Problem with send several SMSs with kannel

Hi guys,

with my company we are trying to send several (we mean something like  
5000->10000->15000
SMS for any send) messages using SMPP and kannel (our smsc has ask us  
to use kannel
framework in order to connect to their SMPP server).

Actually in order to make it works we have two BIG problems:

[preamble]
Looking at the kannel documentation here:
http://kannel.org/download/kannel-userguide-snapshot/userguide.html#POSTXML

it's possible to use an XML post in order to send N SMSs with one single post.
Something like:

<da><number></number></da>
<da><number></number></da>
<da><number></number></da>
[...]

The BIG questions are:

1 - How it's possible setup more binfo (billing info profile) for any  
number setup on
this single post? It's look that is supported only 1 binfo profile for  
post sending, with
the problem that if I need to send SMSs worldwide, my smsc cannot  
distinct the price of
the SMSs.

2 - In develop enviroment, while we are trying to send however this  
SMSs (and they arrive
on the phone) the dr (delivery report) works only sometime (and randomly).
In fact for example if I try to send 3 smss (or more) in the way  
described before, we
receive sometimes only 1 dr, and sometimes non of them.
Looking on the status of the kannel server (i mean  
[servername]:13000/status) we have
that the most part of the delivery report are still in queued and  
never sended. Have you
some ideas on why this happen?

Thank you for your support.

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