Cox SIP Trunking Configuration Guide - Cisco Unified .
Application NoteCox SIP Trunking:Cisco Unified Communications Manager 11.0.1 with Cisco UnifiedBorder Element (CUBE 11.1.0) on ISR 4K [IOS-XE 3.16] using SIPNovember 11, 2015 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 1 of 57
Table of ContentsIntroduction . 4Network Topology . 5System Components . 6Hardware Components . 6Software Requirements . 6Features Supported . 6Features Not Supported . 6Caveats . 6Configuration . 7Configuring the Cisco Unified Border Element. 7Network Interface . 7Global CUBE Settings . 7Media Passing Through CUBE (media flow-through vs. media flow-around) . 8Codecs . 8Dial Peer . 8Call Flow. 11Configuring the Cisco Unified Communications Manager . 19Cisco Call Manager Service Parameters . 19Offnet Calls via Cox SIP Trunk . 39Dial Plan . 50Acronyms . 56Important Information . 57Appendix A: Test Results . 57 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 2 of 57
Table of FiguresFigure 1: Network Topology . 5Figure 2: Service Parameters . 20Figure 3: Service Parameters - Cont. . 21Figure 4: Service Parameters - Cont. . 22Figure 5: Service Parameters - Cont. . 23Figure 6: Service Parameters - Cont. . 24Figure 7: Service Parameters - Cont. . 25Figure 8: Service Parameters - Cont. . 26Figure 9: Service Parameters - Cont. . 27Figure 10: Service Parameters - Cont. . 28Figure 11: Service Parameters - Cont. . 29Figure 12: Service Parameters - Cont. . 30Figure 13: Service Parameters - Cont. . 31Figure 14: Service Parameters - Cont. . 32Figure 15: Service Parameters - Cont. . 33Figure 16: Service Parameters - Cont. . 34Figure 17: Service Parameters - Cont. . 35Figure 18: Service Parameters - Cont. . 36Figure 19: Service Parameters - Cont. . 37Figure 20: Service Parameters - Cont. . 38Figure 21: SIP Trunk Security Profile . 39Figure 22: SIP Profile. 40Figure 23: SIP Profile - Cont. . 42Figure 24: SIP Profile - Cont. . 43Figure 25: SIP Profile – Cont. . 44Figure 26: SIP Trunk List . 45Figure 27: SIP Trunk to CUBE . 46Figure 28: SIP Trunk to CUBE - Cont. . 47Figure 29: SIP Trunk to CUBE - Cont. . 48Figure 30: SIP Trunk to CUBE - Cont. . 49Figure 31: Route Patterns . 50Figure 32: Route Patterns for Voice . 51Figure 33: Route Patterns for Voice - Cont. 52Figure 34: Route Patterns for Unity. 52Figure 35: Route Patterns for Unity - Cont. . 53Figure 36: Route Patterns for Fax . 54Figure 37: Route Patterns for Fax – Cont. . 55 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 3 of 57
IntroductionService Providers today, such as Cox, are offering alternative methods to connect to the PSTN via their IPnetwork. Most of these services utilize SIP as the primary signaling method and centralized IP to TDM POPgateways to provide on-net and off-net services.Cox is a service provider that allows connection to the PSTN and may offer the end customer a viablealternative to traditional PSTN connectivity. A demarcation device between these services and customerowned services is recommended. As an intermediary device between Cisco Unified CommunicationsManager and Cox Session Border Controller (EdgeMarc), Cisco Unified Border Element (CUBE) ISR 15.5(3)Scan be used. The Cisco Unified Border Element ISR 15.5(3)S provides demarcation, security, interworking andsession control services for Cisco Unified Communications Manager 11.0.1 connected to Cox IP network.This document assumes the reader is knowledgeable with the terminology and configuration of CUCM (CiscoUnified Communications Manager). Only configuration settings specifically required for Cox interoperabilityare presented. Feature configuration, and most importantly the dial plan, are customer specific and need anindividual approach. This application note describes how to configure a Cisco Unified Communications Manager (Cisco UCM)11.0.1 and Cisco Unified Border Element (CUBE 11.1.0) on ISR 4K [IOS-XE3.16] for connectivity to CoxSIP trunking service. The deployment model covered in this application note is CPE (Cisco UCM 11.0.1)to PSTN (Cox). Testing was performed in accordance to Cox generic SIP trunking test methodology and amongfeatures verified were – basic calls, DTMF transport, Music on Hold, Semi-attendant and attendanttransfers, call forward, conferences, and interoperability with Cisco Unity Connection The CUCM configuration detailed in this document is based on a lab environment with a simple dialplan used to ensure proper interoperability between Cox SIP network and Cisco UnifiedCommunications. The configuration described in this document details the important configurationsettings to have enabled for interoperability to be successful and care must be taken by the networkadministrator deploying Cisco UCM to interoperate to Cox SIP trunking network.This application note does not cover the use of Calling Search Spaces (CSS) or partitions on Cisco UnifiedCommunications Manager. To understand and learn how to apply CSS and partitions refer to the cisco.comlink below:http://www.cisco.com/en/US/docs/voice ip This application note does not cover the configuration of the EdgeMarc E-SBC. The Cox E-SBC is theEdgewater Networks EdgeMarc appliance. The EdgeMarc is the service demarcation point betweencustomer’s LAN network and Cox’s WAN network and provides firewall/NAT traversal, B2BUA and SIPApplication-level gateway. The EdgeMarc has diverse routes to a primary and secondary Acme SBC. For moreinfo regarding the EdgeMarc E-SBC visit www.edgewaternetworks.com. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 4 of 57
