PSTN Numbering Plan Class of Service No premium Local, National +31-20-500 1000 to +31-20-500 1999 Existing PBX No premium Local, National International Existing Phone Handsets 4 digit Internal extensions 9 for an outside.
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Transcript PSTN Numbering Plan Class of Service No premium Local, National +31-20-500 1000 to +31-20-500 1999 Existing PBX No premium Local, National International Existing Phone Handsets 4 digit Internal extensions 9 for an outside.
PSTN
Numbering Plan
Class of Service
No premium
Local, National
+31-20-500 1000 to
+31-20-500 1999
Existing PBX
No premium
Local, National
International
Existing Phone Handsets
4 digit Internal extensions
9 for an outside line
3 digits + extension for other locations
…..
Dialing Habits
PSTN
Existing
PBX
Lync 2013
PSTN
Existing
PBX
Lync 2013
Lync
Pool
Lync
Mediation Server
SIP
SIP
Qualified
Gateway
PSTN
Note
Topologies may vary depending on
Service Provider. For example SBC’s
are frequently deployed on
Customer Site
Lync
Pool
Lync
Mediation Server
SIP
VPN
Router
SIP
Enterprise Network
VPN
Router
SBC
Session Border Controller
VPN Tunnel
Service Provider Network
SIP
SoftSwitch -orPSTN Gateway
PSTN
http://technet.microsoft.com/ucoip
Lync
Pool
Lync
Mediation Server
SIP
Lync
Pool
PSTN
SIP
Lync
Mediation Server
SIP
Qualified
IP-PBX
SIP
Qualified
Gateway
TDM PBX
PSTN
Inbound
Trunk
Qualified
IP-PBX
PSTN
Usage
Lync
Pool
Lync
Mediation Server
Outbound
Trunk
Route
Lync
Mediation Server
Trunk
Trunk
Qualified
Gateway
PSTN
MEDIA
Inbound
Trunk
PBX User
Qualified
IP-PBX
PSTN
Usage
Lync
Pool
Lync
Mediation Server
Outbound
Trunk
Route
Lync
Mediation Server
Trunk
Qualified
IP-PBX
Trunk
MEDIA
PBX User
Data Center
PSTN
Lync Pool
Mediation Server
Gateway
WAN
Branch Office
Survivable
Branch
Appliance
Location
Policies
Location
Information
Server (LIS)
• Can be “location aware” or static assignment
• Defines emergency numbers
• Defines emergency call routing to basic gateway, ELIN gateway, or E9-1-1 service
provider
• Defines IM notification destination
• Defines security desk phone number for conference
• Takes BSSID, MAC, Subnet, Switch/Port and returns validated location.
• Validates addresses against the Master Street Address Guide (MSAG)
• Validated LIS address returned is passed to
E9-1-1 provider via PIDF-LO
17
Network
conditions
Acceptable
quality
Optimal
quality
Interarrival
packet jitter
(avg)
≤ 5 ms
≤ 2 ms
Interarrival
packet jitter
(max)
≤ 40 ms
≤ 20 ms
Packet loss rate
(avg)
≤ 1%
≤ 0.5%
Network latency
RTT
≤ 200ms
≤ 120ms
22
Discovery Session
Usage Modelling
Traffic Simulation
Recommendations
Understand what network
environment exists
Model proposed bandwidth
using user profiles, and usage
patterns
Using a UC Traffic simulator
apply real traffic to
production network and
monitor factors that affect
the quality of UC traffic,
Delay, Jitter, and Packet Loss
Analyze factors affecting
quality, and produce a full
report with
recommendations
Network
Impact
User
Experience
• How does real-time communication
affect your network?
• How does your network impact real-time
communication?
• Network as fundamental to success
• “Perfect” Lync deployment can fail
because of network
• “The technology is only as good as the
last call”
Proactive
Reactive
• What are your plans on Voice & Video?
• Is your network ready for RTC\UC?
• Have you considered RTC\UC when
planning and building your network?
• What are your expectations on usage?
• Are you having call quality issues?
Validates an
Enterprise’s Readiness
for UC
Quantitative
assessment of current
Infrastructure metrics
that impact UC
Reduces deployment
risk
Highlights areas that
might impact UC
readiness
Protects customer’s
investment in UC
Promotes the best
possible end user
experience
SIP
WAN
G.711
Lync Server 2013
PSTN
Data Center Site
Branch Site
Devices enable communication
and collaboration
Which drives value to users and
technology adoption
Leading to successful
deployments and
implementations
Single Point of Contact
Certified Partners
One Call
Any Lync issue
Quality Experience
Microsoft Communications
Gold Competency
Stringent Requirements
Program Compliant
Support Beyond Software
Hardware
Devices
Network
Flexible and Customizable
Solution Support
Backed By Microsoft
Partner Training
Escalation Engineers
Proactive Services
Initial Planning
Align to project execution
Identify support requirements
Support Solution Development
Support process definition
Vendor selection
Support Execution
Support Contracts
Remediation Activities
Microsoft Lync Certified Partners
Global
North America
Business
Services
South America
Europe
Asia
E911 Service Provider
Lync Infrastructure
3
1
3
Mediation
Server
SIP
Trunk
SBC
Call-Center
2
3
Internet
2
Lync
LIS DB
MSAG validation DB
3-4
1
1
2
5
3
1
1
Enterprise User
2
Bob
172.24.33.132
4
1
5
PSTN
1- Client sends subnet information to registrar
2- Registrar returns LIS URI (and E911
Corporate Security Desk
Enablement data) during Registration. This is
1-Client dials 911 – includes
because Subnet 172.24.33.132 is enabled for
PIDF-LO1-Provisioning
in SIP INVITE
E911
2-IM notification
of emergency
Populate
with network
3- a)
Client
sendsLIS
subnet
to LIS – locations by
call, party,
and
location
sent
to
element
and
location
records
subnet.
Redmond PSAP
security group
(optional)
trunk
connected to match
SP
4- b)
LISSIP
does
subnet/location
and returns
3-E911 call
routed
SIP
trunk
Enable over
sites
or users
thec)location
in PIDF-LO
format
4-Routing
Provider connects
2- Addresses
are sent to
for validation
appropriate
PSAPback valid/invalid addresses
3-Report
Operator
5-Voice path connected to
security group (optional)
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