1. Remote Workers Without the Hassle
Jeff Johnson – Avaya
Dwight Reifsnyder - NACR
Session 446

2. VPN aka The Old Way

3. VPN Companies are moving away from VPN Frequently changing passwords
NACR
4/20/ :12 AM
VPN
Companies are moving away from VPN
Don’t want the extra servers
Connect to and IM without using a VPN so they want to do voice without VPN as well
Frequently changing passwords
Most companies require that the user password expire between 30 and 90 days so the user must change their VPN password on the hard phone as well
Corporate Template

4. VPN vs. QOS Lower voice quality
NACR
4/20/ :12 AM
VPN vs. QOS
Lower voice quality
RTP flows pass through additional servers where bandwidth and latency issues are more likely to appear
VPN overhead increases bandwidth requirements
Corporate Template

5. What is Remote Worker

6. Remote Worker Locations
NACR
4/20/ :12 AM
Remote Worker Locations
Works from home every day
Works from home occasionally
Works from home in an emergency
Works while at a customer
Works while roving
Works at a remote office
Corporate Template

7. Remote Worker Roles Office Worker Roving Worker
NACR
4/20/ :12 AM
Remote Worker Roles
Office Worker
Roving Worker
Agent (not covered in this presentation)
Corporate Template

8. Remote Worker Devices Hard Phone Avaya Communicator
NACR
4/20/ :12 AM
Remote Worker Devices
Hard Phone
Avaya Communicator
Soft Phone on work PC
Soft Phone on personal PC
Smart Phone
Tablet (iPad)
Corporate Template

9. Remote Worker Use Cases

10. Remote Worker at Home Every Day
NACR
4/20/ :12 AM
Remote Worker at Home Every Day
SIP Hard Phone and Smart Phone
Work from home and on a conference call – but Barkley needs his walk now
Pick up call on smart phone VOIP mode
Seamless transition
WiFi to Cellular data
And then back again
Corporate Template

11. Remote Worker at Home Occasionally
NACR
4/20/ :12 AM
Remote Worker at Home Occasionally
Softphone on work laptop with no VPN
and IM connect externally
Sit on back deck, enjoy the view, and still get all of your work done
Corporate Template

12. Remote Worker at Home in an Emergency
NACR
4/20/ :12 AM
Remote Worker at Home in an Emergency
Softphone on personal PC computer
Some days you have to work from home when it is unexpected
Corporate Template

13. Remote Worker While at a Customer
NACR
4/20/ :12 AM
Remote Worker While at a Customer
iPad tablet
At a customer, but they are running late and you have to sit in a conference room and wait, so you make a few calls from your tablet
Corporate Template

14. Remote Worker While Roving
NACR
4/20/ :12 AM
Remote Worker While Roving
Smart phone
While walking the city streets you can send and receive phone calls
Corporate Template

15. Remote Worker at a Remote Office
NACR
4/20/ :12 AM
Remote Worker at a Remote Office
Smart phone as back up device
Instead of a gateway use the smart phone and cellular data as a backup strategy
Corporate Template

16. SIP, AST, and PPM

17. Background – What is SIP
NACR
4/20/ :12 AM
Background – What is SIP
Internet Engineering Task Force (IETF) RFC 3261
SIP supports five facets of multimedia communications
User location
User Availability
User capabilities
Session setup
Session management
Corporate Template

18. What Does SIP Do? Sessions (Audio, Video, IM, etc.) Call Control Media

19. SIP Telephony Features (SIP 19)
Endpoint-based features
Call Hold
Consultation Hold
Music on Hold
Transfer (Attended, Unattended, Instant Messaging)
Conference (3rd party added, 3rd party joins)
Click to Dial
Automatic Redial
Call Park
Server-based features
Call Management (Incoming and Outgoing)
Find Me
Call Forwarding (Unconditional, Busy, No Answer)
Call Pickup
Message Waiting Indication (MWI) – RFC 3842

20. Standard Based vs. Proprietary
How do you add proprietary features to a standard?
Microsoft –
Embrace
Extend
Extinguish

21. Adding Features to SIP AST – Advanced SIP Telephony Full Compliance
Subscribe, Notify, Publish

22. AST Phones Provide More
Personalization through HTTP and XML
Features
Favorites
Customization

23. SIP 19 Registration
4 messages (registration / authentication)

24. AST Phone Registration

25. AST Phone Configuration
PPM via HTTP using XML and SOAP

26. Multi Device Access and Dual Registration

27. Multi Device Access SIP Phones only 1 to 10 simultaneous devices
NACR
4/20/ :12 AM
Multi Device Access
SIP Phones only
1 to 10 simultaneous devices
2 or 3 is most common
Uses registration capacity in Session Manager
Corporate Template

28. Multi Device Access Simultaneous device threshold handling
NACR
4/20/ :12 AM
Multi Device Access
Simultaneous device threshold handling
Drop oldest connection (recommended)
Not allow new connections until other connections have dropped
Corporate Template

29. Dual Registration H.323 with SIP Phones 1 H.323 device
NACR
4/20/ :12 AM
Dual Registration
H.323 with SIP Phones
1 H.323 device
Desk phone matches other hard phones for firmware management
1 to 10 SIP devices
For additional devices
Corporate Template

30. Split DNS Use FQDN on the phone application
NACR
4/20/ :12 AM
Split DNS
Use FQDN on the phone application
Internally resolves to Session Manager
Externally resolves to Session Border Controller
Corporate Template

31. Remote Worker Architecture

32. TCP What You Don’t Need Plain Old Telephone Service
Dedicated voice circuit ( “SIP trunk”)
SIP Trunking carrier
TCP
Plain Old Telephone Service

33. Sample Production Architecture
Avaya SBCE w/ RW Licensing
Internet Connectivity
Public IP Address (or two for HTTPS)
SIP Clients
Programming and Configuration
3rd Party Security Certificates

34. SBCE: Remote Worker Overview
Firewall
Firewall
Enterprise
DMZ
Internet
Remote Workers
Avaya SBCE
Remote Worker are external to the Enterprise firewall
Avaya Session Border Controller for Enterprise
Authenticate SIP-based users/clients to the enterprise
Securely proxy registrations and client device provisioning
Securely manage communications without requiring a VPN

35. Components, Signaling, Media
SSignaling Path
SMedia Path
SIP Endpoints
3rd Party SIP
(Call Manager, Fax, etc)
SBC – Trunking
Experience Portal
Messaging
Communication Manager
H.323 Endpoints
SIP Endpoints
3rd Party SIP
(Call Manager, Fax, etc)
SBC – Trunking
Experience Portal
Messaging
Communication Manager
H.323 Endpoints
Session Manager
Carrier
Carrier
Internet
SBCE – RW

36. Budget POC Virtual SBCE w/ 30 day trial license Internet Connectivity
Public IP Address (or two for HTTPS)
SIP Clients
Programming and Configuration
Avaya Demo Security Certificates

37. Please complete
your evaluations
Session 446