Remote offices survival

Survivability ChallengesVoIP Solutions that are MORE THAN JUST TALK 19 November 2011

Remote Office SurvivabilityAgenda • Understanding the Challenge • Scenarios • Solutions approaches • End point dual registration in detail • Quick guide • A proposal to Elastix Community 2

SurvivabilityThe Challenge Problem Definition. Many organizations deploying IP Telephony solutions are using a similar, very cost effective model where a central telephony server supports many IP/Ethernet-based phones in remote sites. Recognizing the need for reliability, these companies are making their central IP- PBXs highly redundant, often deploying multiple servers for failover. However, what happens if theres an issue on the WAN? Perhaps a circuit fails, or a routing loop occurs. ………… No matter how redundant your telephony server is, if your IP phones cant reach it, they lose dial-tone……………… 3

SurvivabilityThe Challenge• Telephony is one of those facts of live that we take for granted (as the fact that we breadth without any conscientious control from ourselves)• You take for granted that a dial tone will come up just picking up a handset, and you will be able to communicate to somebody else just after a few key strokes.• Have you ever thought in what is the difference in impact for any organization when you have a few minutes service interruption on Internet access, or Accounting System Access compared with being a few minutes without phone service?.…………………A “Survival Enabled” VoIP deployment is the one that has included a series of attributes and characteristics on all of the components, in the underlying infrastructure as well as all the distributed components………. 4

SurvivabilityThe Challenge There is no such thing as a Survival Gateway, or a Survival Phone or even a Survival PBX….…… there are a series of attributes for all of them to be able to have a Survivable designed solution…Lets then Define:• Online Mode. From the perspective of any SIP device, On Line Mode is when this device has full interaction and connectivity with the central point of arbitrage (IP PBX, UC Server, etc).• Survival Mode. From the same perspective, is when the device loose the “advice/guidance” from the central site and now needs to take decisions by itself on how to process a request. 5

SurvivabilityScenarios of resolution PSTN3 known and common PRIMARY REG. SVR approaches: SECONDARY REG. SVR SIPx Server Farm - Learning Outbound Proxy WAN - B2BUA - Dual Registration 6

SurvivabilityScenarios of Resolution• Learning Outbound Proxy: PST PRIM N ARY REG. SVR SECOND - A local device in the Remote Location ARY REG. SVR SIPx Server Farm acts as the Outbound Proxy. WA N - It learns: • Who is registered and authenticated where. • How calls are routed and treated - You add: • Default Outbound routes for survival calls • How incoming calls are treated in survival mode 7

SurvivabilityScenarios of resolution• Back to Back User Agent PST PRIM N ARY REG. SVR SECONDA - A local entity provides all registration RY REG. SVR SIPx Server Farm and authentication features for local WA N sip devices. - The local entity registers and replicates authentication requests to the central site on behalf of each local device - Local Entity has rules to treat calls when outbound registration is not working 8

SurvivabilityScenarios of resolution• Dual or Redundant registrar. PST PRIM N ARY REG. SVR - Each local device has 2 or more registrar SECOND ARY REG. SVR SIPx Server destinations for the same UA. Farm WA N - Each local Device is able to switch to a secondary registrar/proxy when primary is not responding. - Each local device is able to identify when primary registrar is back to normal - One of the local SIP devices is able to provide the secondary server capabilities with basic telephony features 9

SurvivabilityDual registrar in details PSTN PRIMARY REG. SVR SECONDARY REG. SVR SIPx Server Farm WAN 10

SurvivabilityDual registrar in details SECONDARY REG. SVR (1) PSTN PRIMARY REG. SVR VRRP or similar Redundant Router SECONDARY REG. SVR (2) SIPx Server WAN Farm 11

SurvivabilityDual registrar in details PRIMARY REGISTRATION SERVER REPORTED REGISTERED REPORTED NON-REGISTERED SERVICE AVAILABLE PENDING FOR FIRST SIP REQUEST AFTER SYSTEM NORMAL ONLINE STATUS CAME BACK, OR NEXT RETRY (STAGE 1.1) REGISTRATION (STAGE 1.4) SERVICE NON-AVAILABLE TRANSITION AFTER MAIN SITE DOWN AND BEFORE NORMAL SURVIVAL MODE NEXT REGISTRATION OF SIP (STAGE 1.3) DEVICE (STAGE 1.2) 12

