GSM modem, VoIP GSM gateway, Digital Telephone Switch E1).
Scope of application
- Operational and emergency notification of subscribers on telephone lines (employees of law enforcement agencies and other state structures, railway transport, emergency services) following an alarm signal, in connection with the occurrence of an emergency situation (fire, flood, environmental accident, etc.) or production necessity (emergency collection, notification of an accident or fire at the enterprise).
- Informing customers of credit institutions, telecommunications operators, utility services and other institutions related to the need for a telephone call of a large number of subscribers (for example, information messages, debt messages, advertising messages, etc.).
Functional capabilities
The functionally automated notification system is a software and hardware complex with support for the SIP protocol (IP telephony protocol). The software part of SOTA provides support for 4 SIP Trunk interfaces and a connection for connecting to a public telephone network.
SOTA software provides simultaneous connection on 200 SIP lines for 1 SIP Trunk.
SOTA software functionally allows:
- Automatically generate phone calls to a public telecommunications network using the SIP protocol
- Create a general list of telephone subscribers
- Create notification lists by groups, departments, activity directions on others
3 phone numbers (main and additional) for one subscriber - Support phone number priorities for notification sequence (from 0 to 9)
- Support the desired number of autodial attempts
- Forced stop autodialing
- Display statistical information and save reports of alert results
SOTA is connected to the IP network via the SIP protocol and can provide simultaneous notification of telephone subscribers over 800 connecting telephone lines.
Automatic telephone call generator
The main task of the SOTA hardware and software complex is the mass generation of telephone calls to the public network PSTN. Integration with PSTN occurs through the support of the SIP IP telephony protocol with support for up to 4 SIP Trunks or using the Digital E1 Stream Switch from TERRATEL via the E1 interface.
The functionality of the automatic telephone call generator allows for simultaneous telephone calls on 200 SIP lines for 1 SIP Trunk.
The Digital Telephone Switch E1 supports up to 16 E1 interfaces and the main telecommunication signaling systems of the public network SS7, ISDN PRI (DSS1, QSIG, Q.931), R2 MFC, SIP.
Emergency messages and emergency warnings
In the event of an emergency, the speed of notification is important. SOTA, as an alert and warning system, helps ensure a quick response to an emergency event by sending automatic emergency alerts or messages. Thanks to the software, SOTA automatically generates phone calls through the public telephone line to the appropriate categories of phone subscribers (by groups, departments, services, communities, etc.).
SOTA helps to quickly prepare the employees of the relevant services (or the population) for emergency situations, to warn them if something happens, to inform them of the news about the developing situation and its consequences.
Launching an automated system of emergency messages and information alerts based on pre-created lists of subscribers takes just a few seconds.
Information messages
SOTA provides automated information to clients of credit institutions, telecommunications operators, utility services and other institutions related to the need to notify a large number of subscribers by telephone (for example, about arrears for payment of services).
In addition to playing a voice phrase from a previously created wav file, the system allows you to generate audio playback of numerical formats (date, time, number).
SMS notifications. Automatic mass sending of SMS messages
The product supports the functionality of organizing mass SMS notifications via the interface of a GSM VoIP Gateway device or a USB GSM modem device.
Sending SMS notifications is an effective way to inform employees or clients of a company.
Work algorithm
At the command of the operator or automatically, at a certain time of the day, subscribers of a pre-configured list are automatically notified by telephone. If the subscriber is “busy” or “no answer”, a scenario of making several connection attempts with the desired delay between calls is possible.
Control of autodialing tasks is carried out during the notification process and is stored in reports indicating the start time of autodialing, the name of the message and its result.
In the course of autodial, the mode of confirmation of listening to the message by the subscriber can be additionally used. The message must be listened to by the subscriber to the end. In case of “non-answer” of the subscriber or incomplete listening, the auto-dial to the subscriber is repeated taking into account the configured number of attempts.
Using the software settings, the system user can quickly change the scenarios of the system and sound fragments from which the voice message is formed.
Figure 2: General view of the user authentication form
Depending on the access rights settings, the user is given the opportunity to work in the “Administrator” or “Operator” mode during authorization in the SOTA program.
The “Administrator” mode is full or selective (pre-configured) functionality of the program.
The “Operator” mode is a limited functionality with a certain set of actions that does not change, the minimum required to start the auto-dial system.
User Interface Description
Caller Notification System software has a standard multi-window interface with a main form and child windows that open on demand.
