3Intertex & Ingate Same parent company Intertex: SMB, SOHO and home SIP Firewalls and E-SBCsFor service provider volume deploymentIngate: Enterprise and SMB SIP Firewalls and E-SBCsSIParators® for enterprises and projectsCooperation in management and developmentCo-developed SIP codeIngate represents Intertex in the US
4Telepresence – Why not for Everyone? It has been there for years - high end – high cost,but you save airline tickets.But telepresence has more or less rolled out there own wiresNo global connectivity or at best via a certain conference bridge
5Is it coming? The OVCC Initiative (by Polycom)! A network just for Video Calling or the start of the common global UC network?Key points:A global quality IP networkService Providers only charge their own customersSIP is the standardSIP addresses ( -like) and E.164 numbers5
6Yes, Telcos are Concerned About their Core Business! Are Telcos just becoming bandwidth providers?IP has just been used to replicate POTS TelephonyWhere is the global Live IP Communication: Multimedia or UC?The “Beyond POTS” islands are taking over:at the Enterprise UC LANby Skype, Google Talk and the othersWe can Go Beyond POTS and Beyond Skype Now!Why not better and beyond?Telcos can bring it together and offer better!6
7Provide Internet+ so we can get Telephony+ UC rich communication (not just AM radio quality Voice): Bring the islands (Enterprise UC LAN, Skype, Google Talk and others) together!Deliver to the users: On LANs and with Smart Phones!UC should be global, with quality and with phone numbers as well as SIP-addresses!7
8Internet has Shown the Success of a Cloud! We need this for global UC:With:All you can do with SIP - UCFull mobilityNumbers and SIP addressesQuality up to TelepresenceInteroperability – Don’t GW, unless requiredDelivery to the usersSIP Connect 1.1Internet+But got this (SDN/IMS):(Wires on top of the cloud!? Wasn’t creating the cloud the success?)MPLSInternetSession Delivery Network (SDN) = POTSoIP8
9It’s Not Even Good for FAXing And Carriers Peer their Networks PSTN Style…It is even destructive for the 160 years old Fax service*And their billing is by voice minutes – Far away from any UC!And where did the reliability, scalability and good performance of IP go?* Mike Coffee, CEO of Commetrex: Work in progress by SIP Forum’s FoIP Task Group and the i3 Forum.T.38 works fine in one hop!
10Internet has Shown the Success of a Cloud! We need this for global UC:With:All you can do with SIP - UCFull mobilityNumbers and SIP addressesQuality up to TelepresenceInteroperability – Don’t GW, unless requiredDelivery to the usersSIP Connect 1.1Internet+But got this (SDN/IMS):(Wires on top of the cloud!? Wasn’t creating the cloud the success?)MPLSInternetSession Delivery Network (SDN) = POTSoIP10
11Provide Internet+ so we can get Telephony+ UC rich communication (not just AM radio quality Voice): Bring the islands (Enterprise UC LAN, Skype, Google Talk and others) together!Deliver to the users: On LANs and with Smart Phones!UC should be global, with quality and with phone numbers as well as SIP-addresses!11
12We Are (sometimes) Doing Better! SoftSwitch/SBCOverlayGWPSTNUC Voice MailRemote UsersIngate/Intertex E-SBCs enable SIP based Live UC Across the Borders!(SIP does not traverse ordinary NAT/Firewalls.)IP-PBXSIParator®Data & VoIP LANUsers and Services can be Everywhere: SIP must connect there!
13SIP is Self Routing and E-SBCs Can Do it All Deutsche TelecomInternetAT&TQwestTeliaSonera InternetMPLSMPLSQoS IP NetworkQoS IP NetworkMPLSENUMCDRCDRSIParatorIX78
14So, Don’t Just Feed SIP Into POTSoIP… ONLY FOR POTSSoftSwitch/SBCOverlayGWPSTNUC Voice MailRemote UsersFollow standards so we don’t need gateways, here, there and everywhere!IP-PBXSIParator®We do everything else successfully, flat over the Internet. Please let us have the same for all real-time communication also.The Internet+ Thanks!Data & VoIP LAN
15Time for Something Better: Internet+ Learn from the success of the Internet:Networks shall Not Be Application Specific!The Internet+:A non application-specific transport network: Just like the Internet!It IS the Internet – just extended:Delivery to the users, on LANs and to smart phonesPrioritization for real-time traffic - Just enable diffservMetering and charging of “beyond Internet usage”Good for everyone:The SDN is not needed,- IP connects end-to-end- SIP is a self-routingalso for the Telcos:Provide something better,- and users will pay for it.. Bill the better!
