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VoIP
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Key terms about VoIP
H.323
SIP
CODECs
G.711
G.729
G.723
FXS and FXO
Gateway
T.38 FAX
These are what
everyone talks about
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What is VoIPthe technology
Voice over IP (VoIP) samples 1060ms of voice with anAnalog-to-Digital conversion process (CODEC). This is similarto the way the phone company does it today with PCM (Voiceover T1/E1).
These samples are placed into an IP packet and sent over thenetwork.
A far-end device reassembles the voice stream on the otherside.
IP Network
Internet
VoIP
Gateway
Analog or
Digital voice
circuit
VoIP
GatewayIP Packets with Voice Samples
Analog or
Digital voice
circuit
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Typical VoIP System Elements
IP Network
PSTN
Terminals
IP Phone
Multimedia PC
Gateways
PSTN, ISDN
V5, SS7
Softswitch
GatekeeperCall-Manager
Softswitch
Network-Server
Network Interworking
Signaling Conversion
Media Conversion
Packetization and reassembly
ISDN, PSTN, V 5.2, SS7
Client Registration
AuthenticationStatus
Number Mapping
Accounting
User Interaction
Dial-tone, Ringtone, etc
Registers with Call Control
Media Conversion
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VoIP Technology: Media Standards
G.711
G.726
G.729
G.723 @ 6.3
GSM-EFR
Comments
Toll quality, full rate, lowest delay
Free: good compromise
Licensed: best compromise
Licensed: low bandwidth
For Reference: mobile phones
CodecCodec
Rate
[kb/s]
64
16 - 40
8
6.3
12.2
IP BW/Call
one way
[kb/s]
96
32 - 56
24
17
-
Recommend G.711 if no bandwidth limitations apply!
Toll Quality
Low Delay
Best all around!
Packet
Length
[ms]
10/20
20
20
30
Various CODECs are used for voice compression:
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Fax over IP: w tch out for this1) Fax Relay, T.38
IP
A/D D/A
Fax Bypass, T.30 Fax over G.711, 96Kb
Fax-Relay, T.38 packets
2) Fax Bypass, G.711
T.30 Fax T.30 Fax
The Fax tones are terminated in the
gateway, relayed in packet form andre-modulated at the far end.+ Uses less bandwidth+ Is reliability(offers redundancy)- Is less interoperable
The Fax is carried in a G.711 voice
channel just like a regular phone call.
+ Is interoperability with any gateway- Uses more bandwidth
- Is less reliability
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Signalling Standards Snapshot
Signaling protocols defines how VoIP equipment communicate to actually
set-up, establish and release telephone calls over IP networks. For
example
Ring, Talk and Hang-up.
H.323
The oldest and most widely supported call control protocol.
Current Version is v4 (we support it now!)
Is actively enhanced by the international standards community
Offers the most interoperability between 3rdparty equipment.
Business focused
SIP
The newest of the call control protocols
IETF (Internet based); looks like html; most extendable
Messaging for all types of user devices (phones, PC, GSM)
Carrier/CLEC focus
We support it today!
MGCP
Oriented towards softswitch carrier architectures
Focuses on the central site over CPE
Supported in SmartNodes today!
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VoIP Terms Defined (1)
Softswitch
Call control and route server in a VoIP network providing user AAAservices and intra-network call switching. This is Independent of the VoIPprotocol (H.323, MGCP, SIP).
Gatekeeper (GK)
H.323 specific term. The GK is responsible for the management of theusers (clients) and gateways in his H.323 area (zone). Implemented assoftware on a server or integrated as a function in a Gateway.
Gateway (GW) (This is what SmartNodes do!)
Signaling or Media-Gateway (may be combined in one equipment)provides conversion between different networks-protocols or technologies.
H.323 Client
Terminal in an H.323 network. IP-Phone or Soft-Phone (e.g. NetMeeting).
AAA
User Authentication, Authorization, Accounting. Required functions for acommercial VoIP Service. Carrier centric and provided by Gatekeeper.
