What's the TPI?

What's the TPI? SearchSearch
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Anonymous
Posted on Friday, October 10, 2003 - 07:14 am:   

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
Posted on Friday, October 10, 2003 - 09:45 pm:   

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.