Different TON/NPI for text originators

[Rob GB]

Hi all,
My customer wants me to send different ton and npis depending upon the 
source/destination number, for instance, for normal msisdns like "55678990" 
they want me to send this:
source-addr-ton = 1source-addr-npi = 1
but for short numbers like "2003" or labels like "HotTunes" they want me to 
send these settings:
source-addr-ton = 5source-addr-npi = 0
How can I get Kannel doing that?
Thanks in advanced
///RGB