Project SMSLink - PDU Format Support
Please note: the purpose of the present document is not to provide a full tutorial on how to use the PDU format, nor is it a reprint of the PDU protocol spec. If you're looking for the latter, please refer to the ETSI GSM 03.40 standard, available for download from ETSI's website. There is also a very detailed description of the PDU format and its quirks available here, presented in a way that make it a lot easier to understand than ETSI's raw specs (please see also my related links section for links to sites with more info on PDU format).
Rather, the purpose of this page is to provide as accurate an information as I can on the level of support for the numerous PDU format features and quirks within SMSLink.
Table of Contents
The <numplan> field defines the context within which the next field, <oa> or "originating address", has to be understood. The most common numplans are 0x81 (local numbering scheme) or 0x91 (international numbering scheme).
But of course, there are situations where the originating address has to be hidden, or is meaningless, such as when the message was sent from a website. There will, of course, be other cases, but those are the ones we're aware of (thanks to the kind help of Thomas Gutzler).
<numplan> values supported in reception mode
<numplan> values supported in sending mode
At present, only DCS_PCCP437 is supported. More on this TBD.
|Last Modified: September 29th, 2006.|