16Time for Something Better: Internet+ Learn from the success of the Internet:Networks shall Not Be Application Specific!The Internet+:A non application-specific transport network: Just like the Internet!It IS the Internet – just extended:Delivery to the users, on LANs and to smart phonesPrioritization for real time traffic - Just enable diffservMetering and charging of “beyond Internet usage”Good for everyone:The SDN is not needed,- IP connects end-to-end- SIP is a self-routingEnable the new services, interoperability and the standard we need and want!At the same time:New Telco revenueVast Telco infrastructure savingsHow to do?Easier than believed!also for the Telcos:Provide something better,- and usrs will pay for it.. Bill the better!
17It Should be of Utmost Interest for the Telcos Telephony Income (highly charged)Low ChargedInternet BandwidthQuality BandwidthNew IncomeDataRTCTelephony+Internet+ EconomySkype etc.Internet and Telephony EconomyBandwidth UsageFor real-time usage, we need an Internet pipe with prioritization enabled - not just for telepresence quality, but also for 2G, 3G and 4G mobile real-time usage with smart phonesHas to be charged separately. If not, it would be used for everything and we are back at all usage being at the same quality level.And we don’t want our smart phone batteries drainedAnd we want to use both phone number and addresses – not the many island.17
18Internet+ Model PKI The Internet with Quality Enabled ENUMDNSEMSTR-069SIP Connect 1.1PKIThe Internet with Quality EnabledGlobal IP Transport NetworkAll SIP Routed Everywhere (Not Gatewayed! Via SIP Proxies – Not B2BUAs)The TOQrouter – Trust, Openness, Quality – is a routing SIP proxy, a billing meter, and with built in SBC.
19Quality and Numbers are Important Some basics around IP QoS and why better Internet QoS cannot be for free:A. On the Internet we have Transport layer (4) QoS. The endpoint smartness of TCP makes it all work, filling and sharing the pipe, and backing off for datagram type of packets (e.g. UDP thus RTP). This is mostly often good enough – even for voice. However, in the process of sharing a filled pipe, even non TCP packets (e.g. UDP/RTP) are lost (and filling the whole pipe with such packets, is a catastrophe).B. IP Layer (3) QoS (DSCP/TOS bits honored) is available in almost any IP network – just ignored on the Internet – and gives absolute priority. You simply don’t lose any packets unless the whole pipe is filled with your quality level packets (and higher). This is needed for critical real time applications, especially low delay, packet loss sensitive applications; obviously telepresence and sometimes even voice.C. Giving IP Layer (3) QoS to the common Internet for free will of course not help! As soon as the first file sharer will select the highest quality, all users have to do the same to get their share and we are back to A. again. Thus, better IP Layer QoS has to bear a price – has to be charged!D. Prioritization and traffic shaping in boxes like ours helps in case A.. However, that only works for traffic that is known or classified by the box, which typically is not the case for SIP using workaround methods like STUN/TURN/ICE or Far End NAT Traversal, Skype, Google Talks or the others and will remain in an environment with the lowest quality.Give us a SIP address (same as ) for each phone number!- A usable one like: (notLet us have both: =And why not the same and SIP address by default with the subscription?19
20SIP wasn’t Meant for Islands or Voice Only! DNSpartco.comTo receive SIP calls globally:- A SIP server (Proxy Registrar)- SIP server domain published in DNSProxy Registrarfor partco.comRING!RING!RING!InternetTo initiate SIP calls:- A proxy capable of routing (=DNS lookup!) - Add ENUM to use E.164 numbersOutbound proxy for smartco.comCALLCalleeProxyCallerProxyCalleeCallerThe SIP tapeziodMagic? – It’s just the SIP standard…
21SIP is Self Routing and E-SBCs Can Do it All Deutsche TelecomInternetAT&TQwestTeliaSonera InternetMPLSMPLSQoS IP NetworkQoS IP NetworkMPLSENUMCDRCDRSIParatorIX78
22For the Telephony+ Services For a Telephony+ service (including POTS):SIP is the standard to use. All SIP transported everywhere!The SIP interface must be available everywhere and the network carry anything possible with SIP, both for users and services.The Network shall not interfere – not be application specific – that is between users and services. SIP proxies are allowed, butGateways and B2BUA are only allowed toward outside elementsUsage of E.164 numbers in addition to SIP addressTelcos must share numbers in a common data baseENUM convert numbers to SIP addresses (and other addresses Skype)Gateways in and out to the other islands.Trust between participants (like having a telephony subscription/telephone line/number today)
23Internet+ Model PKI The Internet with Quality Enabled ENUMDNSEMSTR-069SIP Connect 1.1PKIThe Internet with Quality EnabledGlobal IP Transport NetworkAll SIP Routed Everywhere (Not Gatewayed! Via SIP Proxies – Not B2BUAs)The TOQrouter – Trust, Openness, Quality – is a routing SIP proxy, a billing meter, and with built in SBC.
