1. Live Unified Communication Beyond the Borders
UC Across the Borders
Live Unified Communication Beyond the Borders
Prepared for: INTERNET TELEPHONY Conference
Ingate’s SIP Trunk-UC Summit
Miami, Februari 2011
By: Karl Erik Ståhl
President Intertex Data AB
Chairman Ingate Systems AB
© 2010 Intertex Data AB 1

2. by in the US Intertex & Ingate Same parent company
Intertex: SMB, SOHO and home SIP Firewalls and E-SBCs
For volume deployment
Ingate: Enterprise and SMB SIP Firewalls and E-SBCs
SIParators® for enterprises and projects
Cooperation in management and development
Co-developed SIP code
Ingate represents Intertex in the US by
in the US

3. SIP Trunking – Now SIP Trunk-UC Summit
UC, Unified Communication – Many definitions…
This session is about the Live (Real Time) Person-to-Person part (other parts may be Web and based)
Telephony – VoIP, SIP Trunking
Video, HD voice
Presence
IM – Instant Messaging
Today’s SIP Trunking makes VoIP global, but it is still mostly POTS (Plain Old Telephony Service)
But for the better; Video, better Voice, Presence and IM, we mostly see local islands of UC

4. We have Seen Much POTSoIP
Gateway
Toll
Bypass
Europe US
VPN
Tunnel
IP PBX
IP PBX
Gateway
PBX
Are we stuck
with old POTS
telephony
over new wires?
PSTN
Gateway
Voice over
Broadband
Soft
Switch
Very seldom VoIP connectivity between the VoIP IP clouds!
Most broadband VoIP providers still run calls between each other over the PSTN!

5. we are building UC islands inside our firewalls
IP Cloud
And in the enterprise
we are building UC islands inside our firewalls
Firewall
PSTN
The old PSTN has brought the islands together

6. brings the VoIP together
PSTN
SIP Trunk Provider 1
SIP Trunk Provider 2
IP Cloud
Firewall
PSTN
SIP TRUNKING
brings the VoIP together
For VIDEO, IM, PRECENSE etc., there is no “PSTN” to connect with.
Do it IP style! – Simply use SIP!

7. UC Shall Not Reside in LAN Islands Only!
Global IP Connectivity
VoIP++
All SIP Services
PSTN-style structures are good for talking to the PSTN world, not for UC. Using SIP in its IP-style connects globally and has lots of applications. It’s not magic – It’s just the SIP standard!

8. Let’s put it to use! Demos will follow
Back to Basics
The IP networks (Internet and other) are connected
There is a standard, SIP
SIP (incl. SIMPLE) is general, for Live Person-to-Person communication, POTS replication is just one usage
But SIP communication must reach the users on the protected LANs behind NAT/Firewalls!
Some E-SBCs can provide general SIP traversal of NATs and Firewalls
And some are general session routing SIP Proxies
Let’s put it to use! Demos will follow

9. Our E-SBCs are for More than SIP Trunking!
IMS
Internet
SIP
No battery draining of WiFi mobile phones, otherwise caused by keep-alive packets* inhibiting sleep mode.
* Work-around methods for SIP NAT-traversal like STUN, TURN, ICE and Far End NAT Traversal use frequent keep-alive packets to keep holes in the NAT/Firewall open.
Problems solved where they occur
Wired or wireless SIP clients (phones, soft clients, PDAs)
No special requirements on the SIP Client – Just standard SIP
Intertex and Ingate have SIP Proxy based SIP aware Firewall/NATs
General, can handle complex call scenarios and all SIP services
Routes calls – as SIP proxies shall do (not just passing all to an ITSP)
Additional functionality available (SIP server, PBX functionality etc.) 9

10. And it is More than Multimedia!
Mobility
We certainly want our home workers connected to the company PBX
And the same goes for our road warriors
All should have all PBX services
Multimedia
Adding Video, IM and Presence
And HD Voice
And Telepresence
Numbers
Sure we need the old telephone numbers
But also give us usable SIP addresses – Just like addresses!

