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, so you
might have session_id as a parameter somewhere.
Anyway, you need to study your provider’s api and ussd as a service a little
bit.
—Davor
> On Jan 20, 2019, at 5:35 PM, Damian Dimmich
> wrote:
>
> 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 archives it's not entirely clear that USSD is
> supported out of the box with Kannel, potentially requiring
> patches/recompilation.
>
> I've got kannel 1.4.4-4 running on a debian 9 machine, and connect to that
> via a python smpp client library, however I can't seem to figure out how to
> simulate initiating a USSD session. Are there some command line
> tools/clients that can do this or is more a case of write your own? I've
> spotted fakesmsc but can't see how to generate ussd traffic from that.
>
> Ideally I'd like to configure kannel/smsbox/sms-service to call into an HTTP
> api with a session id/phone number/subscriberid - so that I can go back and
> forth between the user and my server to get answers to a few questions.
>
> Using SMPPSim's inject_mo I can simulate SMS and SMS responses already to my
> HTTP based application server.
>
> Thank you very much for any pointers in advance, I attach my current config
> below.
>
> Damian
>
>
> group = core
> admin-port = 13000
> admin-password = bar
> admin-deny-ip = ""
> admin-allow-ip = "*.*.*.*"
> smsbox-port = 13003
> wdp-interface-name = "*"
> log-file = "/var/log/kannel/bearerbox.log"
> box-deny-ip = "*.*.*.*"
> box-allow-ip = "127.0.0.1"
>
> group = smsbox
> # smsbox-id = mysmsbox
> bearerbox-host = localhost
> sendsms-port = 1025
> global-sender = 1000
> log-level = 0
> log-file = "/var/log/kannel/smsbox.log"
> mo-recode = true
> sendsms-port = 13013
>
> group = smsc
> smsc = smpp
> smsc-id = SMPPSim
> host = 10.10.10.1
> port = 2775
> transceiver-mode = 1
> smsc-username = smppclient1
> smsc-password = password
> system-type = 'VMA'
> #service-type = 'test'
> interface-version = 34
> system-id = smppclient
> preferred-smsc-id = SMPPSim
>
> group = sms-service
> keyword = default
> # get-url = "http://localhost:8000/api/v1/sms/?phone=%p=%a;
> # accept-x-kannel-headers = true
> post-url = "http://localhost:8000/api/v1/sms/;
> catch-all = true
>
> group = smpp-tlv
> name = ussd_service_op
> tag = 0x0501
> type = integer
> length = 1
>
>
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