24For the Telcos To Do * TOQ stands for Trust, Openness, Quality Enable diffserv on Internet+ Accesses(Or provide separate high quality pipe on routable IP.)Provide ENUM directory (public or private)E.164 numbers to SIP address resolutionPeer higher quality pipes with other carriers just as for InternetShare ENUM between the CarriersDeploy TOQrouters* – similar to clever E- SBCs used for SIP TrunkingManage as already done in volume deploymentsProvide Certificates to the TOQrouter for trustTOQ routers use mutual TLS for all WAN SIPPick up CDRs from the TOQrouter and Bill* TOQ stands for Trust, Openness, Quality24
25For mobile and Our SmartPhones Just replace today’s network firewall with the TOQrouter* and use the IP channel for good real-time communication also No more battery draining (keep-alive packets not needed)Forget about VoLTE in 4G networks. It is POTSoIP again…No more ”mobility plumbing” needed: SIP reaches everywhere!Internet+4G 3G 2GVoLTE* TOQ stands for Trust, Openness, Quality
26Most Important: SIP Everywhere – Just like HTTP! We would not have the Web, if HTTP did not go between the Browser and the Web server. Today SIP is stopped and limited by Firewall/NATs, SoftSwitches and bad SBCs. The TOQrouter is a standard compliant SIP proxy (and SBC) that routes all SIP between the Users and Servers according to RCF The TOQrouter is not interfering with the usage of the SIP communication (like today’s plumbing), but can measure the usage for billing.Proper SIP transport (by routing SIP proxies) is required:For all beyond POTS usage, UCFor eliminating network incompatibilities – Interop issues are then reduced to being only between clients and servicesFor mobility: User and services can be anywhere!For global UC: Clients, PBXs, Cloud services etc. only have to use a standard SIP interface.There is no other way to go!
27Really Possible? – Don’t we need this? Will there then be another 10 years before Internet+, or?All standards and all elements are ready to use.And they can be introducedstep-by-step!No IMS multimedia call across carrier domains after 5 years of deployment. But POTS on RJ11 delivered…
28The TOQrouter Can Be The Registrar YOU Shall Decide Whom To Accept Calls From Example using the Intertex IX78 as TOQrouter:The TOQrouter is a good registrar, but the registrar can be located anywhereYour Buddy list and below allows you whom to communicate withThose on the “Trusted Network” will be the Telephony subscribers as beforeExists on Proxy level and individual User level28
29Most of the Gear is Already in Use …but not (yet) for Internet+In the above deployment, the Intertex IX78 E-SBC is used for SIP trunking, but is actually capable of TOQrouter functions.This major European Telco has a high quality VoIP network using white addresses and is routed to the Internet. An Internet+ model would here simply mean IP peering their VoIP IP network to other service providers’ high quality networks, supplying an ENUM database and relying on CDRs delivered to the management system.The Intertex IX78 already provides the clean SIP interface to LAN endpoints and servers on the LAN, in parallel with its gateway approach toward the PBX and the IMS system.InternetIMSVoIPTR-069IP-TVVoDWiFiVLANs or ADSL Virtual CircuitsThe Multimedia LANTelepresenceIP-PBXPDA
30The SIP Standard: Global and More Than Voice! Today over the Internet, but then:not always sufficient qualitydifficult to bill by usage (Telcos’ core business…)and the NAT/Firewall traversal issue must be resolvedTelcos have feared another Skype…Telcos don’t like another Skype. Offer better and bill happily with Internet+!
31Billing – CDRs for Efficient Processing Now also with Video Call Metrics and Pipe Used!CDRs with Call Quality Metrics – View from iEMS (our TR-69 management system)
32Can the “Core” Soft Switch/SBC Participate? Sure - it can be a SIP Registrar - which could be used instead of the registrar in the TOQrouter (In an Internet+ model, a SIP server can be everywhere!).As a routing element; It must be a compliant SIP Proxy (B2BUAs/Gateways must not be in the transport part of the network)!It must only route PSTN calls into the POTSoIP overlayIt could do some individual forwarding etc. of incoming calls (instead of the TOQrouter) –IF behaving like a SIP ProxyThe TOQrouter will be required anyway
33Why are there SDN and IMS? IMS world said (but could not deliver):“Evolving broadband communication by launching new services cost-efficiently““People want an enriched communication experience, anywhere, anytime, and to any device. By XXX IMS technology operators are able to cost efficiently deliver that experience and to generate revenue”An SDN, but not today’s transport network, the Internet, may achieve:service providers can bill for their services,the ability to use a higher quality IP transport network,the ability to only allow trusted users - that is, subscribers to a service provider - to participate in the communication,fulfilling lawful intercept requirement andfulfilling emergency calling requirements.The Internet+ model provides the above better, while maintaining:reliability (no introduction of massive central elements)scalability (no introduction of massive central elements)good performance of a global IP transport networkInteroperability (no multiple conversions, no interference with SIP).
