Embed Size (px)
Citation preview
Ikhlaq Sidhu, Ph.D.Ikhlaq Sidhu, Ph.D.Vice President, S4 DivisionVice President, S4 DivisionPersonal Connectivity Business UnitPersonal Connectivity Business UnitMarch 1999March 1999
®
SIP UpdateSIP UpdateVON Europe 99VON Europe 99
Advanced Technologies, 3Com
®SS7
5E5E
IPNETWORK
4E 4E4E
CO
CO
Enterprise LAN Cable ModemxDSL
LEC Bypass
MTA or Ethernet phone
GW
Smart clients (not trusted)Billing / fraudulent usageCLASS featuresPrivacyQOS
Advanced Technologies, 3Com
®SS7
5E5E
IPNETWORK
4E 4E4E
CO
CO
GW
Trunk Based Toll Switch Bypass
GW
Transparent long distance Single stage dialingSS7 Inter-workingCore network convergence
Advanced Technologies, 3Com
®SS7
5E5E
IPNETWORK
4E 4E4E
CO
CO
ITG
MTA or Etherphone
Access BasedLEC Bypass
Trunk BasedToll Switch Bypass
Inter-operation between LEC and Toll Switch Bypass- Multiple providers- Smart phones and PSTN trunks
- Internet or Private IP Nets
Advanced Technologies, 3Com
®
SIP / MGCP / ISUPSIP / MGCP / ISUP
Telephone
To SS7
CA CAIAM Create Conn
Invite
Create Conn
ACK IAM
ACMRinging
ACM
ANM200 O K
ACKANM
ACK
Telephone
MGCP
MGCP
GatewayCA
CA
To SS7
Gateway
IP
ACKM odify Conn
G W G W
SS7 SS7M G C P M G C PSIP
R TP Audio
Advanced Technologies, 3Com
®
Which protocols go where?Which protocols go where?
PSTN Interface(MGCP)
IP Net(SIP)
• Trunk Gateways• Residential Gateways
• Internet backbone• PCs running Voice Apps • Internet phones • Devices with GUIs
PSTN(SS7)
• SS7•PSTN dialing plans
Contact: [email protected]
