[ASN1] ASN Tcap question

Casper <>
Fri Sep 24 07:42:20 CEST 2004

Hi Vance/Kenneth,

Thanks for the reply/advice.

My main problem here is not understanding how to use TCAP or what're the
TCMessages I should use. It's the code generated by ASN compiler. I don't
know if you could see the code, there're encoding/decoding functions for TC
Abort type, but has not generated the encoding/decoding function for TC
Begin, TC End, TC Continue, etc.

So I guess it's a problem with my knowledge on ASN. I appreciate if somebody
could confirm whether the ASN compiler should generate encoding/decoding
functions for those types (TC Begin, etc), or it's being generated hidden in
some other methods. In other words, how can I encode/decode a TC Begin
message using the generated code, for example?

Thanks in advance!

Best Regards,

-----Original Message-----
From: Vance Shipley [mailto:] 
Sent: Thursday, September 23, 2004 10:38 PM
To: Casper
Cc: ; 
Subject: Re: [ASN1] ASN Tcap question


Have a look at ITU-T Q.775 Guidelines for using transaction
capabilities.  It includes ASN.1 examples.

You must realize that the purpose of the ASN.1 in the specifications
isn't really to give you something you can compile into a working
library but in fact to specify the protocols.  You will at a minimum
need to write some of your own ASN.1 modules to pull it all together.


Vance Shipley
Motivity Telecom Inc.

On Thu, Sep 23, 2004 at 05:26:53PM +0600, Casper wrote:
}  Could you kindly show me how can I use those Parameterized Type
}  to encode and decode TCAP Messages? Even a sample or document would be
}  greatly appreciated.
}  Eranga

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