living the simple sip way sip 2003 paris, january 2003 jörgen björkner vp concept development...
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Living the SIMPLE SIP way SIP 2003 Paris, January 2003
Jörgen BjörknerVP Concept DevelopmentChairman SIP [email protected]
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 revenue
22% of fixed phoneaccess revenue
Source:Swedish Post and Telecom Agencywww.pts.se (available in English)
Will SIP Survive?
VoIP = Fixed Phone = Dead NOT Dead = Alive Internet services = Alive SIP = Internet Service AND
NOT VoIP = 2*Alive
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
SIP network cookbook
DNSServerEntry
SIPServer
PresenceServer
MobilePhone
PC
TypicalUser
Internet
PSTN/GSM
InternetAccess
SIPPhone
Soft phone
VoiceGateway
SMSGateway
Hosted Services
Real examples
My personal SIP usage the last 2 years...
Communication tools
PC with SIP & SIMPLE clientGSM PhoneMail client
SIP Phone
Incoming call to fixed phone number-forking
DNSServerEntry
SIPServer
PresenceServer
MobilePhone
PC
TypicalUser
Internet
PSTN/GSM
InternetAccess
SIPPhone
Soft phone
VoiceGateway
SMSGateway
+46 8 454 05 05
Incoming call
Presence based call routing
DNSServerEntry
SIPServer
PresenceServer
Internet
VoiceGateway
VoiceMail
Place a call
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– TURN like approach
Incoming instant messages
Presence based routing– To PC if present– To Mobile if not present on PC
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
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
Thank You!
Any questions?
Jörgen BjörknerVP Concept DevelopmentHotsipWeb: www.hotsip.comSip/mail: [email protected]
-12StockholmFebruary 24-28, 2003Hosted by Hotsip
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