ikhlaq sidhu, ph.d. vice president, s4 division personal connectivity business unit march 1999 ®...

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: ikhlaq_sidhu@3com.com