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VoIP Terms Defined (2)
RAS
Registration Authentication Status: H.323 Sub-protocol used to register log-in anH.323 Gateway or Client at the Gatekeeper
SIP User Agent
SIP Equipment or software representing an end-user. The user agent includes a a
SIP client (to initiate calls) and SIP server (to terminate calls). This is inside a
SmartNode gateway.
SIP Network Server
SIP Equipment or software in the network required to register and localize User
Agents and their end-users. A SIP Network Server can operate in redirect or proxy
mode. This is a server box routing calls.
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Telephony Terms
THESE YOU HAVE TO KNOW!
BRI, S0, S/T 2 B + 1 D channel > 2 voice connections
E1, PRI, S2m 30 B + 1 D channel > 30 voice connections
T1, PRI 23 B + 1 D channel > 23 voice connections
FXS phone jack, 2-wire POTS interface
FXO line jack, 2-wire POTS interface
Switch
NTBRI/PRI
TE
FXO
2-wires
4-wires4-wires
FXS
2-wires
Switch
FXSFXO
IP
ISDN
POTS
TE
IP
NT
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Building Blocks for QoS (2)
A Shaper can limit a Traffic Class to a defined bandwidth
Frees Bandwidth for real-time (voice) traffic without packet loss
Improves the Performance of interactive Applications
Very usefull for short connections e.g Web requests
WWWSH
For Example: Traffic Shaping
max
Data Burst
Web-Page
voice
unused
Data Burst
Web-Page
voice
unused
Data Burst
Web-Page
max
t t
Bandwidth Bandwidth
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The integration of QoS Router and VoIP Gateway makes things
much easier
Traffic Classes are defined at network interfaces
No tagging necessary for point-to-point links
Optimal bandwidth usage and control
LAN LANWAN Link
Q
GW
Q
GW
Classification
Conditioning
Marking
Smart combination of QoS and VoIP
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Products
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New Products: SmartNode 4110 Series
SN4112, SN4114, SN4116, SN4118 2-8 port analog VoIP Gateway
2/4/6/8 2-wire FXS ports
2/4 2-wire FXO ports
10/100bTx Ethernet LAN connection
Console Port: RS-232 RJ45
QoS support TOS, DiffServ
802.1p
PPPoE client, DHCP client
Memory 32MB SDRAM / 4MB Flash
Integrated or external universal power
supplies 100-240 VAC (50/60 Hz)
Desktop Chassis
CE mark, EN 60950
FXS/FXO ToIP Media-Gateway
When to use...
Use the SN4100 series to
integrate analog terminals
phones and PBXsin to VoIP
networks
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SmartNode 4520 Series
SN4112, SN4114, SN4116, SN4118 2-8 port analog VoIP Gateway
2/4/6/8 2-wire FXS ports
2/4 2-wire FXO ports
Dual 10/100bTx Ethernet LAN/WAN
Console Port: RS-232 RJ45
Full QoS support TOS, DiffServ, 802.1p
Traffic Management
Full featured IP-Router
NAT/PAT, PPPoE, DHCP, ACL,
QoS
Memory 32MB SDRAM / 4MB Flash Integrated or external universal power
supply
100-240 VAC (50/60 Hz)
Desktop Chassis
CE mark, EN 60950
Dual Ethernet ToIP Router-Gateway
When to use...
Use the SN4500 Series as an
CPE Access Gateway for analog
voice and data on anybroadband access; Cable, DSL
or WLL
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NEW: SmartNode 4552
10/100 Ethernet WANFor universal connectivity toDSL, Cable, WLL or Fiberuplinks
4 port Ethernet Switch10/100bTX For SOHO LANconnectivity. Connect PC,Printer, WiFi Bridge without
extra hub or switch
2 ISDN BRI/So portsInsert the Gateway betweenyour installed ISDN Terminalsand the ISDN NT for simple
installation and universal callrouting
Life-Line BypassA bypass Relay connects thelocal ISDN port directly to thefallback line in case of power
failures.
The SmartNode 4552 is a Voice over IP CPE for ISDN BRI/So users. It
combines a feature rich Broadband Access Router with advanced Quality of
Service features and high-quality VoIP for ISDN Terminals.