SurvivabilityDual Registrar – Reduce unstable stagesStage 1.2. Reduce expiration time for registration to a minimum value in the SIP end device. Having the phone (SIP end Device) to force an un-registered state if an invite times out. Use TCP for SIP signaling instead of UDP. That will eliminate the timeouts waiting times.Stage 1.4 . Keep the Registration retry time very short In any INVITE the SIP end device, always try the primary even if it is declared as non-registered, and if succeed, re-register. This is the typical way most of the Phone Vendor implement dual registration (Already tested with Polycom) 13

SurvivabilityA Quick Guide for Dual Registrar Approach• Suggested Devices attributes: - Local SIP devices with Dual Registrar/Proxy support. - Extended functionality on local Gateway(s): • Be the Local Call Control for • WAN Access Router • VRRP • Registrar Server • Local PSTN connection 14

SurvivabilityA Proposal to Elastix Community• Go beyond Hardware Certification Program - AutoDiscovery - AutoProvisioning• Consider Survivability as a solution attribute design. - Add a remote Location entity - Associate SIP End devices belonging to remotes - Define Survival Mode rules - Push Survival Attributes to the local Call Control Device (Gateway/Router) 15

SmartNode VoIP GatewayQuestion and Answers 16

PRODUCT PRESENTATION 19 November 2011

SmartNode VoIP GatewayCorporate Overview Over 1,000 products… • Patton Designed • Patton Manufactured • Patton Supported • Patton Certified 18

SmartNode VoIP GatewayCorporate Overview Patton Engineered A Family Made in Company the USA Global Unrivaled Range, Customer Local Support Reach 19

SmartNode VoIP GatewayCorporate OverviewGlobal Range, Local Reach• Washington DC, USA – Patton Electronics - Headquarters - Manufacturing plant• Berne, Switzerland – Patton-Inalp Networks - VoIP competency center - Sales & Marketing Western Europe• Chennai, India – Patton India - Sales & Marketing India - R&D Center• Additional offices - Italy, Hungary, Vietnam, Lebanon, Mexico and Sydney 20

SmartNode VoIP GatewayApplications In the meantime…. Future: All IP SmartNode Point of Service between TDM and IP Past: › TDM: Circuit-switched, using ISDN or analog lines All TDM › IP: Packet-based, using Internet Telephony technology 21

SmartNode VoIP GatewayApplications SmartNode Jobs  Call Switching Voice Circuit Switch  Protocols conversion PSTN  Voice encoding and decoding SmartNode Gateway  IP Routing VoIP VoIP Data/Voice IP Router 22

SmartNode VoIP GatewayApplications: IP PBX IP PBX PSTN / PBX LAN / VoIP ISDN Phones WAN / VoIP FAX IP Phones Terminal Gateway SIP Trunk Gateway 23

SmartNode VoIP GatewayApplications: IP PBX• Terminal Gateway - Connects any analog device to the LAN • Phone, fax, modem, door or elevator communication system, etc. IP PBX LAN / VoIP ISDN Phones FAX IP Phones 24

SmartNode VoIP GatewayApplications: IP PBX• SIP Trunk Gateway to PSTN - Connects IP telephony to PSTN - Survivability • Life Line (in case of power failure) • SIP Registrar (in case of server failure) IP PBX PSTN LAN / VoIP Life Line IP Phones ISDN Phone 25

SmartNode VoIP GatewayApplications: IP PBX• SIP Trunk Gateway to VoIP/PSTN - Enterprise Session Border Router • VoIP to VoIP connection, including transcoding - PSTN Fallback if network goes down - QoS for voice priority IP PBX PSTN Fallback PSTN LAN / VoIP WAN / VoIP IP Phones 26

SmartNode VoIP GatewayApplications: SIP Trunking • SIP Trunking with Traditional PBX - Cut costs with VoIP - Preserve investments in existing infrastructure - PSTN Fallback PSTN FallbackISDN Phones PSTN PBX ITSP T1 WAN / VoIP FXS SIP 27

SmartNode VoIP GatewayApplications: SIP Trunking• SIP Trunking with all IP - QoS - Security - Transcoding IP PBX ITSP WAN / VoIP IP Phones FAX 28

SmartNode VoIP GatewayApplications: SIP Trunking• SIP Trunking with IP AND traditional telephony - Smooth migration from old to new - Staged investments PBX ITSP WAN / VoIP IP PBX 29

