Mapping to Networking discussion HI HOW ARE YOU DOING? I NEED SHORT PARAGRAPH ABOUT THIS SLIDE INCLUDE THIS INFORMATION IN WORD DOCUMENT IT IS FOR P

Mapping to Networking discussion HI

HOW ARE YOU DOING?

I NEED SHORT PARAGRAPH ABOUT THIS SLIDE INCLUDE THIS INFORMATION IN WORD DOCUMENT

IT IS FOR PRESENTATION LENGTH 2 MIN

THANK YOU •
slide and in-class presentation should include everything in the rubric.
Rubric
Presentation 1 Rubric (1)
Presentation 1 Rubric (1)
Criteria
Ratings
Pts
Project Description
This should include an overview and background of the
selected technology.
2.0 pts
Mapping to Networking
How is this a networking project?
2.5 pts
References, Composure & Group Separation of Duties
References, Groups Presentation Composure, and Individual
Contributions.
2.0 pts
Slide Content & Formatting
Presentation Slide Content & Format
1.0 pts
Future Work
What is the group’s future approach?
2.5 pts
Total Points: 10.0
Voice connections using Facebook Messenger
Applications Layer
•
•
•
Soft phone/Call Manager/Human Speech
H.323(81P/MGCP)
SIP port 5060 to transport layer
Transport Layer
•
RTP/UDP (media); TCP/UDP (signal)
Network Layer
•
IPv6
Application Layer
Sender
Soft phone – click on call icon in app to
initiate call
Call Manager
H.323/SIP session initiation protocol
CALL SIGNALING
SIP – it is a rule book on how to locate other
party, which codec to use, how to construct
and send IP signaling packets, how to manage
communication
SIP – invitation signal sent with all the rules
of engagement. Similar to TCP three-way
handshake.
Received to initiate voice communication.
Human Speech recorded by microphone on
mobile device
Port # (RTP Ports 5004-5005, SIP 5060) to
transport layer
Transport Layer
Sender
TCP/UDP (signal segments) to initiate
connection
CARRYING CALL
RTP/UDP (media segments) to send voice
transmission
Receiver
Soft phone – click on icon in app to
acknowledge call
Call Manager
H.323/SIP
SIP – invitation signal received with all the
rules of engagement by playing phones
ringing sound. It is acknowledged when the
receiver picks the call
Human Speech played back to receiver
Port # (RTP Ports 5004-5005, SIP 5060) from
transport layer
Receiver
TCP/UDP (signal) to receive connection
RTP/UDP (media) to receive voice
transmission
breaks voice data messages into segments and
sends to network layer
reassembles segments into voice data
messages sends to application layer.
Network Layer
Sender
Encapsulates segments into data gram
IPv6
Signaling datagram
Media datagram (voice codecs include G.711
and G.729)
Receiver
Delivers segments to transport layer
IPv6
Signaling datagram
Media datagram
G.711 – uncompressed high quality, high
bandwidth
G.729 – compressed, uses less bandwidth
Coder – Voice data encoded into binary
numbers
Converts audio signal to compressed digital
form for transmission
Decoder – Binary numbers decoded
Converts back from digital to uncompressed
audio signal
Facebook Messenger App
&
the Network
How is this a networking project?
Facebook calling feature works by:
Utilizing networks that support both data and
voice traffic
Voice multimedia is delivered over an IP
packet switched network
Connected vie Wi-Fi or LAN (RJ-45) cable

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