All SPs
LD Services
Local Access Service
Innovative Services
Unified Communications
ITSPs
Other SPs
LD Services
Local Access Service
Push to Talk
Early Adopters
Enterprise, ITSPs
International Arbitrage
Toll Bypass
IP Fax, Man. Services
Hobbyist
PC-PC
PC to Phone
Segments
Applications
Technology
IP Signaling Models
PSTN Signaling
Developments
Technology Needs
2000-2002
1999-2000
1998-1999
<1998
Analog
T1/E1 CAS/PR
SS7
H.323, MGCP, SIP
New World Business Model
Distribution of Functions to Enable Scaling
OSS&BSS at Scale
Embedded Systems GWs
Call Agent Servers
Appl/Feature Servers
Embedded Systems GWs
Call Agent Servers
Analog
T1/E1 CAS/PR
SS7
H.323, MGCP
New World Business Model
Distribution of Functions to Enable Scaling
OSS&BSS at Scale
PC Based Embedded Systems
Analog
T1/E1 CAS/PRI
H.323
Distribution of Functions to Enable Scaling
Peering Interconnect Models
ITSP Business Model
Analog
PC Based, PC S/W Analog Cards Proprietary Protocols
Proprietary
Understanding of Codec Delay Issues, Commercial Use
Standards
Fax Support
Digital Interfaces
Routing and Billing
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