Message Automation & Protocol Simulation™ (MAPS) for ISDN
GL’s Message Automation & Protocol Simulation™ (MAPS) is a powerful Protocol Test platform-supporting a wide range protocols such as SS7
over TDM (T1/E1), ISDN over TDM, GSM-A interface & GSM-Abis interface over TDM, Megaco, SIP, and MGCP.
GL’s MAPS-ISDN is an advanced protocol simulator/tester for ISDN simulation over TDM (T1E1) and generates high volumes of ISDN traffic.
The tester can simulate ISDN signaling as defined by the ITU-T standards. Currently this test tool is used to perform testing using ISDN protocol
messages over T1/E1, and offers a complete solution for testing, troubleshooting, and maintenance of devices and networks implementing PRI ISDN.
It is useful to test ISDN products designed for either U or S/T interface, including network terminations, Type 1 terminating equipment, and
terminal adapters.
MAPS-ISDN also incorporates the flexibility to modify ISDN call parameters & message contents (arbitrary manipulation of messages, information
elements and message sequence on the different protocols). This flexibility ensures that the MAPS-ISDN communicates with the system under test.
It is even possible to emulate a complete ISDN connection (switch to subscriber) all in the same PC with a dual interface card or dual laptop analyzer.
Link status (Lap D) is also configured.
MAPS-ISDN supports powerful utilities like Message Editor and Script Editor which allow new scenarios to be created or existing scenarios to be
modified using ISDN messages and parameters.
GL also provides a GUI based ISDN protocol analyzer (optional application – xx100) for on-line capture and decode of the signaling in real-time both
during tests and as a stand-alone tracer for live systems.
Protocol Standards
This test tool can be also be used to perform protocol conformance testing as per the following specifications
- ISDN - ITU-T Recommendation Q.931
MAPS - ISDN Testing Features
- ISDN simulation over TDM (E1/T1)
- Multiple T1/E1 line interfaces supported
- Access to all ISDN Message Parameters such as Setup, Connect, Release messages, and more
- Switch and Subscriber Emulation
- Provides various release cause codes such as rejected, no user response, user busy, congested, and so on to troubleshoot the problems in ISDN
- Supported on Windows® 2000/XP/Vista operating systems
Automatic Simulation Behavior (generates and responds to calls/ messages):
- Call Generation Configuration: Allows independent outgoing communications. The Call Generation interpretation of establishing call is to invoke the
required scripts for call transfer.
- Editing utilities allow access to Mandatory Parameters and Information Elements using Message Templates, Import, and Export files
- Change parameters values using an utility Profile Editor
- Impairments can be applied to messages to simulate error conditions
- High volume traffic options – DTMF/MF generator/detector, single and Dual Tone, Tx and Rx of Voice files (scripted) and analyzing the
received voice files in VQT for Voice Quality Test
- Retransmission of messages with specific interval
- Provides protocol trace with full message decoding, custom trace, and graphical ladder diagrams of call flow with time stamp while
simulation is running
- Option to run the test for multiple iterations
- Quick configurations to create multiple entries
- Interactive GUI to view status, results, call information, total iterations to be done, and number of completed iterations
- Provides the associated captured events and error events during call simulation

- Call Reception Configuration: Allows configuring incoming communications to handle all possible signaling and call Control messages for
responding to the call requests.
- Automatic response to incoming messages - Processes the ISDN messages received based on the script specified in the script
configuration window
- Provide the result of the test with detail protocol decode and ladder diagram
Software Architecture
- Script based & protocol independent software architecture
- Quick-testing to complex testing
- Customization of call flow and messages
- Generate and respond to calls/ messages
- Monitor the call flow graphically (ladder diagrams)
Working Principle
The message templates form the backbone of MAPS application. The Message Editor is a powerful utility of MAPS application, which allows users to
create any number of message templates with user-selected protocol fields and default values for each protocol field.
The protocol fields in message templates comprises of Mandatory Parameters and Information Elements, and these can be accessed by scripts as
variables using import/export files.
The scripts comprises of sequence of commands that performs the required operation using pre-defined message templates. The Script Editor is
another powerful utility of MAPS, in which sequences of message templates can be grouped together in an order to create call flow.
Profile consists of values assigned to the variables. Profiles can be created using a utility called Profile Editor where the values can be assigned to the
variables. The original value of the variables in the message template is replaced with these assigned values.
MAPS provides the ability to create any number of scripts to simulate a real-time scenario with MAPS-ISDN and DUT.
Buyer's Guide:
| Item No. |
Item Description |
| XX600 |
Basic Client/Server Scripted Control Software |
| XX648 |
Message Automation and Protocol Simulation (MAPS) for ISDN
(XX can either be HDT, HDE, HUT, HUE, UTA or UEA depending upon the T1/E1 hardware) |
| |
Related Software |
| XX649 |
Message Automation & Protocol Simulation (MAPS) for ISUP
(XX can either be HDT, HDE, HUT, HUE, UTA or UEA depending upon the T1/E1 hardware) |
| XX647 |
Message Automation & Protocol Simulation (MAPS) for ISUP Conformance Scripts
(XX can either be HDT, HDE, HUT, HUE, UTA or UEA depending upon the T1/E1 hardware) |
| XX100 |
ISDN Analyzer Software |
| OLV100 |
Offline/ Remote ISDN Analyzer Software |
PKS120
PKS121
PKS122
PKS123
PKS124
PKS125 |
Message Automation & Protocol Simulation (MAPS) for SIP
MAPS - SIP Conformance Test Suite (Test Scripts)
Message Automation & Protocol Simulation (MAPS) for MEGACO
MEGACO Conformance Suite (Test Scripts)
Message Automation and Protocol Simulation (MAPS) for MGCP
MGCP Conformance Suite (Test Scripts) |
| VQT002 |
Voice Quality test (PESQ only) |
| VQT004 |
Voice Quality test (PAMS, PSQM, PESQ) |
| |
Related Hardware |
| HDT001/HDE001 |
Legacy HD T1 or E1 (PCI) Cards with Basic Analyzer Software |
| HTE001 |
Universal T1/E1 Card |
| UTE001 |
Portable USB based Dual T1 or E1 Laptop Analyzer |
Specifications are subject to change without notice.
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