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True VoIP: Can you use SIP URLs?

True VoIP: Can you use SIP URLs?. SIP URL : Put it on your business cards !! Give your customers. Accept no substitutes! SIP: To support rich communications UA MUST have the ability to use SIP URL. Can you be found using a URL? Can you dial a URL? If yes to both: You have VoIP.

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True VoIP: Can you use SIP URLs?

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  1. True VoIP: Can you use SIP URLs? SIP URL: Put it on your business cards !! Give your customers. Accept no substitutes! SIP: To support rich communications UA MUST have the ability to use SIP URL Can you be found using a URL? Can you dial a URL? If yes to both: You have VoIP

  2. MG Controller “VoIP” version 00: Arbitrage for LD calls Media Gateway Media Gateway LEC Private IP LEC The “softswitch” emulates the PSTN switch and has various incarnations: - LD and international arbitrage - Class 5 switch services Mostly proprietary, works in one single network only (SIP to interconnect) User still get only an analog phone, or its equivalent No integration with other IP services, user sees no IP! Stiff competition from mobile phones and IP communications Significant equipment sales by manufacturers Less lucrative for service providers (oversupply of commodity telephony) Regulate! Tax!

  3. Private IP or Internet Gateway LEC Traffic Projection by Teresa Hastings/MCI Time “VoIP” version 01: Gateway service to the PSTN PSTN replacement for local + LD Limited lifetime as IP-IP traffic and mobile voice is increasing Regulate! Tax! *User sees no IP

  4. VoIP Islands: IP to IP calls go over the PSTN Gateway Gateway ISP PSTN ISP IP PBX IP PBX Regulate! Tax! • Most VoIP networks are isolated islands • Must use the PSTN for off-net calls • Enterprise VoIP supports IP-IP only inside the corporate network, or even only in one single location • Public VoIP networks support IP-IP only inside their own network • Global IP-IP is perceived as business threat by IP-PSTN gateway service providers (can add no value)

  5. PSTN Switch PSTN Beyond Voice: Global IP Communications DNS AOR to Contact Address ENUM query Reach any device on IP or PSTN SIP-1 SIP-2 Gateway Internet Presence, phone number or URL to reach any device on IP or PSTN IP communications are integrated with applications

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