What's the TPI? | Search |
NowSMS Support Forums ⬆ MMS & SMS Technical Discussions (unsupported) ⬆ Archive through October 29, 2003 ⬆ |
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Author | Message | |||
Anonymous |
HI,anybody know how to use TPI of WTP? what effect is it? what happen without TPI in WTP PDU? and it can be omitted ? | |||
Bryce Norwood - NowSMS Support |
Refer to Section 7.10 and 8.4 of the WTP specification. Generally speaking, I wouldn't include a TPI in a request or response unless you had a good reason to. But you should be prepared to receive a TPI, because that makes the WTP header variable length, and can affect your parsing logic. Section 8.4 of the WTP spec documents defined TPIs. I don't know that any of the TPIs are particularly useful except for those related to segmentation-and-reassembly (SAR). You can't implement SAR without supporting at least some of the TPIs. |