Hi,
I'm in the process of setting up USSD -> web application integration
with a mobile telecoms provider (I have SMPP 3.4 based access to their
gateway, and they support USSD messaging).
While looking at options for setting this up, and kannel came up,
however looking through the mail archiv
Your USSD provider should give instructions how to use the api. Smpp is merely
used to convey the messages to/from the user by using the standard pdus
(submit_sm and deliver_sm). Probably some TLVs will be used (imsi is a good
example) and other notable difference is that ussd is session based,