Mobile VoIP Eric Chamberlain Founder, RF.com
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Transcript of Mobile VoIP Eric Chamberlain Founder, RF.com
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RingFree Mobility Inc. © 2009
What is Mobile VoIP?
•VoIP calling to and from mobile devices
•Calling everywhere from anywhere
WiFi
GSM
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RingFree Mobility Inc. © 2009
Challenges
•Mobile carriers
•Varying network conditions
•Limited computing resources
•VoIP is complex
•Codecs
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RingFree Mobility Inc. © 2009
Goals
•Easy to use
•Desk phone parity
•Any mobile phone/device
•Any VoIP provider or IP PBX
•Mobility
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Confidential - RingFree Mobility Inc. © 2008
Global Technology Market Shares
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RingFree Mobility Inc. © 2009
WiFi
•Good bandwidth for signaling
•Good bandwidth for media stream
•Limited coverage (~282,000 hotspots)
•No mobile signal
•Roaming is a challenge
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RingFree Mobility Inc. © 2009
3G
•Good for VoIP signaling
•Ok for VoIP media stream
•Limited coverage
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RingFree Mobility Inc. © 2009
EDGE
•Good for signaling
•Poor for media stream
•General coverage
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RingFree Mobility Inc. © 2009
GPRS
•OK for signaling
•Bad for media stream
•Available where mobile signal is available
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RingFree Mobility Inc. © 2009
Mobile devices
•Mobile Phones
•PDAs
•Smartphones
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RingFree Mobility Inc. © 2009
What about a SIP stack?
•Stack sips your battery
•Not architected for mobility
•Most mobile devices don’t have SIP stacks
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RingFree Mobility Inc. © 2009
Alternative to SIP?
•HTTP/XMPP/SMS (signaling)
• Could even be WAP
•Call local POP (media stream)
• Minutes are cheap
• Voice channel was designed for voice
•Server converts call to SIP and completes
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RingFree Mobility Inc. © 2009
Why does Mobile VoIP matter?
•3.5+ billion subscribers
•1,050 mobile networks
•282,000+ WiFi hotspots
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RingFree Mobility Inc. © 2009
Consumers
•18% of U.S. households are mobile only
•Want mobility
•Want advanced features
•Don’t want to buy, wait, and manage equipment
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RingFree Mobility Inc. © 2009
IT managers
•Reduce costs
•Move international calls to VoIP
•Mobile workforce
•Advanced features outside the office
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RingFree Mobility Inc. © 2009
VoIP Providers
•Customers don’t have to be at home or work to use minutes
•Reduced hardware, provisioning, shipping, & RMA costs
•Up-sell advanced features
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RingFree Mobility Inc. © 2009
How can you get started?
•Visit our site http://rf.com/
•Check with your VoIP provider
•A mobile SIP client may already be in your phone
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RingFree Mobility Inc. © 2009
Questions• Every VoIP provider
should become a Mobile VoIP provider
• Every mobile phone should provision like a desk phone
• Consumers should get the same functionality
Eric ChamberlainFounder, RF.com