Stipe Tolj wrote:
Bambang Sadikin schrieb:
dear All :
has anyone put or starting to put ussd protocol stack in kannel
software systems ?
the USSD subystem as defined by GSM 03.90 spec is "beyond" the IP
layer on which Kannel interacts with the SMSCs of a network. In fact
USSD is more related to the MAP/TCAP signaling layer (ss7), then on
the pure SMSC inter-connection.
Some protocols, i.e. SMPP v3.4 allow connecting to USSD gateways (or
other network elements) that provide a SMPP interface to the USSD
string exchange. But this depends on the capabilities of the SMPP server.
There is no standardized IP based protocol to use for USSD gateway
connectivity. So most USSD gateway vendors use their own protocol, or
try to use a well-known, like XML over HTTP (SOAP) or SMPP.
Stipe
TLV_OCTETS(its_session_info, 2, 2) in PDU submit_sm can provide to
hold USSD session
--
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Yury Mikhienko.
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