not implement any smpp specific wap parameters because these would not work with other protocols.
UDH is not a protocol parameter, optional or otherwise, it is part of the user message. Port udh tells what port
should handle the message. Because phone push application is listening at that port, the push would be handled
properly. (If there is no UDH present, the phone assumes that it got a plain sm)
For implementing WAP over SMS wapforum (currently open mobile alliance) specs WAP-200-WDP-20000219-a.pdf.
Url is http://www.wapforum.org/what/technical_1_2_1.htm.
Note again that Kannel implement this document, not smpp specific one.
Aarno
On Tuesday, June 24, 2003, at 05:05 AM, ghhou wrote:
Dear sir,
�
Thank you very much!
�
According to what you said, kannel doesn't implement the UDH header now. Do you have a plan?
�
and would you pls tell me which optional parameters in submit_sm are UDH header? and which protocol depicts the UDH?
�
Best Regards,
Guanghua Hou
UTStarCom BJR&D
----- Original Message -----
From: Andreas Fink
To: ghhou
Sent: Sunday, June 22, 2003 6:56 PM
Subject: Re: SMPP header
On Dienstag, Juni 24, 2003, at 04:44 Uhr, ghhou wrote:
Dear sir,
�
How to explain the optional parameters(source_port, destination port) in�submit_sm of �SMPP. SMPPv3.4 page62 says �"This parameter should be present for WAP applications." But kannel doesn't implement these optional parameters.
�
esm_class in bearerbox is given the value "0x43".�
�
��� ��� ��� ��� ��� ��� x x x x x x 1 1 Store and Forward mode
��� ��� ��� ��� ��� ��� x x 0 0 0 0 x x Default message Type (i.e. normal message)
��� ��� ��� ��� ��� ��� 0 1 x x x x x x UDHI Indicator (only relevant for MT short messages)
Right. UDH indicator must be set to tell the handset that there is a user data header present.
the user data header is prepended to the payload.
�This value doesn't indicate this short message is WAP push .
It does not. SMSC's are there to transport SMS, not wap data. an SMSC is not a wap gateway of any sort.
So it doesn't have to know anything about wap push but still can transport the WAP push PDU.
Check out the GSM specs for SMS-PDU's in the GSM networks. There is nothing in there about WAP. WAP was invented far after SMS so SMSC's don't have to know if this is a wap push. Handsets do. Thats why there is a UDH header indicating WAP ports.
Andreas Fink
Global Networks Switzerland AG
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