Delivering high-quality SIP applications and services

1
Delivering high-quality SIP applications and
services

• Jim HourihanVP Marketing Product Management

2
What are we talking about?

• SIP application service examples
• Voice
• Interactive video person-person
• Pay per view movies and video (streaming)
• Interactive gaming
• High quality
• SLA attributes high QoS (quality of speech),
  available, reliable
• Secure
• Money making
• Reachability

3
Reachability Metcalfes law and network value

• The usefulness, or utility, of a network equals
  the square of the number of users

High
64Z ?
PSTN
Voice reach
SP net
Corp. net
Low
EM 1985
IM 2002
Internet
LAN
Data reach
Low
High
4
End-to-end IP networks
5
The IP network border challenges
SLA assurance
6
SLA assurance across IP networks

• Admission control problems - voice, video, data
  stuff
• Skinny, unmanaged access pipes everywhere
• Fat, unmanaged transit pipes
• QoS Tower of Babel mediation
• QoS-based reporting, problem isolation routing
• Protocol interworking- SIP-H.323, H.323
  versions configurations

DiffServe-2
DiffServe-4
Frame
T1
VLAN-2
DSL
VLAN-3
NONE
7
Security between IP networks

• Access control what calls should be allowed
  in?
• Topology hiding
• DoS attacks -SIP proxies, gateways app
  servers IP PBX
• Transit networks disintermediation
• Bandwidth and QoS theft protection

Residential
Business
PSTN
Transit
Business
Internet
8
Settlement between IP networks

• Babbling business models for IP communications
• Two historical settlement models
• PSTN per-minute, destination-based termination
  fees
• Internet free peering for equivalent traffic
  volume exchanges, small access ISPs pay fees

/ minutes bundle per month
/home per month
/employee per month
/minute
/MB
Read fine print
Free on-net calls
/access pipe size per month
/minute
9
Session border controllers deliver high-quality
apps services

• New product category enables premium interactive
  communications across IP network borders
• Session real-time, interactive communications
  using SIP, MGCP, H.323, Megaco/H.248
• Border IP-IP network borders
• Service provider-customer/subscriber
• Service provider-service provider
• Control
• Security address preservation
• SLA assurance
• Revenue profit assurance
• Legal intercept

10
Session border controller applications
Security
SLA assurance
Business
Residential
Mobile
Revenue profit assurance
Law enforcement
11
Hosted IP voice services T1/frame/DSL

• Security
• Access control network topology hiding
• Call rate limiting to protect softswitch
• Hosted NAT traversal
• SLA assurance
• Session admission control - access aggregated
  link bandwidth
• QoS marking 802.1p,VLAN, ToS, DiffServe, MPLS
• QoS reporting
• Revenue profit assurance
• H.323-SIP interworking
• Bandwidth QoS theft protection
• Accounting session timers
• Legal intercept

SIP
T1
FT1
FT3
E2b
E1b
E2b
E1a
E3
SIP or H.323
12
VoIP SIP-H.323 trunking network peering

• SIP-H.323 interworking for reachability
• Call routing based upon real-time quality
• Call admission control - available transit link
  bandwidth
• Security - protect softswitch and gateways
• Access control network topology hiding B2B
  SIP UA H.323GK/GW
• Reporting
• Accounting session timers
• Observed QoS

A
SIP
Cisco H.323
Clarent H.323
PSTN
B
13
Voice ASP services

• Security
• Access control - session-based pinhole firewall
• Data center resource hiding
• SLA assurance
• App/media server load balancing
• Session admission control - access link
  bandwidth
• QoS marking
• Internal data center - 802.1p q
• External IP net - ToS, DiffServe, MPLS
• QoS reporting internal external data
  center
• Revenue profit protection
• Accounting
• Session timers
• Legal intercept

Data Center
SIP
RTP
14
Net-Net

• Extending network reach is critical to increasing
  value
• Extending reach introduces new border control
  challenges
• SLA assurance
• Security
• Settlement
• Session border controllers give service providers
  the CONTROL to deliver high quality and make
  money

15
Delivering peak performance for premium
interactive communicationsacross IP network
borders

• Acme Packet Net-Net session border controllers