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SmartNode 1200 / 4552 Typical Installation
Example of an Installation with a DSL Access
Splitter DSL Modem
ISDN NT
Copper
Ethernet
10bT
ISDN S/T
Internet Access
VoIP Access
ISDN Fallback
ADSL Annex B
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SmartNode 1400
When to use...
Use the SN1400 for dual ISDN
BRI PBX networking or LAN
gateway. Stack for n x BRI.
Integrated Broadband Access Router
and VoIP Gateway
4-Channel VoIP Gateway
2 ISDN BRI NT/TE configurable
Lifeline: Bypass switch between BRI
Ports
LAN/WAN: 2 x 10bT Ethernet
Console Port: RS-232 RJ45 Full featured 10 Mb/s Broadband Access
Router
NAT/PAT, ACL/FW, PPPoE, DHCP,
QoS
CPU Motorola MPC850 @ 50 MHz
Memory 16MB SDRAM / 4MB Flash
Integrated universal power supply
100-240 VAC (50/60 Hz)
Desktop and Wall-mount Chassis
CE mark, EN 60950
Optional Line Power with PM-BRI-ext
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SmartNode 2300 Interfaces
3 Interface Card Slots PMC Format
PCI (packet) interface
PCM (circuit) interface
ETH 0/0
Ethernet
10baseTWAN or DMZ
Console: RS-232, RJ45
Serial 0/0X.21, V.35
WAN port for
PPP, FR
Router
ETH 0/1
Ethernet
10/100bTXLAN
Data AccessVoice Access
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SmartNode 2400
Up to 120 VoIP channels (4xPRI)
Dual 10/100bT LAN/WAN
Full featured 100Mb/s Wire speed routing
NAT/PAT, ACL/FW, DHCP, PPPoE
CPU Motorola MPC750 @ 333 MHz
Memory 32MB SDRAM (upgradable) /8MB Flash
19 1HU desktop or rack-mount alu-
chassis
Internal power supply: 100-240 VAC
(50/60 Hz)
CE mark, EN 60950
Optional Line Power available with power
module: PM-BRI-extWhen to use...
Use the SN2400 with up to 4 IC-
E1V/T1V and 120 VoIP
channels as CO gateway
Modular Ethernet Access Router and
VoIP Gateway
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4 Interface Card Slots
PMC Format
PCI (packet) interface
PCM (circuit) interface
SmartNode 2400 Interfaces
Console: RS-232, RJ45
ETH 0/0 and 0/1
FastEthernet10/100bTX
LAN or WAN
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SmartNode Interface Card IC-E1V
30-channel VoIP Gateway Card
1 ISDN PRI E1, S2m port
NT or TE configurable
Full Codec and Fax over IP support
G.711, G.726, G.729, G.723
T.38 Fax-Relay
G.711 Fax-Bypass
Echo Cancellation, DTMF Relay
PMC standard form factor
No E1 data on this card
ISDN Primary Rate interface
Card for SmartNode 2000
Series
When to use...
Use the IC-E1V for PBXnetworking in a CPE or as
concentrator port in the CO
gateway.
Use up to 2 in 2300 and 4 in
2400
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SmartNode Interface Card IC-T1V
24-channel VoIP Gateway Card
1 ISDN PRI port
NT or TE configurable
Full Codec and Fax over IP support
G.711, G.726, G.729, G.723
T.38 Fax-Relay
G.711 Fax-Bypass
Echo Cancellation, DTMF Relay
PMC standard form factor
Signaling ISDN NI-2
ISDN Primary Rate interface Card for
SmartNode 2000 Series
When to use...
Use the IC-T1V for PBX
networking in a CPE or asconcentrator port in the CO
gateway.
Use up to 2 in 2300 and 4 in
2400
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SmartNode Interface Card IC-4BRV-8V
8-channel VoIP Gateway Card
4 ISDN BRI, So, S/T ports
configurable NT/TE
Configurable pt-pt / pt-mpt
Full Codec and FoIP support
G.711, G.726, G.729, G.723
T.38 Fax-Relay
G.711 Fax-Bypass
Echo Cancellation, DTMF Relay
PMC standard form factor
Optional Line Power with PM-48V-int
4 Port ISDN Basic Rate interface
Card for SmartNode 2000 Series
When to use...