Figure 3: The main form of the user interface of the SOTA software
The main form of the software (Figure 3) contains:
- A toolbar (icons) duplicating the commands of the main menu (2)
- Drop-down list of pre-created autodialing groups (3)
- List of subscribers of the autodialing group (4)
- Tabs for configuring access interfaces to PSTN (GSM, SIP, E1) (5)
- Output field of program operation in notification mode (7)
- The button for choosing to save the output field in a text file (8)
- Statistical data of notification results (9)
The software is configured through the “Settings” form.
The form contains tabs: “General“, “SIP trunk“, “E1 interface” and “GSM modem“.
The “General” tab is responsible for setting general parameters (“Interface language”, “Call parameters”, “Users”, “Database”, “License”).
The “SIP trunk“, “E1 interface” and “GSM modem” tabs are responsible for configuring access to the telecommunications network.
Productivity of the notification system
The main parameters affecting the total time of alerting telephone subscribers are the number of available connecting telephone lines, the number of subscribers to be alerted, the desired number of autodial attempts, as well as the size of the voice phrase.
For example, the approximate time of autodial to 3000 subscribers on 30 telephone connecting lines with a phrase of 10 seconds is 43 minutes. Autodial took place taking into account the commands “busy”, “subscriber did not answer”, and the number of answers was 88%.
Options for connecting to the public switched telecommunications network (PSTN)
The SOTA telephone subscriber notification system functionally supports the following options for connecting to the PSTN network:
- up to 2 USB GSM gateway devices (AT command support)
- up to 4 VOIP GSM/LTE gateway devices (integration via SIP protocol)
- up to 4 devices of the SIP phone type (integration via the SIP protocol)
- up to 4 SIP TRUNK (up to 200 voice lines in one SIP TRUNK)
- up to 16 E1 interfaces (support of SS7, PRI and R2 MFC signaling protocols)
SIP phone line (SIP phone, IP phone)
A SIP phone line is a connection via the Internet to an IP phone, computer, or smartphone using a city or national number.
Provides an opportunity to use telephone communication on various devices – a regular or IP telephone, on a computer, tablet or smartphone.
* Connection to PSTN is provided by SOTA software through SIP protocol support.
SIP TRUNK
SIP TRUNK is a connection via the Internet to one IP address of several SIP telephone lines.
SIP trunk allows you to use any number of voice lines and city numbers.
* Connection to PSTN is provided by SOTA software through SIP protocol support.
GSM/ LTE VoIP gateway
Goip 4 is a gateway for 4 SIM cards, 4 GSM channels and 4 SIP lines. Supports SIP protocol. Compatible with all major IP PBXs: Asterisk, Mera, 3CX, etc. It is used to build a modern corporate telephone network.
Figure 4: GSM/LTE VoIP gateway
The GSM VoIP gateway is manufactured in GoIP4, GoIP8, GoIP12 configurations, which support different numbers of GSM and SIP lines, designed to work at frequencies of 850/900/1800/1900 MHz according to the GSM-IP and IP-GSM scheme.
* Connection to SOTA software is performed via the SIP protocol.
E1 interface (ISDN PRI, SS7)
The SOTA notification system functionally supports the possibility of connecting up to 16 E1 interfaces that support ISDN PRI, R2 MFC or SS7 telecommunication signaling.
The connection of the SOTA notification system to the public telecommunication network is made using the TDM gateway produced by the company TERRATEL.
The TDM gateway for connecting to the PSTN supports from 1E1 interfaces (simultaneous use of up to 30 voice lines) to 16E1 interfaces (up to 480 voice lines) and PRI or SS7 signaling.
1E1 interface (PRI, R2 MFC) – SFP VoIP E1 converter
The SFP VoIP E1 converter from TERRATEL supports ISDN PRI (DSS1, QSIG, Q.931), R2 MFC telecommunication signaling and can be used as a gateway between the Caller Alert System software and PSTN.
Figure 5: SFP VoIP E1 converter
The SFP VoIP E1 converter provides:
- Support for 1 E1 interface (PCM)
- up to 30 simultaneous phone calls
- Visual monitoring of the passage of system information in signal channels
* Connection to SOTA software is performed via the SIP protocol.
Up to 16E1 interfaces (SS7, PRI, R2 MFC, SIP) – E1 digital switch
The Digital Telephone Switch E1 from TERRATEL supports SKS-7, ISDN PRI (DSS1, QSIG, Q.931), R2 MFC, SIP telecommunication signaling and can be used as a gateway between the Caller Alert System software and PSTN.
Figure 6: Digital telephone switch E1
Digital Telephone Switch E1 provides:
- Support for up to 16 E1 interfaces
- up to 480 simultaneous phone calls
- Visual monitoring of the passage of system information in signal channels
* Connection to the SOTA software is performed through a specialized protocol of the device.
