Voice in packet Cisco’s goal: Unified Communications Why an organization would use VOIP?

1. CCNA Voice 640-461
Part 1- Introduction
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2. Cisco Certifications
Cisco Certifications Level:
Entry
Associate
Professional
Expert
Architect

3. Cisco Certifications
Certifications
Entry
Expert
• CCENT
• CCDE Design
• CCT
• CCIE Data Center
• CCIE Routing & Switching
Associate
• CCIE Security
• CCDA
• CCIE Service Provider
• CCNA
• CCIE SP Operations
• CCNA Security
• CCIE Storage Networking
• CCNA Service Provider
• CCIE Voice
• CCNA SP Operations
• CCIE Wireless
• CCNA Voice
• CCNA Wireless
Architect
• Cisco Certified Architect
Professional
• CCDP
Specialist
• CCNP
• Collaboration
• CCNP Security
• Data Center
• CCNP Service Provider
• Operating System Software
• CCNP SP Operations
• Security
• CCNP Voice
• Video
• CCNP Wireless

4. Cisco Certifications

5. Voice in packet
•The changing world of today
•Why businesses should use VOIP
•How businesses move to VOIP

6. Voice in packet
The world at the end of 20th century
Voice Video
Data
•Three separate networks: Voice, Video, and Data
•Difficult to integrate applications
•Each area is its own world: Infrastructure, Staff,..

7. Voice in packet
Cisco’s goal: Unified Communications
Voice Data
Video
•Bandwidth capabilities have been increasing for years
•Service providers see the opportunity
•Opportunities now come to business and homes

8. Voice in packet
Why an organization would use VOIP?
The business benefits of VoIP include the following:
Reduced cost of communicating: Instead of relying on expensive tie lines or toll
charges to communicate between offices, VoIP allows you to forward calls over WAN
connections.
Reduced cost of cabling: VoIP deployments typically cut cabling costs in half by
running a single Ethernet connection instead of both voice and data cables.
Seamless voice networks: Because data networks connect offices, mobile
workers, and telecommuters, VoIP naturally inherits this property. The voice traffic is
crossing “your network” rather than exiting to the PSTN. This also provides
centralized control of all voice devices attached to the network and a consistent dial-
plan.
Unified e-mail, voicemail, fax: All messaging can be sent to a user’s e-mail
inbox. This allows users to get all messages in one place and easily reply, forward, or
archive messages.
Increased productivity: VoIP extensions can forward to ring multiple devices
before forwarding to voicemail. This eliminates the “phone tag” game.

9. Voice in packet
Take your phone with you: Cost estimates for moves, adds, and changes (MAC)
to a traditional PBX system range from $55 to $295 per MAC. With VoIP phone
systems, this cost is virtually eliminated. In addition, IP phones are becoming
increasingly plug-and-play within the local offices, allowing moves with little to no
reconfiguration of the voice network. In addition, when combined with a VPN
configuration, users can take IP phones home with them and retain their work
extension.
IP SoftPhones: SoftPhones represent an ideal example of the possibilities when
combining voice and data networks. Users can now plug a headset into their laptop
or desktop and allow it to act as their phone. SoftPhones are becoming increasingly
more integrated with other applications such as e-mail contact lists, instant
messenger, and video telephony.
Feature-rich communications: Because voice, data, and video networks have
combined, users can initiate phone calls that communicate with or invoke other
applications from the voice or data network to add additional benefits to a VoIP call.
Open, compatible standards: In the same way that you can network Apple, Dell,
and IBM PCs together, you can now connect devices from different telephony
vendors together

10. Voice in packet
The old to the new
Most companies have been running on PBX systems for years and moving
their entire network to VOIP is a shock.
They use two phase approach: Voice and WAN
Interface Card
Phase 1:

11. Voice in packet
The old to the new
Phase 1:
-Keep all existing equipment just buy new
router
-It is relatively cheap
-Choose one of two paths: IP WAN, PSTN
Phase 2:
It is possible as a company is moving to have a hybrid.

12. References
Cioara, J., Valentine, M. (2012). CCNA Voice 640-461 Official Cert
Guide, Cisco Press, USA
Wallace, K. (2005). Voice over IP First-Step, Cisco Press, USA
Wallace, K. (2006). Authorized Self-Study Guide Cisco Voice over IP
(CVoice), Cisco Press, USA