Embed Size (px)
Citation preview
Open Standards:Communications at Your Desktop
SmartCity Summit, April 29th, 2003
Anne L. Coulombe
Head of SIP-Based Solutions, Mitel Networks
What Does It Take To Play?
Communications at the desktop
What open standards do for YOU
SIP is the multimedia standard that links it all together
Devices that play in the SIP telephony market
An idea of configurations
Conclusions
The desktop has evolved into the epicenter of business communications
PCs, phones, PDAs and cell phones are now a regular part of our professional life
While PCs and wireless devices have evolved dramatically over the last 5-7 years the business phone has not until now
SIP is the glue to bring disparate systems and devices together.
SIP is an IP conduit to unify the desktop
The Ever-Changing Desktop Device
Open Standards Customer Benefits
Assumes use of IP (Internet Protocol), networks, Internet
Scalable and futureproof
Simplified communications network reduces system costs
Delivers voice, e-mail, video and data to every desk
Connects best of breed in multi-vendor environments
Strengthens corporate culture inside distributed organizations with consistency across disparate systems
Potential for new competitive business advantages
SIP – The Glue
SIP is to VoIP what SMTP is to email and HTTP to the Internet
The Session Initiation Protocol (SIP): Open peer-to-peer signaling protocol used for
establishing sessions in an IP network Defacto standard for VoIP
A session could be a simple two-way phone call, data exchange, or a collaborative multimedia conference
A SIP server and client have complete control over their session (voice, video, conference, Instant Messaging, etc.)
This is unlike traditional telecom systems, where services are controlled by a central switching element
SIP – A Bit More
Unique opportunities for innovative services
Service providers are creating new revenue-generating opportunities by bridging voice and data
Open APIs
3rd Party development model verticals, custom apps
Strong instant messaging & presence capability
Windows XP supports SIP
Mobile phone companies are doing SIP development
SIP is an RFC from the Internet Engineering Task Force (IETF), the global Internet standards body
Mitel is an active SIP Forum member
Mitel is hosting next SIPit, an industry interop event
Multimedia SIP Devices
Hard Phones: wired, wireless, GSM
Softphones: Windows XP, SIP Softphone
PCs, servers, PBX’s, Media servers
PDAs
Collaboration, Unified Messaging, Instant Messaging
Video-conferencing
Issues Affecting Voice Quality
Solving the top five voice quality issues:
Jitter buffer
Error interpolation & concealment
Traffic shaping & routing
Codecs: G.711, G.729, G.722.2, moving to wideband
Echo canceling
And now you want to measure this:
PESQ, MOS score on a VoIP network
Compared to cellular
Compared to toll quality
Bottom line for a user: it just has to sound GREAT
Internet or Intranet
PSTN
XP
Multiple Small Offices in Different Cities (3050 ICP)
Modem3050 ICPApplicationsManagement
Center
POTS Phone
SIP-EnabledSwitch/Router
5055 SIP Phones
Enterprise
Each Remote Office in a Different City
XP
3050 ICP
Broadband
BroadbandPrinter
SIP-to-PSTN Gateway
Internet or Intranet
XP
Opportunities: Hybrid Hosted Configuration
Modem
Mitel 3050 ICP ApplicationsManagement
Center
POTS Phone
Switch
5055SIP Phone
Enterprise
Broadband
Application Server
SIP Proxy
PSTN SIP-enabledFirewall
SIP-PSTN Gateways:•in the provider cloud•and/or CPE equipment
RemoteUser
OtherCompany
Printer
SIP-to-PSTN Gateway
PSTNGateway
Natural ConvergenceBooth #1404:
Natural Convergence’s SilhouetteVoice over IP Service Network for Smart City Summit 2003
Hosted by:
LINES
Civic Centre
IP Telephones
Aberdeen PavilionBelNet
EthernetTrunk
Public Switched Telephone Network
BelNetInfrared Link
PSTN
IP Access Network
Hosted IP-PBX Architecture
Service Provider
TrunkGateway
VOISSServers
VOISSVPFW
Enterprise
Router/FW
IP Phones
Enterprise
IAD/FW
IP Phones
AnalogPhones
SOHORouter/
FW
IP Phone
NOCs
NetworkServers
ApplicationServers
NetworkServers
ApplicationServers
RelayServers
Customer Premises
AnalogPhones
KTS / PBXIP PhonesPC Clients
DataPOPs
Gateway
Media Servers
Softswitch
TDMNetwor
k
Proxy ServerVoIP
Network
Media Servers
Network Gateway
Media Servers
Voice POPs
TDMSwitch
Network Connectivity
Core Network
Conclusions
Desktop is the epicenter of business communications
Voice technology: mission critical technology 125 years after it’s creation
SIP is the glue that links everything together
Open standards are transparent to end-users
Applications are the key differentiator at the desktop
VoIP sounds wonderful
Thank You
