1 TAC2000/2000.7 802.16 IP Telephony Lab An Architecture for IMS-based Anti-SPIT Services Dr. Quincy...
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1 TAC2000/2000.7 802.16 IP Telephony Lab An Architecture for IMS-based Anti-SPIT Services Dr. Quincy Wu Dr. Quincy Wu National Chi Nan University, Taiwan National Chi Nan University, Taiwan [email protected] [email protected]
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Transcript of 1 TAC2000/2000.7 802.16 IP Telephony Lab An Architecture for IMS-based Anti-SPIT Services Dr. Quincy...
11 TAC2000/2000.7
802.16 IP Telephony Lab
An Architecture for IMS-based Anti-SPIT Services
Dr. Quincy WuDr. Quincy Wu
National Chi Nan University, TaiwanNational Chi Nan University, Taiwan
[email protected]@ipv6.club.tw
22 TAC2000/2000.7
802.16 IP Telephony Lab
Outline IntroductionIntroduction
SPITSPIT
IP Multimedia Subsystem (IMS)IP Multimedia Subsystem (IMS) Anti-SPIT with IMSAnti-SPIT with IMS ConclusionConclusion
33 TAC2000/2000.7
802.16 IP Telephony Lab
Introduction Advantage of VoIPAdvantage of VoIP Problem of SPITProblem of SPIT Existing e-mail SPAM countermeasures may not be applied to Existing e-mail SPAM countermeasures may not be applied to
SPAM calls directlySPAM calls directly Currently most anti-SPIT solutions are proprietarily bundled on Currently most anti-SPIT solutions are proprietarily bundled on
the VoIP Server.the VoIP Server. We proposed an architecture to allow 3We proposed an architecture to allow 3rdrd party service creation. party service creation.
44 TAC2000/2000.7
802.16 IP Telephony Lab
Call Flow for IMS Session Setup
P-CSCF
I-CSCF
S-CSCF I-CSCFHome Subscriber Server
S-CSCF
P-CSCF
Application Server
Caller Callee
Visited Domain
Home Domain
55 TAC2000/2000.7
802.16 IP Telephony Lab
Example of AS: PTT PoC – Push-to-Talk over CellularPoC – Push-to-Talk over Cellular
Comneon, Motorola, Nokia and SiemensComneon, Motorola, Nokia and Siemens to assure interoperability to other PoC networksto assure interoperability to other PoC networks
66 TAC2000/2000.7
802.16 IP Telephony Lab
Design of Anti-SPIT Application Server
P/I/S-CSCF
Home Subscriber Server
P/I/S-CSCF
ISC
Sh
SIPSIP SIP
ISC
Caller Callee
Voice Mailbox
User Profile
Call Control
Blacklist/Whitelist
Application Server
77 TAC2000/2000.7
802.16 IP Telephony Lab
Signaling Flow of Anti-SPIT AS
88 TAC2000/2000.7
802.16 IP Telephony Lab
Conclusion AdvantagesAdvantages
Do-Not-Call ListDo-Not-Call List DNS Black ListDNS Black List All forwarded to voicemailAll forwarded to voicemail
Integration with existing servicesIntegration with existing services SCIM (Service Capability Interaction Management)SCIM (Service Capability Interaction Management)