SmartNode VoIP GatewayIP PBX Partners 30

SmartNode VoIP GatewaySoftswitch Partners 31

SmartNode VoIP GatewayVoIP Provider Partners 32

SmartNode VoIP GatewayWhy SmartNode? • More than just talk - Patton Quality & Reliability - Proven Interoperability - Robust Enterprise Feature Sets and Functionality - Industry-Best Customer Support - Swiss Designed. Made in the USA. 33

SmartNode VoIP GatewayPort Layout Power WAN Uplink Telephony: ISDN BRI (S0), PRI, LAN/WAN FXS, FXO Ethernet 34

SmartNode VoIP GatewaySmartWare Software• Same firmware for all models - Easy to manage - High interoperability - Learn one, know them all• Release cycle - Free upgrades every two months - Free updates every 18-months• Swiss precision engineered 35

SmartNode VoIP GatewaySmartNode Software Features Full VoIP Protocol Support  SIPv2  T.38 Fax, Fax and Modem Bypass,  G.711, G.729, G.726, G.727, G.723  DTMF relay, transparent ISDN data Telephony Features Quality of Service  Euro-ISDN-DSS1, NTT and Q.SIG  Voice Priority  AOC  Traffic Management  CLIP/CLIR  DownStreamQoS™  Hold, Transfer and much more  TOS, DiffServ, 802.1p Management & Provisioning Complete Access Routing  Web and CLI managed  IP Router, RIP  Auto-Provisioning  Firewall - NAPT, ACL  Configuration Up- and Download  DHCP, PPPoE  Remote upgrades, SNMP  IPSec VPN Outstanding Interoperability  Advanced Call Routing  Regular Expression Routing  Numbering Plan Integration  Interoperable for Voice and T.38 fax 36

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback - Failover Relay - SIP Registrar - Dial Backup - IP-Link Redundancy 37

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback • SmartNode automatically reroutes to the PSTN in the case of a network outage. - Failover Relay - SIP Registrar - Dial Backup - IP-Link Redundancy 38

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback - Failover Relay • SmartNode automatically reroutes to the PSTN in the case of a power outage. - SIP Registrar - Dial Backup - IP-Link Redundancy 39

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback - Failover Relay - SIP Registrar • SIP clients can register directly with the SmartNode instead of a SIP softswitch. This enables the registered SIP clients to be able to make and receive calls over the PSTN during a network outage. - Dial Backup - IP-Link Redundancy 40

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback - Failover Relay - SIP Registrar - Dial Backup • During network and power outages, SmartNode enables dial-up connection to the PSTN for data transfers. - IP-Link Redundancy 41

SmartNode VoIP GatewaySurvivability• Voice and Data Survivability - PSTN Fallback - Failover Relay - SIP Registrar - Dial Backup - IP-Link Redundancy • Many SmartNode models ensure connectivity to the network by offering multiple Ethernet ports for WAN link redundancy. 42

SmartNode VoIP GatewayQoS• Ensures voice quality by managing data communications so that voice packets and other real-time data are prioritized. - Priority - Weighted Fair Queuing (WFQ) - Shaping - Burst-Tolerant Shaping 43

SmartNode VoIP GatewayQoS• DownStreamQoS™ - When data floods your downstream line because of large file downloads, SmartNode creates a virtual bottleneck for data traffic to ensure time-sensitive voice traffic gets through properly. 44

SmartNode VoIP GatewayFax that Works• The Problem - VoIP technologies were designed for voice communications, not fax. Fax requires an uninterrupted data flow to operate.• SmartNode Solution - G.711 bypass - T.38 Faxing - Fax Transcoding - Interoperability - High-Precision Clock 45

SmartNode VoIP GatewaySmartNode Product Categories Gateway- Gateway IAD ESBR Router VoIP Gateway: SN4960 Only Converts PSTN to SIP(or H.323) Yes Yes Yes PSTN Interfaces: FXS, FXO, BRI, PRI IP Router No Yes Yes Yes IP Routing, QoS, VPN, etc. WAN Access: No No Yes Optional G.SHDSL, ADSL, X.21, V.35 VoIP Border Controller: No No No Yes Interconnects multiple VoIP networks Ethernet Ports 1 2+ 1+ 2+ 46

SmartNode VoIP GatewaySmartNode Product Categories Gateway Gateway-Router IAD PBX/Phones PBX/Phones PBX/Phones Modem LAN LAN Modem WAN WANLAN WAN 47