34The TOQrouterA Firewall/NAT (with general Firewall security functions)An RFC 3261 compliant SIP Proxy also implementing RFC 3263 and RFC 3264The SIP Proxy performing ALG functions by:- handling and being aware of its NATed environment (by reading the IP routing table)- reserving NAT ports and rewriting the SDP accordingly (according to the Midcom RFC 3989)- setting up the NAT and opening pinholes for the media in the Firewall (according to the Midcom RFC 3989)The SIP Proxy implementing RCF 3325 (trusted networks):- using mutual TLS and certificates towards SIP Proxies on the WANHaving functions for classifying SIP traffic to assign correct QoS class, based on various conditionsA SIP Registrar for (i) keeping and using registrations from LAN connected devices – a Shadow registrar - to allow incoming calls. This (shadow) registrar should also be able to handle RFC 6140 Gin registration for a PBX. (ii) Being the main registrar for one or several domains.A function and setup for SIP Domain forwarding to local SIP Servers, e.g. an IP-PBX on the LAN to be used by remote users.A dial plan with ENUM look-up to allow E.164 numbers to be used, as described belowQoS based routing, to select correct IP interface, in case special QoS WAN pipes are providedThe TOQmeter– A meter for billing purposes plus trust for the providerA management interface and protocol, allowing very high network scalability, with trust and security to allow CDR delivery over a public network (TR-069, sending CDRs in Informs is recommended.)The TOQrouter is also the point where a legal requirement of intercept can be fulfilled. And it can aid emergency calling since its physical location usually is known. (RFC 6442)
35The TOQrouter Optionally, the TOQrouter may include: Functions in the SIP proxy for improved compatibility towards SIP devicesGateway functions in a B2BUA for extended compatibility improvements towards non SIP incompatible devices (e.g. for connecting a variety of PBXs)Firewall and NAT functions for data trafficAnalog telephone ports (for connecting POTS ports)Triple play capability, by handling separate IP interfaces for Internet, VoIP/IMS and IP-TV and VoD etc.An access modem/router, e.g. for DSL, Cable, GPON, VLAN Ethernet, T1, MPLSMultimedia capable PBX functionality using the available SIP Proxy and SIP RegistrarOther useful Business and Residential Gateway functionsNotice that these kind of functions must not be confused with, or interfere with, the basic TOQrouter functions!
36It is between the endpoints: Between Users and Servers! What SIP to Use? – Just SIP! Internet+ does not interfere – Just transports/routes (as HTTP or SNTP)It is between the endpoints: Between Users and Servers!For all endpoints using SIP in the Internet+ model, minimum:RFC 3261 SIP: Session Initiation ProtocolRFC 3263 SIP: Locating SIP Servers – DNS usage, plusRFC 3264 An Offer/Answer Model with the Session Description Protocol (SDP)RFC 4028 TimerRFC 6442 Geolocation header (for emergency calling)RFC 3325 For endpoints wanting to set Privacy PoliciesG.711 codec for minimum voice interoperabilityFor endpoints wanting confirmed early media (telephones):RFC 3262 SIP: Prack/100rel for early mediaFor endpoints using call transfer and similar:RFC 3515 ReferRFC 3891 ReplacesRFC 3892 Referred-by
37What SIP to Use. – Just SIP What SIP to Use? – Just SIP! (continuation) Internet+ does not interfere – Just transports/routes (as HTTP or SNTP)For Presence endpoints:RFC 3265RFC 3856RFC 3863For IM endpoints:RFC 3428For servers supporting endpoints (e.g. an IP-PBX) if they want the option of authenticating their users:RFC 3325 Asserted Identity within Trusted NetworksRFC 6140 (Gin Registration) or use fix IP ITSP IP address when using SIP Connect 1.1Extensions, such as (most of?) the IMS additions, will be transported correctly by the TOQrouter.
38More on the Internet+ Friday 3rd, 9:00 am : BoF, Room A208 Birds-of-a-Feather , SessionIntertex Data ABRissneleden 45SE SundbybergSwedenTel:Ingate Systems Inc.7 Farley RoadHollis, NH 03049United StatesPh: +1 (603)Tel sv: