2SIP Trunking: Can it be More Than a New Connection? SIP Trunking ProviderIP CloudSIP TrunkGWPSTNSIP SystemTDM TrunkGWIngate SIParator®FirewallIP-PBXData & VoIP LAN
3and More Than About Interoperability Service providersIP-PBXs360 NetworksAirespringAT&TBandTelBandwidth.comBroadvoxCbeyondCellipCordia CorporationExcel SwitchingGammaGlobal CrossingIP-OnlyJuma NetworksLevel 3NetlogicNexvortexNuvoxO1PaetecPrimusRNK TelecomTDCTele2TeliaToplinkVoEXVoIP UnlimitedVoxboneMore in pipeline.....3ComAastraDigium/AsteriskAvayaCiscoDialogicEricsson MX-OneFonalityInnovaphoneInteractive IntelligenceIwatsuMicrosoftMitelNEC / SphereNortelObjectworldPanasonicPingtelSamsungSERShoretelSiemensSIP-GearSwyxMore in pipeline....SIP TrunkIngate SIParator®-or-Ingate FirewallAs Ingate have interoped with many IP-PBX vendors like <Repeat the one in the list> we will also guarantee interoperability for the Service Provider. The Service Provider only have to ensure interop with Ingate and then a number of different IP-PBXs will automatically be supported.<Next slide>Compliant withCarrier EquipmentAcme PacketBroadsoftNexPointSonusSylantroSERSee:
4and More Than Easy Deployment UpdateInstallation Wizard
5Benefits of SIP Trunking Monthly cost savingsSingle network for all communicationsLower cost of Moves, Adds and ChangesDisaster Recovery / Business ContinuityUser provisioningSteps of going beyond POTS replacement – Unified CommunicationMobility – Remote workersMultimedia - Video, IM, Presence, Real Time Text RFC 4103, etc.Real SIP address – like addressWiFi mobile phone communicationLet’s talk about this now!
6There is Potential to Go Beyond! RJ11POTS and PSTN have been there for 100 yearsBlack Phone3.5 kHz isn’t HiFi, but MOS is 5!RJ45LAN Intranet InternetNow we have a new global network: The IP NetworksAnd we have a new standard: SIPWiFi MobileSoft ClientIP PhoneAnd there is more than Voice: Presence, IM, Video, etc.
7But have We Seen Much More than POTSoIP? GatewayTollBypassEuropeUSVPNTunnelIP PBXIP PBXGatewayPBXAre we stuckwith old POTStelephonyover new wires?PSTNGatewayVoice overBroadbandSoftSwitchVery seldom VoIP connectivity between the VoIP IP clouds!Most broadband VoIP providers still run calls between each other over the PSTN!
8And When will We See the Next Step of Internet Usage? SMTP createdHTTP created the WebSIP can create global Live IP Person-to-Person Communication!
9There is a Severe Infrastructure Problem… A common Network and common Protocols changed our lives:SMTP gave us global !HTTP gave us the Web!NATs and Firewalls were designed to allow such protocols.IMS(SIP based)What about SIP for Live Person-to-Person Communication?InternetwebSIP does not traverse the common NATs and firewalls protecting the LANs .FWFWFWFWLANLAN
10Why are NATs and Firewalls Such Obstacles Typical Internet protocol (SMTP, HTTP…)InternetHOSTSERVERSIP is the Protocol for IP CommunicationPerson-to-Person,BUT IT DOES NOT REACH THE USER’s!SIP (and H.323…) connects Person-to-PersonInternetPERSONLocate the personSet up a session+Open real time media streams
11And that is a Main Problem when SIP Trunking IP-PBXs SIP Trunking ProviderPublic InternetGWPSTNSIP SystemSIP Trunking does not pass a SIP unaware NAT/firewall!…and the firewall cannot be opened enough to make it work because of NAT.FirewallIP-PBXData & VoIP LANSoft Clients and Multimedia Terminals
12And Hosted VoIP Suffers from the Same Problem Telephone ports (FXS) on the CPE is a popular way to deploy IP telephony. By logically placing the SIP clients on the outside of the NAT/Firewall, unreliable work-around methods like STUN, TURN and ICE become unnecessary. However, this only gives POTS replication, often even stopping general SIP based services!InternetThe 5060 SIP-port is just grabbed on the outside to the FXS ports!(And lower level SIP ALGs often cause problems and do not handle more than basic scenarios.)FXS ports (for plugging in analog phones)is really POTS replication!
13Let’s Use Real SIP Capable NAT/Router/Firewalls IMSInternetSIPNo 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 occurNo special requirements on the SIP Client – Just standard SIPWired or wireless SIP clients (phones, soft clients, PDAs)Intertex and Ingate CPEs have a SIP Proxy based Firewall/NATGeneral, can handle complex call scenarios and all SIP servicesAdditional functionality available (PBX like functionality, ENUM, etc.)
14Let’s Fix the SIP Trunking and at the Same Time Enable Going Beyond POTS Replication SIP Trunking ProviderPublic InternetGWPSTNSIP SystemRemote UsersIntertex IX78IP-PBXDemarcation point of service and bringing SIP communication to the LANData & VoIP LANSoft Clients and Multimedia Terminals
15And Step in to the World of Global Live IP Communication Global IP ConnectivityVoIP++All SIP ServicesFix the NATs and firewalls and there is no reason to be caught in POTSoIPs islands! SIP connects globally and has lots of applications. It’s not magic – It’s just the SIP standard!