11. Internet Japan US, Miami Sweden
Internet
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 2
US, Miami
INTERTEX LAN
intertex.se
Sweden
THIS LAN, SIP Trunk-UC Summit
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 1 3G
INGATE LAN
ingate.com
CELL
PSTN
Let’s see what we can show on an Internet connection here and now at IT EXPO in Miami!

12. Beyond POTS: Mobility, Multimedia and Numbers
We certainly want our home workers connected to the company PBX
And the same goes for our road warriors
at the hotel
at public WiFi
All should have all PBX services
Reached by extension number or DID
Place PSTN calls (displaying correct CallerID)
Voice mail, conferencing etc.
Presence, IM, video if supported by the PBX

13. Internet Japan US, Miami Sweden PSTN PSTN SIP/PSTN Gateway SIP/PSTN
Internet
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 2
US, Miami
INTERTEX LAN
intertex.se
Sweden
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 1 3G
INGATE LAN
ingate.com
CELL
PSTN
THIS LAN, SIP Trunk-UC Summit
PBX Mobility with SIP Trunking (demo)
PSTN  my direct number
steeg  29 = my extension number
calle  23 (steeg)
PSTN  Intertex main  ext 29, 25s leave Voice Mail
calle  mobile in the hall
Voice Mail comes via

14. Beyond POTS: Mobility, Multimedia and Numbers
Presence is really useful
So is IM (Instant Messaging)
Laptops have cameras and good screens, so why not video?
Video conferencing does not have to be complex with huge cost and for internal use only.
And voice can actually be better than 3kHz AM-radio quality!
Who said MOS score 5 was perfect? Hardly HiFi?

15. Internet Japan US, Miami Sweden PSTN PSTN SIP/PSTN Gateway SIP/PSTN
Internet
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 2
US, Miami
INTERTEX LAN
intertex.se
Sweden
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 1 3G
INGATE LAN
ingate.com
CELL
PSTN
THIS LAN, SIP Trunk-UC Summit
…and other SIP based applications (demo)
Presence, Instant Messaging ((is kamill or other on-line?)
Not restricted to own domain intertex.se, here also ingate.com
 (listen + video)
Wide band codec: “S” is not “F” anymore!
Video
Media goes the shortest way (just trough the local switch here)
and we saw global SIP calls – not restricted to own domain

16. Beyond POTS: Mobility, Multimedia and Numbers
Telephone numbers WILL be around for a long time
We are simply too used to E.164 numbers and everyone has one
But they are really not particularly user friendly…
Would have been a success if we had used our fax numbers?
Operators often provide SIP names like
Not user friendly at all. For internal use only.
We want a real SIP address:
Just like our addresses
Let us have both: =
Service providers can do it
Here the Intertex and Ingate products do it!

17. Internet Japan US, Miami Sweden PSTN PSTN SIP/PSTN Gateway SIP/PSTN
Internet
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 2
US, Miami
INTERTEX LAN
intertex.se
Sweden
PSTN
SIP/PSTN
Gateway
SIP Trunk Provider 1 3G
INGATE LAN
ingate.com
CELL
PSTN
THIS LAN, SIP Trunk-UC Summit
Telephone numbers and SIP addresses (demo)
Can we do global SIP calls over the SIP trunk? It is up to the operators!
E.g. Telia routes real SIP calls and don’t steal the media
(even though they are on a managed VoIP cloud)
 calle using
(IP  PSTN > PSTN  IP  only POTS voice)
sophie  calle using
(ENUM: IP  IP  quick, wide band codec, video)

18. ENUM – Using Phone Numbers but Staying on IP
2) ENUM lookup: Is there a SIP address for ?
Ask DNS: e164.arpa
Yeah try
3) Place the call directly to: IP IP
1) Dial Phone Number
PSTN
Not only for PSTN by-pass, but also for better voice and multimedia
Clients, Intertexes/Ingates, or service providers can use ENUM

