SIP trunk connectivity items ‘from the field’
Part 8:SIP 和 Fax over IP
Faxing Basics
Faxing background
T.30 Fax signaling
Associated tones and protocols
The ITU and TIA standards
Fax over IP
Fax over IP benefits
From the old to the new
Intro to FoIP
FoIP and SIP trunks
Protocol conversions
Fax Protocols
G.711 Pass-through
T.37 Store and Forward
T.38 Relay
Where does SIP fit in?
UDPTL
Protocol options for the future
FoIP in action
SIP in FoIP – Call Flow
SIP INVITE
INVITE for T.38
The INVITE SDP body
Wireshark FoIP example
SIP T.38 Call flows – IETF draft document
Bandwidth
T.38 and G.711 network traffic
Troubleshooting
The basics
More complex issues to watch out for
Ongoing Efforts
RFC 6913 and sip.fax tag
Use DTMF events instead?
Part 9:SIP和UC 融合通信介绍
Communication Breakdown
Playing Voicemail tag
Can’t find people
Available but not Available..!
More Examples of communication problems
IM Clients
IM Client Examples and Features
More in IM Clients
The Background Stuff
The IMPP working group
IMPP and CPP
More IMPP work
SIMPLE
How it all works
Presentity
A Basic SIP subscription
Multiple Presence States
Presence and P2P
A Presence Network
Getting inside the SIP packets
Presentity and more!
A Basic SIP Subscription
Multiple Presence States
Presence and P2P
A Presence Network
Get inside the SIP packets
The Packet Structure
PIDF Message Body
XML
Tuples
Example Presence doc with Tuples (using a Mobile Phone)
The METHODS in Action
PUBLISH
SUBSCRIBE
NOTIFY
MESSAGE
is-composing
Rich Presence
2 Places at the same time
‘Presence’ Federations
What is Federation?
Multiple Presence sources
Super-Aggregation
Inter-Domain Federation
Conferencing
What SIP does in Conferencing
INITIATE a conference
JOIN a conference
LEAVE / EXIT a conference
INVITE other participants
REFER conference server to invite or others to join
EXPEL participants
CONFIGURE the media stream
CONTROL a conference
Why SIP?
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