Source: Telegeography, Inc. 2000 Why is it time to Redefine Communications?
Source: Telegeography, Inc. 2000 Price Per Minute (US$) 1.16 0.74 19891998 Why is it time to Redefine Communications?
Today’s PSTN / IN Call Features Control Matrix Switch PBX...... PSTN Call Features Control Matrix Switch IN Features The IN was invented to take the service features out of the switch and under control of the carrier
Softswitch Architecture A Re-creation of Telephony Services PBX...... Media Gateway Something? IP Network Packetize Voice Features Control Packetize Voice Media Gateway Softswitch Features Control Focus: New Footprint/Old Services SIP, BICC, H.323 Softswitch is actually one step back to before the IN, since features are back in the “switch”
Protocols Define the Architecture Not Vendors IP and UDP or TCP - Transport RTP and RTCP - Real Time Media IPSec and PKI - Security SIP and SDP - Session Control HTTP - Web Services XML - Data Exchange Format etc, etc, etc
Why Does it Matter? Innovation for New Revenue Streams Time to Market! –Reduced Integration Time and Complexity OSS and Service Integration Service Interaction –“Best of Breed” integration In-House Development Application Developers 3rd Party Service Providers Device Independent Services Manageable Support Costs –Re-usable and Lower Cost Tools –Web technical support skills
One Global Service Architecture 3 rd Party ASP Enterprise Network... PSTN Internet Protocol Network QOSSecurity Access Policies Directory Services Mobility OSS Routing Conferencing Centrex Messaging Web Servers Market Applications Content Management Commerce Services Presence Speech Recognition
Telephony Services IntraEnterprise Calling Private numbering plans –Call routing decisions in the SIP Server –Reduces management in enterprise gateways Off-net calling (Enterprise to PSTN) Call Management Services (“Centrex”) –Call Screening and Blocking –Find-me calendar routing –Call Forwarding - Unconditional, Busy, No-Answer –Alias called phone numbers/IP Addresses –Non-trusted caller permissions IP Phones
SIP Phones …and many other SIP phones and clients… Are true Internet hosts Choice of application Choice of server IP appliances Freedom of movement
SIP User Preferences Caller –Choice of service –Choice of language –Choice of media Text, voice, data, video –Choice of my contact list Where can I be reached –Choice of called party With who will accept to talk to –Choices for privacy Location, signaling and conversation Called –By caller list –By zone of origin –By time of day –Where to receive calls Phones, PCs, Palms, pager, fax, voice mail, e-mail, in conference –Privacy options Location, signaling and conversation Under user control, Via web or voice, PC, Palm computer or voice command
Presence Mobility Telephony Services IVR Web Servers Market Applications Content Management Commerce Services 3 rd Party ASP Enterprise Network... PSTN ConferencingMessaging Directory Services OSS Routing Centrex Internet Protocol Network SecurityQOS Access Policies
New Services Based on Presence Polite calls are possible: –Is user online (for me)? –Willing to take calls? –In another call? –May I join? Avoid unsuccessful calls –Location independence Conferencing is changed –Spectrum: Ad-hoc to scheduled Replaces call center ACD! Any media: –Text, voice, video, data
Communications Services Web Servers Market Applications Content Management Commerce Services 3 rd Party ASP Enterprise Network... PSTN Directory Services OSS Routing Centrex Internet Protocol Network QOSSecurity Access Policies Presence IVR ConferencingMessaging Mobility
Application Services Real businesses solving real problems with useful tools Web Interaction Centers Technical Support Healthcare/Medical Education/Training Business to Employee Vertical Industries of All Types
Application Services 3 rd Party ASP Enterprise Network... PSTN Internet Protocol Network QOSSecurity Access Policies Presence Mobility IVR Web Servers Market Applications Content Management Commerce Services Messaging Directory Services OSS Routing Centrex Conferencing
Where can we go? Consumer Small office Home office Small-Medium enterprise Global Enterprise Third World
What are the challenges? Unwavering commitment to open standards QoS Security Access complexity SDKs - Service Development Kits Conversion –More than analog to digital ?
The Impact of SIP Integration of communications with information and transactions on the Web Distributed, interoperable service architecture Industry and corporate applications on standard service elements Ultimate flexibility and mobility to make work and life more manageable
IP Communications Services Redefining Communications Teresa Hastings Teresa.Hastings@wcom.com