19. Telcos More Than Bandwidth Providers?
Telco Opportunity
Video Calling
High Quality, Chargeable, Global Video Calling
Ready to go, using SIP Trunking Infrastructure
High Quality (Telepresence) Video Calling
Routed and Billed (CDRs produced) by the E-SBC
Simple settlement free IP Peering between Telcos

20. What’s Special About Video Calling?
We have been building islands – again…
But there is no old Video PSTN to connect those together
However, there is a standard (SIP) and a network (Internet)
We have seen such video calls for a long time
What more is needed?
High quality – Teleprecense; Guaranteed bandwidth and QoS?
Global; Not only within a company and not only within one carrier’s network
Telephone numbers (in addition to sip addresses)
Allow Telcos to Bill (being more than just Bandwidth Providers)? 20

21. There is a Solution! 21 Do More at the Enterprise Edge!
We can route here – The earlier the better
We can produce CDR’s for billing here
We can do number resolution here (or the ITSP can do it)
The Good News:
Reuse the SIP Trunking infrastructure (using E-SBCs)
Simple peering between carriers 21

22. Reusing the SIP Trunking E-SBC
Telco owned E-SBCs are already used for (voice) SIP Trunking
Full operator control
Service provider’s demarcation point
Enables the SIP Trunking – Video is not different from voice for:
NAT/Firewall traversal, PBX interoperability and Security
Reuse the same E-SBC for Video Calling!
In the Ingate and Intertex E-SBCs, it is all there:
Classify outgoing calls (as Video, HD voice or plain voice)
Assure right quality pipe and/or quality marking is used
Route the call directly to the other party (or
Use ENUM (public or private) for E.164 number to SIP address resolution
Only settlement free IP peering between operators required
Can fallback to best effort IP peering (Internet) in operator network
Produce and deliver CDRs for each call
Report Minutes and Data used
Include video and voice quality metrics (including MOS scores)
Deliver via Radius, Syslog, Management system (TR-069 informs) or method by choice 22

23. Simple For the Carrier Qwest Internet AT&T Internet SIParator IX78
MPLS
QoS IP Network
QoS IP Network
MPLS
ENUM
CDR
CDR
SIParator
IX78

24. The Intertex IX78 Supports All of these Architectures!
Quality Separated Networks Out to the Customer Edge is Nothing New It is Widely Used for Triple Play Services
Private Virtual Circuits
E.g. Telia
Internet
ADSL
PVC1
IP-TV
VoD
IMS
VoIP
PVC2
PVC3
E.g. Telia
Internet
Ethernet
VLAN1
IP-TV
VoD
IMS
VoIP
VLAN2
VLAN3
Virtual LANs (VLAN)
E.g. B2
Internet
Ethernet
WAN1
IP-TV
VoD
IMS
VoIP
WAN2
WAN3
IP QoS Separated Subnets
IP Level QoS
E.g. BT
Internet
ADSL or Ethernet
Priority3
Priority2
Priority1
IMS
VoIP
IP-TV
VoD
The Intertex IX78 Supports All of these Architectures! 24

25. Telcos Providing More than Bandwidth?
Operators deploy CPEs (E-SBCs) for SIP Trunking
Can also be general SIP enablers (at least Intertex’s and Ingate’s)
Provide high quality pipes for live communication!
If on separate layer 2 networks for quality, still make them routable to the Internet.
Provide Presence Server!
Per-to-peer presence is not good enough (heavy signaling, difficulties maintaining sync.)
Allow customers to manage their buddy lists and call policies
Provide the SIP Server and more if you wish
SIP Services can be anywhere (with cured firewall problem)!
Our E-SBCs produces CDRs if the provider wishes to bill
The CDRs also include bytes transferred & Call Metrics (e.g. MOS) 25

26. SIP Capable Firewalls See us at ITEXPO Room 208A!
Intertex Data AB
Rissneleden 45
SE Sundbyberg
Sweden
Tel:
Ingate Systems Inc.
7 Farley Road
Hollis, NH 03049
United States
Ph: +1 (603)
Tel sv: