Centralized conferencing
Centralized Signaling
Centralized Mixing (optional)
Centralized Authentication
B2BUA (Discussed in core module)
Conference Components
The Focus
More than one Focus
Creating a Conference
Creating a Conference: Details
Adding a participant
Adding a participant: Details
Alternative INVITE with REFER
Unified Communications
What’s all the fuss?
Unified Confusion
What is Unified Communications?
From UC to UCaaS
Components involved
What should UC do?
21st Century Dial tone
The Unified inbox
Unified aware applications
Find me – Follow me
Device awareness
Unified Comms for Business
Humans and UC
Migrating to UCaaS
UCasS, SIP and the WAN
Part 10:SIP,云托管,LTE,IMS 介绍
Hosted SIP
What Hosted SIP service is
Hosted functions and features
Example Network including ‘failover’
‘Hosted’ clients in action
Why Hosted – Benefits and things to consider
Why on-site PBX – Benefits and things to consider
Auto Provisioning
Auto Provisioning Example
Boot Server
Client Config
Client boot sequence
Client config download
RFC 6011
Benefits of Hosted SIP Service
Benefits of Onsite PBX and SIP trunks
SIP, LTE, the IMS and VoLTE
Network Overview
RAN, eNodeB, EPC, IP Core and 3GPP
4G, LTE, LTE Advanced, WiMAX2
The RAN and EPC
Default Bearer Setup
Introduction to the Servers and Functions in the IMS
CSCF
S-CSCF
P-CSCF
I-CSCF
Home Subscriber Server HSS
Application Server
TAS
PSCF
DNS and ENUM
Device Registration (with SIP)
SIP Registration packet example
SIP in the IMS – Call Flow explained
Introduction to VoLTE and the threat of OTT services
Making VoLTE work
SIP Preconditions in Action
With Codec examples within SDP
SIP Call flow for VoLTE
Quality settings ‘recap’
VoLTE media flow
More on VoLTE
The IMS
Layers architecture
Application
IMS / Session Control
Access and Transport
3GPP
Multiple access devices
RCS and OTT
Who provides IMS solutions?
IPX and Peering for Security, QoS and SLAs
GSMA and IR.92
HD Voice News
SIP and Fax over IP
G.711 Pass-through
T.37 Store and Forward
T.38 Relay
UDPTL
SIP in FoIp
SIP INVITE
INVITE for T.38
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