Rendezvous Voice Services

1
Rendezvous Voice Services

• Zon-Yin Shae, Xiping Wang, Arup Acharya
• Debanjan Saha, Dinesh Verma (WRC)
• Ben Bo Yang, Wei Lu (CRL)

2
Project Goals

• VoIP Middleware (VAM) for Enterprise Applications
  
• On-Demand Virtualized Services Architecture
• Grid-like use of conference resources and
  conference service providers
• Conference server used are dynamically assigned,
  no fix bridge pre-reservation
• Policy based selection of conference resources
  for load balancing, security, cost, and
  performance
• Provides enterprise applications a single logical
  point for voice communication services
• Applications do not have to worry about the
  locations, availability, and vendors of
  conference server and proxy/gateway (practically,
  applications do not know)
• Application Scenarios
• Rendezvous phone meeting
• Dial in the rendezvous point to check and join
  meeting meeting Mobile workers can rendezvous
  with people via telephone and/or laptop without
  knowing the conference access codes or telephone
  number
• Voice and communication framework for Gaming
• Voice subsystem for network gaming using SIP
• Communication subsystem for network gaming using
  SIP

3
Value Proposition

• Users can access composite voice services by
  dialing in a single number (Rendezvous)
• Continuous user session services
• Seamlessly integrate/compose voice service
  components into more powerful applications
• On demand conference resource capacity (better
  capacity planning)
• The conference bridge is dynamically assigned to
  host the conference based on participants dial in
  location
• No need to remember and/or obtain conference
  bridge numbers and associated passwords
• Integrates conferencing service with Lotus
  calendaring system
• Does not require any special phone or software on
  the client
• A powerful example of composite voice
  applications and services
• Value to Enterprise save cash
• Choose service provider using a per-conference
  policy
• Leverage VoIP infrastructure using the legacy
  telephony network
• Value to network game service providers
• Generic framework for voice and communication
  subsystem

4
Overall System
WVR WVS WVAA (N)
WVR WVS WVAA (1)
VAM State Synchronization Server
PBX/ SIP Gateways
PUB/SUB
SIP Proxy/Cisco Call Manager(B2BUA)
VAM 1
VAM N
SIP
SIP
TDM
Conference Servers
5
VAM System Components
VAM State Synchronization Server
Conference API Unit
Call API Unit
Conference Topology Manager
StateSynchronizationUnit
VAM N
Policy Based Resource Manager
Session Service API Unit
Continuous SIP Session Service
Resource adapters
Cisco call manager adaptors, Cisco/Latitude
adaptor, MCI/Ubiquity adaptor, Premiere adaptor,
Convedia adaptor, etc
6
Rendezvous Conference Application
SIP
Lotus Calendar
Rendezvous VAM Policy BasedResource Selection
Application/VXML
WVR
Conference Servers Different locationsDifferent
providersDifferent vendors
SIP
SIP
RTP
RTP
7
Select Conference Server
VAM
VAM
VAM
8
Select and Manage Topology
Chairman
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer
Audio Mixer