ASN.1 to C/C++/C#/JAVA 
ASN.1 Products
ASN1C ASN.1 Compiler
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An ASN.1 to C, C++, Java, or C# code generation tool that supports
all major encoding rule types (BER, DER, CER, PER, and XER).
ASN1VE ASN.1 Viewer/Editor
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ASN.1 viewer/editor graphical user interface (GUI) tool for
analyzing ASN.1 encoded data.
ASN2XML ASN.1 to XML Translator
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ASN2XML is a command-line tool for translating ASN.1 binary encoded data to XML format.
ASN2CSV ASN.1 to CSV Translator
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ASN2CSV is a command-line tool for translating ASN.1 binary encoded data to CSV format.
XML Solutions
XBinder XML Schema Compiler
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An XML data binding tool for generating C/C++, Java*, or C# data structures and
encoders/decoders from XML schema specifications.
Telephony Solutions
Telephony APIs
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Telephony Application Programming Interfaces (API's) are
pre-compiled and optimized C/C++ function libraries, Java*
class libraries (.jar files), or .NET DLL's tailored to a specific ASN.1
application.
Objective Open H.323 (ooH323c) >>>
ooH323c is a simple open source H.323 protocol stack. An Asterisk channel driver is also available.
CSTA All-phases .NET DLL >>>
The CSTA all-phases .NET DLL is a Microsoft .NET component that can be used to communicate with a wide variety of PBX devices that support CSTA.
Free Web Tools
Free web services are available for converting ASN.1 syntax to
equivalent XML Schema (XSD) and for converting encoded ASN.1 binary
data to readable XML form
ASN2XML
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ASN2XSD >>>
