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Living the SIMPLE SIP way SIP 2003 Paris,
January 2003
Jörgen Björkner VP Concept Development Chairman
SIP Forum Jorgen.Bjorkner_at_hotsip.com
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Time to move forward

• Sweden June 31 2002
• 84 Mobile phone penetration
• 63 Fixed line subscriptions incl. corporate
  lines
• Why fixed phone line?
• households ages 16-25
• 8 have only mobile phone
• 26 broadband Internet access (cable TV,ADSL,
  Ethernet to home)
• Internet Access pace maker for fixed telephony
• Broadband access revenue22 of fixed
  phoneaccess revenueSourceSwedish Post and
  Telecom Agencywww.pts.se (available in English)

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Will SIP Survive?

• VoIP Fixed Phone Dead
• NOT Dead Alive
• Internet services Alive
• SIP Internet Service AND NOT VoIP 2Alive

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SIP Internet Communication services

• Mobility
• Access service from anything anywhere on the
  Internet
• Presence
• Enabler of communication
• Instant messaging
• Voice
• Better than PSTN quality
• Video
• Collaboration
• Interactive Sessions

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SIP network cookbook
Internet
PC
InternetAccess
PSTN/GSM
TypicalUser
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Real examples

• My personal SIP usage the last 2 years...

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Communication tools
PC with SIP SIMPLE clientGSM Phone
SIP Phone
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Incoming call to fixed phone number-forking
Internet
PC
InternetAccess
PSTN/GSM
TypicalUser
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Incoming call
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Presence based call routing
Internet
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Place a call
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Security and NAT traversal

• SIP aware NAT/Firewall/ADSL modem
• Client implements SIP NAT traversal extensions
  and STUN
• Need of media proxies to deal with symmetrical
  NATs

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Incoming instant messages

• Presence based routing
• To PC if present
• To Mobile if not present on PC

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QoS Experience

• No problems experienced over Internet
• Access link may be bottleneck
• IP-IP calls better than PSTN!
• 8 kHz voice bandwidth compared to PSTN 3 kHz

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Conclusion

• It is not about fixed voice line replication
• SIP will survive ?
• Works today
• SIP Communication services makes sense to bundle
  with broadband Internet access
• New revenue stream
• Similar set up as email service for service
  provider
• SIP voice not degraded by peer-peer movie
  congesters in networks without QoS
• Gives mobility access to multimedia communication
  services similar to email access

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Thank You!

• Any questions?
• Jörgen Björkner
• VP Concept Development
• Hotsip
• Web www.hotsip.com
• Sip/mail jorgen.bjorkner_at_hotsip.com

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StockholmFebruary 24-28, 2003Hosted by Hotsip