Virtual Data Systems, Inc. Value Proposition of IP Telephony Voice over IP Technologies
Dec 23, 2015
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Voice over IP Technologies
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Voice Over IP Overview
VoIP is an emerging technology that allows voice calls to be made over an IP network. Vendors have been pushing VoIP for a few years, but many potential customers have been waiting for “better” call quality, or believe that nothing is free.
If applied and configured correctly, a VoIP solution can provide excellent call quality, and tremendous financial savings to both large and small organizations.
The Key to implementing a successful VoIP solution is to Identify opportunities that fit.
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Do Companies Want VoIP?
76% Will!76% Will!
Unsure
4%Not at all
likely
4%Not very
likely
16%
Likely
28%
Very likely
32%
Extremely
likely
16%
Source: Network World 500/ Progressive Strategies 08/11/1998, p. 36
Network World asked 500 readers to assess whether they would consider using voice over IP:
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Key Business Drivers for LAN-Based Telephony and VoIP
81%81%
59%59%
38%38%
26%26%
0 50 100
Save MoneySave Money
Better Utilization of BandwidthBetter Utilization of Bandwidth
Support MultimediaSupport Multimedia
Improve Network ManagementImprove Network Management
Source: Survey by Yankee Group Survey, 10/98 Source: Survey by Yankee Group Survey, 10/98
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Identifying VoIP Solutions
Customer Specific Questions -• Does the customer make long distance calls between offices ?• Does the customer have a large, at-home workforce?• Has the customer already made an existing investment in WAN infrastructure which could be leveraged for a VoIP solution?• Is the customer looking to set-up a call center?• Is the customer looking to scale-down communications support costs?
Project Specific Questions – • Is there enough bandwidth? (if no, how much more is needed?)• Does customer already have required network infrastructure?• What is the ROI on the VoIP project?
VoIP is a simple concept to sell, but answer these questions before hand to determine if the application fits
Virtual Data Systems, Inc. Value Proposition of IP Telephony
How does VoIP Work?
1. Compression – voice is compressed typically with one of the following codecs, G7.11 64k, G7.29AB 8k, G723.1 6.3k
These steps happen in reverse at the other end
2. Encapsulation – the digitized voice is wrapped in an IP packet
3. Routing – the voice packet is routed thru the network to its final destination
The 1-2-3s of VoIP
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Types of VoIP Technologies
1. IP LAN Telephony or IP PBXs
• By design, an IP based telephone PBX system • Telephones are IP handsets and codecs in one • PBX chassis performs call routing and traditional telephony functions• Voce travels over Ethernet computer LAN• TOP Manufacturers include: Cisco and 3COM / NBX
2. VoIP Gateways • Devices which allow the bridging of legacy PBX systems and/or analog
telephones over IP networks.• TOP Manufacturers include: Cisco, 3COM, and Ericsson
Virtual Data Systems, Inc. Value Proposition of IP Telephony
IP LAN Telephony or IP PBXs
NBX Chassis
NBX Business TelephoneFull-featured Ethernet-based telephone
NBX Call Processor (NCP) card
NBX Analog or Digital Line Card
NBX 10BASE-T Hub CardNBX Open Platform allows for theuse of industry-standard network hubs & switches to connect additionaltelephone sets
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Can be Switched 10 Mbps
IP PBX Architecture
*NBX 100 is Independent of the Network File Server
*NBX 100 Systemstays up even when
the file server goes down.
NetworkFile Server
Hub or switch, 10/100
CAT-5 Ethernet
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Sample Application
PSTN
Router
Layer 2Switch
PBXMain Office
SO / HO
HUB
IP Router or ISDN, DSL LAN Modem
IP Network
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Sample Application
IP Network
Small Office 1
IP RouterHub or Switch
NBX 100
Small Office 2
IP Router
NBX 100
PSTN
PSTNHub or Switch
Virtual Data Systems, Inc. Value Proposition of IP Telephony
VoIP Gateways
Allows the bridging of IP and circuit switched telephony devices
Primary Uses of VoIP Gateways
• Toll By-Pass, #1• Integration of heterogeneous PBX environments over WAN • IP Gateway for Mobility• Telecommuters, SOHO
TOP Manufacturer VoIP Options
• Cisco, VoIP Card for 2600 series (and up) routers• Manufacturer Specific Gateways, (Nortel, Lucent, Siemens, etc.)• Ericsson WebSwitch (WebSwitch 100 and 2000)
Ericsson offers most overall flexibility and customer value
Virtual Data Systems, Inc. Value Proposition of IP Telephony
How VoIP Works
LAN BLAN A
GW router GWrouter
PBX A PBX B
EXT 101 EXT 201IP Network
EXT 101 places a call to ext 201. PBX A sees ext 201 as the gateway and sends the call out to the GW. The GW compresses the voice and encapsulates it in an IP packet and sends it to the destination of the other GW. The GW on LAN B must strip out the IP, decompress the voice and route it to PBX B.
Virtual Data Systems, Inc. Value Proposition of IP Telephony
VoIP Application
PBX
Digital Handsets
PBX
Branch Office #2, TX
Digital Handsets
Branch Office #1, FL
Digital Handsets
PBX
Main Office, CA
FR Network
Frame Relay Connection
Ericsson Webswitch 2000
• Allows Toll By-Pass via FR Network• Local dial tone at remote office• 3 digit extension dialing between offices
Virtual Data Systems, Inc. Value Proposition of IP Telephony
VoIP Application
Analog Phone
Analog FAXWS 100
Analog Phone
Analog FAXWS 100
Digital Handsets
PBX
Main Office, CA
T1 Internet connection
PC
Telecommuter
PC
Telecommuter
DSLCableconnection
InternetWebswitch 2000
• Toll By-Pass via Internet• Analog phones appear as extensions on WS200
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Issues Associated with proper VoIP Implementation
• Assess current user requirements and future needs (video ?)
• Assess corporate LAN / WAN infrastructure and determine required upgrades or modifications, if required
• Modify security systems for VoIP (firewalls)
• Implement correct Quality of Service and data prioritization (latency problems)
• Create and maintain master IP addressing to EXT schema
• Proactive monitoring of available network bandwidth and utilization rates
Virtual Data Systems, Inc. Value Proposition of IP Telephony
Converged Networking from Virtual Data Systems
VDS has over 5 years of experience designing and implementing converged networks supporting voice, video and data services
Only VDS can provide proven best of breed technologies: • Cisco Premier Partner• 3COM Voice Solutions Partner• Ericsson-Webcom Solutions Partner• Polycom Solutions Provider (IP video systems)
VDS can provide turnkey solutions including: system design, specification, equipment supply, installation, configuration and user support services
Local and available to help YOU make the SALE!
Virtual Data Systems, Inc. Value Proposition of IP Telephony
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