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ACCESS TECHNOLOGIES
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INTEGRATED VOICE AND DATA
PACKET SWITCHING
WIRELESS ACCESS SYSTEM
One single coherent packet switching technology for the
implementation ofpublic access systems for integrated voice and
data
BreezeACCESS
Telephone
Network
Data
NetworkPC PC
Data access system
Service
provider
PoP
User
location
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ACCESS TECHNOLOGIES
- ISP/ITSP/Competitive Telco is connected to:
- Internet via a router
- PSTN via a gateway- ISP/ITSP/Competitive Telco may accept from
its
clients:
- Data packets to be sent over Internet, via router
(Internet access services)
- Voice signals from local telephone network and
convert them into VoIP packets to be sent over
Internet ,via router (IP Telephony services)
- Packetized voice to be sent
- over Internet, via router
(IP Telephony services)
- over PSTN, via gateway
(Local Loop services)
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ACCESS TECHNOLOGIESVoice overPOTS
- Switched network, one telephone per line
Service provided:- Internet telephony
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ACCESS TECHNOLOGIESVoice over ISDN
- Switched network, two or more telephones per line
Service provided:- Internet telephony
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ACCESS TECHNOLOGIESData overPOTS
- Low rate
- Data instead of voice
- Simultaneous data and voice requires two separate
lines- Switched network, not designed for bursty traffic
- Long connections time violate Erlang rule andblocks the
network
- Line capacity is not upgradable
Service provided:- Data access to Internet via router
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ACCESS TECHNOLOGIESData over ISDN
- Better rate
- Data and voice multiplexed
- Switched network, not efficient for bursty traffic
(data)- Long connections time violate Erlang rule and
blocks the network
- Line capacity is upgradable from 128 Kbps to E1 orT1 (but
nothing in between)
Service provided:- Data access to Internet via router
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ACCESS TECHNOLOGIESData overleasedline
- Poor availability- Dedicated line, not efficient for bursty
traffic (data)
Service provided:- Data access to Internet via router
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ACCESS TECHNOLOGIESData overT1/E1
- Acceptable rate (1.544/2.048 Mbps)- Payment at installation
time plus additional fixedmonthly payment => expensive
Service provided:- Data access to Internet via router
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ACCESS TECHNOLOGIESData overFrame Relay
-64, 128, 25
6kbps- Efficient for bursty traffic
- Payment at installation time, plus monthly payment
- Higher rates are expensive
Service provided:- Data access to Internet via router
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ACCESS TECHNOLOGIESSummary
- No voice/data integration for access to Internet andintranet
telephony services (except ISDN, which isnot efficient for data).
Voice and data requireseparate lines.
- Data access via circuit switched/dedicated lines, notdesigned
for bursty traffic and therefore inefficientfor data. (except Frame
Relay, which is expensive athigh rates)
- E1/T1 - payment for the installation plus additionalmonthly
fee
- Money from user goes to ISP/ITSP and to localPTT!
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ACCESS TECHNOLOGIESVoice and Data overWireless
- Integrated voice and data over IP- Packet switching technology
up to the end user- High access rate (3Mbps shared)- Easy upgrade
up to 3 Mbps per user- Always connected (no dial needed)- Better
management as the whole network - up to the
end user - is owned by same entity- Virtually zero installation
time- Range: up to 15 km
AU - Access UnitSU - Subscriber Unit
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ACCESS TECHNOLOGIESVoice and Data overWireless
- Low initial investment (low risk business plan)- low cost base
station (AUs)- modular growth
- Linear investment- Low price sensitivity to customers density-
Easy redeployment- Possible platform for mobile services
Service provided by ISP/ITSP:- Data access to Internet via
router
- Voice access to Internet via router
- Voice access to PSTN via gateway
IP Broadband Wireless Local Loop
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ACCESS TECHNOLOGIES