16Beyond POTS: Mobility, Multimedia and Numbers InternetTHIS LAN, SIP Trunking SummitUS, Miamigunnar.firstname.lastname@example.orgSwedenADSLOmnitor Case Study:MultimediaVoiceVideoReal-time Text RFC4103
17Gunnar Hellström, Omnitor, Presenting Live from Sweden Using Omnitor application Allan eC:Voice: G.722 wide band codecVideo: H kbpsReal-time text: RFC4103Using standard SIP over the Internet.See presentation: Omnitor-TotalConversationOther Live Demos Follow!
19Beyond POTS: Mobility, Multimedia and Numbers We certainly want our home workers connected to the company PBXAnd the same goes for our road warriorsat the hotelat public WiFiAll should have all PBX servicesReached by extension number or DIDPlace PSTN calls (displaying correct CallerID)Voice mail, conferencing etc.Presence, IM, video if supported by the PBX
20Internet Sweden US, Miami Sweden PSTN PSTN SIP/PSTN Gateway ADSL email@example.comSwedenADSLInternetPSTNSIP/PSTNGatewaySIP Trunk Provider 2US, MiamiINTERTEX LANintertex.seSwedenPSTNSIP/PSTNGatewaySIP Trunk Provider 13GINGATE LANingate.comCELLPSTNTHIS LAN, SIP Trunking SummitPBX Mobility with SIP Trunking (demo)PSTN my direct numbersteeg 29 = my extension numbercalle 23 (steeg)PSTN Intertex main ext 29, 25s leave Voice Mailcalle mobile in the hallVoice Mail comes via
21Beyond POTS: Mobility, Multimedia and Numbers Presence is really usefulSo 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?
22Internet Sweden US, Miami Sweden PSTN PSTN SIP/PSTN Gateway ADSL firstname.lastname@example.orgSwedenADSLInternetPSTNSIP/PSTNGatewaySIP Trunk Provider 2US, MiamiINTERTEX LANintertex.seSwedenPSTNSIP/PSTNGatewaySIP Trunk Provider 13GINGATE LANingate.comCELLPSTNTHIS LAN, SIP Trunking Summit…and other SIP based applications (demo)Presence, Instant Messaging (Who is available?)Not restricted to own domain intertex.se, here also ingate.com (listen + video)Wide band codec: “S” is not “F” anymore!VideoMedia goes the shortest way (just to the local switch here)and we saw global SIP calls – not restricted to own domain
23Beyond POTS: Mobility, Multimedia and Numbers Telephone numbers WILL be around for longWe are simple too used to E.164 numbers and everyone has oneBut they are really not particularly user friendly…Would have been a success if we had used our fax numbers?Operators often provide SIP names likeNot user friendly at all. For internal use only.We want a real SIP address:Just like our addressesLet us have both: =Service providers can do itHere the Intertex and Ingate products do it!
24Internet Sweden US, Miami Sweden PSTN PSTN SIP/PSTN Gateway ADSL email@example.comSwedenADSLInternetPSTNSIP/PSTNGatewaySIP Trunk Provider 2US, MiamiINTERTEX LANintertex.seSwedenPSTNSIP/PSTNGatewaySIP Trunk Provider 13GINGATE LANingate.comCELLPSTNTHIS LAN, SIP Trunking SummitTelephone 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)
25ENUM – Using Phone Numbers but Staying on IP 2) ENUM lookup: Is there a SIP address for ?Ask DNS: e164.arpaYeah try3) Place the call directly to:IPIP1) Dial Phone NumberPSTNNot only for PSTN by-pass, but also for better voice and multimediaClients, Intertexes/Ingates, or service providers can use ENUM
26SIP Capable Firewalls See us at ITEXPO Room A108! Intertex Data ABRissneleden 45SE SundbybergSwedenTel:Ingate Systems Inc.7 Farley Road HollisNH 03049United StatesPh: +1 (603)Ph Sweden:
27What about STUN, TURN, ICE and Far End Nat Traversal (FENT)? STUN, TURN, ICE (client based) and FENT (typically done by SBCs) are alternative methods for working around non SIP capable NATs and FirewallsUse them if required, e.g. for road warriors behind well behaved NATs with a not too tight firewallsIngate and Intertex can enable FENT to help SIP remote clients behind non SIP aware NATs and firewalls, e.g. Remote UsersBut for SIP trunking and global and general SIP communication, you need something reliable and secure that also handles real complex call scenarios
28Workaround Methods have their Limitations… And with general SIP on several WAN-pipes: No chance!ISSUES:IMSVoIPIMSRELIABILITY: STUN, TURN, ICE and Far End NAT Traversal (FENT) rely on guesswork of NAT/Firewall behavior – Thus never fully reliable. Unsuccessful calls – especially in complex scenarios, one way media, timeout during calls etc. etc.. SECURITY AND STABILITY: STUN, TURN, ICE are Client based, FENT is operator based (part of SBC). Both rely on punching holes in the Firewall and keeping NAT bindings open.InternetKeep-alive packets inhibit sleep mode, thus draining batteries of WiFi devices. STUN TURNNo control of QoS– where it is most important!FWFWFWFWSECURITY POLICY: These workarounds require Firewalls to have large port ranges open from inside. FW is no longer in control of what is allowed into the LAN! STUN, TURN and ICE delegate control to the Client and can also be used for evil protocols. FENT delegates control to the Operator.LANLAN