Use the IC-4BRV-8V ISDN BRI
PBX networking with call routing
and local PSTN breakout.
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SmartNode Interface Card IC-4FXS
4 Port FXS Interface Card for
SmartNode 2000 Series
4-channel VoIP Gateway Card
4 Euro POTS ports
2-wire FXS loopstart
Full Codec and FoIP support
G.711, G.726, G.729, G.723
T.38 Fax-Relay
G.711 Fax-Bypass
Echo Cancellation, DTMF Relay
PMC standard form factor
Requires power module PM-48V-int to beinstalled inside 2300 or 2400 for line andring power
When to use...
Use the IC-4FXS for analog
phones or PBX systems at the
CPE
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SmartNode 4960
It is not modular!
1E1
4E1
VoIP license from 15 to 120 channels
PROMOTION UNTIL END OF OCTOBER:
You pay one and we give two
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VoIP Applications
IP Telephony in the LAN
Enterprise networking with VoIP
Multi-Service Carrier Access
A li ti i th P id M k t
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Applications in the Provider Market
Multi-Service Broadband Access
Bind Customers through Service
Differentiation
Bind Customers with Bundled Services
Cut Operation Costs through Converged
Service Delivery
PSTN
Provider Backbone
Internet
Services
Application
Services
Voice
Services
Customer Networks
SmartNode
Customer Premises
Gateways
WLL
xDSL
CATV Leased Lines
BB Access
PowerLine
A li ti i E t i N t k
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Applications in Enterprise Networks
Global Enterprise Communications
IP Network
Internet
PSTN
Main OfficeBranch Office
Cut WAN costs in office to office communicationLong distance and international toll bypass
Telephony integration of Home Offices
Telephony integration of remote branches
SmartNode SmartNode
PBX Extensions
Ethernet LAN
(1)
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PBX Networking Installation (1)
Equipment SmartNode 2300 with 2 x IC-4BRV
SmartNode is used as Gateway, Router and Switch
100bT LAN
Serial WAN
Site A Site B
TVAPBX PSTN
4 x BRI
4 x BRI
2 x BRI 2 x BRI
100bTX
leased line
X.21X.21
PBX N t ki I t ll ti (2)
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PBX Networking Installation (2)
Customer Benefits
Interoffice Toll Bypass based on legacy PBX installation
Telephony, Internet Access and VPN with a single device
SN4528 SN4114
SN4526
IP/WAN/VPN
WWW8-lines 4-lines
6-lines
PLAR P i t Li / H t li
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PLARPrivate Line / Hot line
Customer Benefits Toll free hotline service over existing Data network Infrastructure
Connectivity on any IP network
SN4114 SN4114
IP/WAN/VPN
WWW
E t i H Offi PBX E t i
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Enterprise Home Office PBX Extension
Main Office
LAN
Gatekeeper
Public Gateway
SN1400
PBX
Router
NAT
Firewall
Internet
PSTN
Home Office
BRI
BRI
Modem
Modem
2 xBRI
5 xBRI
SN1200
Enterprise Opportunity Analysis
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Enterprise Opportunity Analysis
Multiple PBXs at different sites
The sites are already connected to the Internet with sufficient bandwidth (50 to 100k per voice connection), or a
connection can be established easily. (e.g. Leased Lines, DSL, Cable Modem, Laserlink, WiFi etc.)
Remote
Offices withoutPBX
The PBXs are already
networked using QSIG
The PBXs are not networked. Calls
between sites go through the PSTN
SmartNode Solution: toll
bypass over IP. Save on
the monthly telefone bill.
SmartNode Solution:
QSIG networking over
IP. Save the cost of
dedicated leased lines.
SmartNode Solution :
remote sites are served
as IP extensions of the
central PBX.
Check if it is a SmartNode Opportunity?
Home Office
Access tocentral PBX
Condition
Requirement
Environment
Solution