SmartNode VoIP GatewayAnalog FXS/FXO Product Line M-ATA SN4110 SN4520 SN4830 SN4300 SN4400* SN4900 Telephony Interfaces FXS FXS & FXO FXS & FXO FXS & FXO FXS FXS FXS or FXO 2, 4, 6, or 2, 4, 6, or 2, 4, 6, or 16, 24, or 12, 16, 24, 12, 16, 24, # of Telephony Ports 1 8 8 8 32 or 32 or 32 VoIP Gateway: Converts PSTN to SIP(or H.323) Yes Yes Yes Yes Yes Yes Yes PSTN Interfaces: FXS, FXO, BRI, PRI IP Router No No Yes Yes No Yes Yes IP Routing, QoS, VPN, etc. Number of Ethernet 1 1 2 2 1 2 2 Ports G.SHDSL (Optional) No WAN Access No No No Serial X.21 No Serial X.21 Serial V.35 Serial V.35 *The SN4400 only differs from the SN4900 in that it has FXS interfaces only, no WAN access, a single internal power supply, and 0 to 40 C operating temperature (instead of 0 to 50 C) 48

SmartNode VoIP GatewayISDN BRI Product Line SN-DTA SN4120 SN4630 SN4650 SN4660 SN4670 BRI with BRI with Telephony Interfaces BRI (NT or NT+TE) BRI (TE) BRI BRI FXS/FXO FXS/FXO # of Telephony Ports 1 or 2 1 or 2 3 or 5 3 or 5 Up to 12 Up to 12 # of VoIP Calls 2 or 4 2 or 4 4 or 8 4 or 8 Up to 36 Up to 36 VoIP Gateway: Converts PSTN to SIP(or H.323) Yes Yes Yes Yes Yes Yes PSTN Interfaces: FXS, FXO, BRI, PRI IP Router No No Yes Yes Yes Yes IP Routing, QoS, VPN, etc. Number of Ethernet Ports 1 1 2 1 4 4 G.SHDSL WAN Access No No No Serial X.21 No G.SHDSL Serial V.35 49

SmartNode VoIP GatewayT1/E1/PRI Product Line SN4940 SN4950 SN4960 Telephony Interfaces T1/E1/PRI T1/E1/PRI T1/E1/PRI # of Telephony Ports 1 or 4 1 or 4 1 or 4 # of VoIP Calls Up to 120 Up to 120 Up to 120 VoIP Gateway: Converts PSTN to SIP(or H.323) Yes Yes Yes PSTN Interfaces: FXS, FXO, BRI, PRI IP Router No Yes Yes IP Routing, QoS, VPN, etc. Number of Ethernet Ports 1 2 2 G.SHDSL (Optional) WAN Access No Serial X.21 G.SHDSL Serial V.35 VoIP Border Controller: No No Yes Interconnect multiple VoIP networks 50

SmartNode VoIP GatewayEnterprise Session Border Routers (ESBR) Product Line SN5200 SN5400 SN4960 T1/E1/PRI Telephony Interfaces None None (1 or 4) SIP to SIP Call Capacity Up to 32 Up to 196 Up to 180 SIP to SIP Call Capacity With Transcoding N/A Up to 64 Up to 60 VoIP Gateway: Converts PSTN to SIP(or H.323) No No Yes PSTN Interfaces: FXS, FXO, BRI, PRI IP Router Yes Yes Yes IP Routing, QoS, VPN, etc. Number of Ethernet Ports 5 2 2 G.SHDSL WAN Access No G.SHDSL Serial X.21 Serial V.35 VoIP Border Controller: Yes Yes Yes Interconnect multiple VoIP networks 51

SmartNode VoIP GatewayIndustry-Best Customer Support• The BEST support team in the business! - Free Lifetime Support and Upgrades - 24/7 Premium Support - SmartNode Training - On-Line Help “Your support team was fantastic. The best support call I have ever had to make. You guys are by far the best (and I have called everyone) in the business. I cant thank you enough for the great service.” - Joe Santaniello- IT Manager at Wireless Zone 52

SmartNode VoIP GatewayFor more information onSmartNode, please visit:www.patton.com/smartnode 53

SmartNode VoIP GatewayQuestion and Answers e: sales@patton-inalp.com t: +41 (31) 985 25 25 f: +41 (31) 985 25 26 54

Remote offices survival

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