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<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Hi William,<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks for the advice.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>This is for a R&D project. We plan to
look at the feasibility of using Erlang/OTP platform for development. Currently
doing investigation on ASN.1 compiler on Erlang. I’m very new to ASN.1,
so find it difficult to capture some parts of the specification. The GSM/UMTS
MAP ASN.1 spec is alright. But I couldn’t still figure out how to use
TCAP ASN.1 spec can generate the TCAP Begin, Continue, End, etc message
encoding/decoding functions.<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>With help from some generous people out
there, I could understand that I will have to create the ASN.1 spec of mine or
find a standard spec, which will Instantiate the Parameterized Type specified
in the TCAP. If you could point me to a standard spec like that or give me a
sample how I could write something like that, would be very helpful. How to
blend the MAP and TCAP ASN.1 specs?<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Thanks!<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'>Eranga<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
10.0pt;font-family:Arial;color:navy'><o:p> </o:p></span></font></p>
<p class=MsoNormal><font size=2 color=navy face=Arial><span style='font-size:
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<p class=MsoNormal><b><font size=2 face=Tahoma><span style='font-size:10.0pt;
font-family:Tahoma;font-weight:bold'>From:</span></font></b><font size=2
face=Tahoma><span style='font-size:10.0pt;font-family:Tahoma'> William H.
Skelton [mailto:W.Skelton@SOLINET.com] <br>
<b><span style='font-weight:bold'>Sent:</span></b> Friday, October 01, 2004
3:12 AM<br>
<b><span style='font-weight:bold'>To:</span></b> casper2000a@omnibis.com<br>
<b><span style='font-weight:bold'>Subject:</span></b> Fwd: [OSS_ASN1] [ASN1] ASN.1
Parameterized Types... pls help</span></font><o:p></o:p></p>
</div>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'><o:p> </o:p></span></font></p>
<p class=MsoNormal style='margin-bottom:12.0pt'><font size=3
face="Times New Roman"><span style='font-size:12.0pt'>Hi Eranga,<br>
<br>
We found you can avoid some of the problems by using earlier TCAP
specifications, which are fully compatible (I think), but simpler.<br>
<br>
Just as a matter of interest, is this a commercial or university project you
are working on? Are you building your own tools?<br>
<br>
William<br>
<br>
<o:p></o:p></span></font></p>
<p class=MsoNormal><font size=3 face="Times New Roman"><span style='font-size:
12.0pt'>Delivered-To: 23-asn1@asn1.org<br>
From: "<st1:place w:st="on"><st1:City w:st="on">Casper</st1:City></st1:place>"
<casper2000a@omnibis.com><br>
To: <asn1@asn1.org>, <erlang-questions@erlang.org><br>
Date: Wed, 29 Sep 2004 18:07:45 +0600<br>
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cc: <st1:PersonName w:st="on">eranga@omnibis.com</st1:PersonName><br>
Subject: [OSS_ASN1] [ASN1] ASN.1 Parameterized Types... pls help<br>
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<br>
</span></font><font size=2 face="Courier New"><span style='font-size:10.0pt;
font-family:"Courier New"'>Hi All,<br>
<br>
I'm finding difficult in absorbing "How to use ASN.1 TCAPMessage to
transport GSM MAP". The problem is how to generate TCAP Begin, Continue,
End, etc messages.<br>
<br>
I read about the ASN.1 Parameterized Type, but still I could find the match of
ASN.1 specs for MAP and TCAP. I thought below might be the way, but still that
gives some compilation errors.<br>
<br>
mapSpecificAS ABSTRACT-SYNTAX ::= {<br>
MapSpecificPDUs<br>
IDENTIFIED BY gsm-MessagingId<br>
}<br>
<br>
MapSpecificPDUs ::=<br>
TCMessage{{ MAPOperations-Invokable}, { MAPOperations-Returnable}}<br>
<br>
<br>
MAPOperations-Invokable OPERATION ::= <br>
{sendRoutingInfoForSM | mo-ForwardSM |
mt-ForwardSM} <br>
MAPOperations-Returnable OPERATION ::= <br>
{reportSM-DeliveryStatus | alertServiceCentre |
informServiceCentre | readyForSM}<br>
<br>
The error is as below (Erlang ASN.1 compiler),<br>
{error,{asn1,[{error,{type,57,<br>
'TCAPMessages',<br>
'MapSpecificPDUs',<br>
{asn1,{duplicates_of_the_tags,<br>
[{'UNIVERSAL','INTEGER'}]}}}}]}}<br>
<br>
For your information, I have attached TCAPMessages.asn and
MAP-ShortMessageServiceOperations.asn.<br>
<br>
I appreciate if anybody out there can give me some clue to solve this problem.<br>
<br>
Thanks in advance!<br>
Eranga<br>
</span></font><br>
<br>
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