telia/nortel pre-spirits implementation
DESCRIPTION
Telia/Nortel Pre-SPIRITS implementation. Sören Nyckelgård Telia Research AB [email protected]. Using SIP to bridge between old and new. The “SPIRITS server”. ... is a Protocol Converter and a SIP Server. Users’ SIP-enabled services. PSTN. ISDN. ISUP. INAP. IP cloud. SIP. - PowerPoint PPT PresentationTRANSCRIPT
Telia/Nortel Telia/Nortel Pre-SPIRITS implementationPre-SPIRITS implementation
Telia/Nortel Telia/Nortel Pre-SPIRITS implementationPre-SPIRITS implementation
Sören NyckelgårdSören Nyckelgård Telia Research ABTelia Research AB
Using SIP to bridge between old and new
The “SPIRITS server” The “SPIRITS server” The “SPIRITS server” The “SPIRITS server”
Users’ SIP-enabled services
““Signaling Control Gateway”Signaling Control Gateway” SS7-IP Protocol Converter
PSTN
ISDN
GSM
INAPISUP
MAP SIP
IP cloud
““Interconnector” Interconnector” E.164 databaseE.164 database SIP redirect (Number Portability)
SIP proxy (Service Router)
SIP
... is a Protocol Converter and a SIP Server.
PBX cluster
QSIG
Signaling Flow ExampleSignaling Flow Example
PSTN
INAP: IDPINAP: IDP SIP: INVITESIP: INVITE
(A)SIP: 301 MovedSIP: 301 MovedSIP: 301 MovedSIP: 301 MovedINAP: CONINAP: CON
SIP: 404 Not FoundSIP: 404 Not FoundINAP: CUEINAP: CUE SIP: 404 Not FoundSIP: 404 Not Found
Interconnector Interconnector E.164 databaseE.164 database Redirect : Number PortabilityProxy : Service Router
Signaling Control Signaling Control GatewayGateway
SS7-IP Protocol Converter
Service Service based on a SIP redirect server
(B)
or
SIP: INVITESIP: INVITE
GSM
ISDN
PSTN
CharacteristicsCharacteristics• No new protocolsNo new protocols
• No changes to existing networks No changes to existing networks except reconfigurationsexcept reconfigurations
• No media via MG unless one of No media via MG unless one of the endpoints is IP-homedthe endpoints is IP-homed
• Number PortabilityNumber Portability– bunus feature or first application– globally and between networks
• Services Services – globally distributive– need only to support SIP– SCN terminals appear as SIP clients– multi-network services
IPcloud
service
service
service