Lync & Juniper Making Lync easier

Chris Boos

Unified communications platform Enterprise-ready

What is Lync 2013

Unify your communications

Skype AOL Yahoo

Remote Users

DMZ

Federated Businesses Exchange UM

Voicemail

UC endpoints

ACS Server/OneBox

PSTN PBX

(SIP-PSTN GW)

Mediation Server

PRI

QOE Monitoring Archiving

CDR

Active Directory

Persistent Chat

Office Web Apps

Front-End Server (IM, Presence)

Inbound Routing

Outbound Routing

Backend SQL server

Voice Mail Routing

Edge Server

Data Audio/Video SIP

Reverse Proxy

ACS/OneBox 365 architecture

“Complex design” “Simplified design”

Public IM Clouds

Unify your communications

Exchange Server & Office365

Voicemail

UC endpoints

Enterprise Active

Directory

ACS Express/Onebox

PSTN

“Implementation Simplified”

What is ACS Express/OneBox 365?

AOL Yahoo

Remote Users

Federated Businesses

Public IM Clouds

Unify your communications

Externalfirewall

Internalfirewall

ENTERPRISE VOICE

Connectivity to: • IP-PSTN

gateway • IP/PBX • Direct SIP • SIP trunk

A/V Edge – ICE: STUN/TCP:443, STUN/UDP:3478

Access Edge - SIP/TLS:443

A/V Edge – SRTP:443,3478,[TCP:50,000-59,999]

SRTP consists of two unidirectional streams. RTCP traffic piggy backs on the SRTP stream. Media codec varies per workload:- RTAudio- G.711- Siren- G.722

TCP:443 must be open inbound.

UDP:3478 must be open both inbound and outbound.

Mediation Pool(optional)

STU

N/T

CP:4

43, S

TUN

/UD

P:34

78

SIP/TCP:5060,5061

Exchange UM

Edge Pool

Directors

SIP/MTLS:5062

SIP/MTLS:5061

SRTP

/RTC

P:30

,000

-39,

999

Enterprise Pool

Branch Appliance

SIP/MTLS:5062

RTP/SRTP traffic

SIP traffic

Call Admission Control (CAC) traffic

WAN Connection

TCP port range, 50,000-59,999, only needs to be open outbound.TCP/UDP port range, 50,000-59,999, needs to be open inbound and outbound to the Internet for federation with partners running Office Communications Server 2007.

ICE traffic

TURN

/TCP

:448

Media codec varies per workload:- RTAudio- G.711

SRTP

/RTC

P:60

,000

-64,

000

Media bypass: audio routed directly to gateway

bypassing Mediation Server.

TURN/TCP:443, UDP:3478

TURN/TCP:448

SRTP

/RTC

P:49

,152

-57,

500

Enterprise Voice applications

SRTP

/RTC

P:30

,000

-39,

999

SIP/MTLS

SIP/TLS:5061,5070

SIP/TLS:5061

MRAS traffic.

SRTP, ICE: STUN/TCP:443, UDP:3478

HTTPS:444

SRTP

, ICE

: STU

N/T

CP:4

43, U

DP:

3478

Lync client automatically registers with the pool if

the Branch Appliance becomes unavailable

SIP/MTLS:5061 SIP/MTLS:5061

SIP/

TLS:

5061

SIP/TLS:5061

If no Edge Server is defined in the topology, callee checks

the Front End Server’s Bandwidth Policy Service.

If no Edge Server is defined in the topology, callee checks

the Front End Server’s Bandwidth Policy Service.

For federation, SBA connects directly with Director. If no Director is available, federation traffic goes directly to

Edge Server

SRTP,ICE: STUN/TCP:443

MRAS traffic.

Port number to service traffic assignment:5064 - Telephony Conferencing Service5067 – Mediation Server Service5071 - Response Group Service5072 - Conferencing Attendant Service5073 - Conferencing Announcement Service5075 - Call Park Service

Unify your communications

Network Quality Considerations

Delay / Latency

Packet Loss

Jitter

Total two way delay below 150ms

For Lync limit to < 10 % loss traditional VoIP < 1 % loss

Limit jitter to < 30ms

Guaranteeing good (Voice) Quality:

Unify your communications

Juniper

How do we do this?