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I have this spec, but my question was why kannel
does not ad the UDHL by itself, by taking the length of the UDH given to
it.
----- Original Message -----
Sent: Monday, July 07, 2003 8:02 AM
Subject: Re: UDH help
you can see
<<WAP-259-WDP-20010614-a>>APPENDIX-D
D.1 Binary Header Format For GSM SMS and GSM USSD
the WDP headers structure is defined using the User Data Header (UDH)
framework as defined in GSM 03.40: FIELD LENGTH Length of User Data
Header 1 octet Information Element Identifier âAâ 1 octet Length of
Information-Element 'A' 1 octet Information-Element 'A' Data 1 to ânâ
octets Information-Element-Identifier 'B' 1 octet Length of
Information-Element 'B' 1 octet Information-Element 'B' Data 1 to ânâ
octets . . . . . . . . . . . . Information-Element-Identifier 'n' 1
octet Length of Information-Element 'n' 1 octet Information-Element 'n'
Data 1 to ânâ octets Figure D- 1 The Generic User Data Header Structure in
GSM SMS and USSD The âLength-of-Information-Elementâ fields shall be the
integer representation of the number of octets within its associated
âInformation-Element -Dataâ field, which follows and shall not include itself
in its count value. The âLength-of-User-Data-Headerâ field shall be the
integer representation of the number of octets within the
âUser- Data-Headerâ information fields which follow and shall not include
itself in its count. Byte order of integers is most significant byte first.
In case the information word of the payload data is different from an octet
then the binary header is padded with bits to the start position of an
information word (GSM uses a 7-bit alphabet) in most cases. Thus the header
is compatible with legacy devices not supporting the WDP Datagram
protocol.
Best Regardsï éæé
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----- Original Message -----
Sent: Wednesday, November 05, 2003 11:24
PM
Subject: Re: UDH help
No, and that was the problem.
Why does kannel need the length - can't this be
calculated per UDH?
Thank you.
----- Original Message -----
Sent: Wednesday, November 05, 2003
11:38 AM
Subject: RE: UDH help
are you sure
your UDH contains UDL length, the first octet in UDH ?
I posted this last week, waited for some
help, but nada... :(
I need someone's help on this please, as
the problem is becoming urgent:
I'm sending an SMS that contains a UDH to a
client, but the client seems to ignore it for some reason. So I wanted
to see what it looks like on the receiving end. I sent an SMS message from one kannel with the following header:
X-Kannel-UDH: 05040E06FDE8
I received the SMS message on another
kannel and got: X-Kannel-UDH: 040E06FDE8. It seems like the IEI ("05")
got "chopped off". Why is that?
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