Network TopologyBasic Call SetupCustomer PremiseCoxSIP Call ServerCox E-SBCLAN IP: 10.70.52.3Net Mask: 0.70.52.20CUCM 11.0.1IP:10.80.13.2Fax gatewayIP:10.80.22.7CoxNetworkSession BorderController (SBC)10.80.13.0/24SCCPSIPUnity e 1: Network Topology 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 5 of 57PSTN
System ComponentsHardware Components Cisco UCM and Unity Connection run on VMwareISR G2 2901/K9 router as Fax Gateway ISR 4321/K9 router as CUBE IP phones 7975(SIP) and 7965(SCCP)( please consult “Features not supported” for restrictions)Software Requirements Cisco Unified Communications Manager 11.0.1IOS-XE 3.16 for Cisco Unified Border Element on ISR4321 IOS 15.4(3)M1 for Fax Gateways on ISR2901 Cisco Unity Connection 11.0.1Features Supported Incoming and outgoing off-net calls using G711Ulaw (Cox only offer G711Ulaw) with 20mspacketization Call hold Call transfer (Semi-Attendant and Attendant) Call conference Call forward (all, busy, no answer) Calling line (number) identification presentation (CLIP) Calling line (number) identification restriction (CLIR) DTMF (RFC2833) Media flow-through on CUBE Fax G.711 pass-throughFeatures Not Supported Outbound SIP REFER with Replaces. Cisco UCM does not currently support generation of an outboundSIP REFER with Replaces Cisco IP phones used in this test do not support Blind Transfer, only Semi-attendant and Attendanttransfers were testedCaveats CUBE High Availability (HA) was not tested in this setup due to lack of hardware The caller ID of the DUT is being seen instead of the originator of the call that is transferred orforwarded Defect ID: PAI/PPI support for INVITE/UPDATE Request/Response in CUBE - CSCua03687 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 6 of 57
ConfigurationConfiguring the Cisco Unified Border ElementNetwork InterfaceConfigure Ethernet IP address and sub interface. The IP address and VLAN encapsulation used are forillustration purposes only and the actual IP address can vary. For SIP trunks, two IP addresses must beconfigured—LAN and WAN.interface GigabitEthernet0/0/0description COX CUBE1 LANip address 10.80.13.20 255.255.255.0negotiation auto!interface GigabitEthernet0/0/1description COX CUBE1 WANip address 10.70.52.20 255.255.255.0negotiation autoGlobal CUBE SettingsIn order to enable CUBE IP2IP gateway functionality, following command has to be entered:voice service voipno ip address trusted authenticateaddress-hidingmode border-elementallow-connections sip to sipno supplementary-service sip handle-replacesfax protocol pass-through g711ulawsipsession refreshasserted-id pai 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 7 of 57
early-offer forcedmidcall-signaling passthruprivacy-policy passthruprivacy-policy send-alwaysg729 ctions sip to sipAllow IP2IP connections between two SIP call legsfax protocolSpecifies the fax protocolasserted-idSpecifies the type of privacy header in the outgoing SIP requests and responsemessagesearly-offer forcedEnables SIP Delayed-Offer to Early-Offer globallymidcall-signaling passthruPasses SIP messages from one IP leg to another IP legMedia Passing Through CUBE (media flow-through vs. media flow-around)Default CUBE configuration enables CUBE to work in flow-through mode (this test use flow-through mode). Inorder to enable flow-around mode, please perform the following actions:voice service voipmedia flow-aroundCodecsCox offer only G.711ulaw codec for voice call, it allows codecs other than G.711ulaw but will only acceptG.711ulaw.For customers using G.711 ulaw codec:voice class codec 1codec preference 1 g711ulawDial PeerCUCM uses dial-peer to route the call based on the digit to route the call accordingly.dial-peer voice 10 voipdescription "Outgoing To edgemark"-edgemark facing side 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 8 of 57
huntstopdestination-pattern [0-9]Tno modem passthroughsession protocol sipv2session target ipv4:10.70.52.3:5060voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip early-offer forcedvoice-class sip bind control source-interface GigabitEthernet0/0/1voice-class sip bind media source-interface GigabitEthernet0/0/1dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vad!dial-peer voice 11 voipdescription "Outgoing To edgemark .IP PBX facing side"no modem passthroughsession protocol sipv2incoming called-number [0-9]voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip bind control source-interface GigabitEthernet0/0/0 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 9 of 57
voice-class sip bind media source-interface GigabitEthernet0/0/0dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vad!dial-peer voice 20 voipdescription " Incoming edgemark to IP-PBX - IP-PBX facing side "huntstopdestination-pattern 402502.no modem passthroughsession protocol sipv2session target ipv4:10.80.13.2:5060voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip early-offer forcedvoice-class sip bind control source-interface GigabitEthernet0/0/0voice-class sip bind media source-interface GigabitEthernet0/0/0dtmf-relay rtp-ntefax-relay ecm disablefax-relay sg3-to-g3fax rate disablefax nsf 000000fax protocol pass-through g711ulawno vad 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 10 of 57
!dial-peer voice 21 voipdescription " Incoming edgemark to IP-PBX . AT&T facing side "huntstopno modem passthroughsession protocol sipv2incoming called-number 40250.voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip bind control source-interface GigabitEthernet0/0/1voice-class sip bind media source-interface GigabitEthernet0/0/1dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vadCall FlowIn the sample configuration presented here, CUCM is provisioned with four-digit directory numberscorresponding to the last four DID digits. No digit manipulation is performed on the CUBE.For incoming PSTN calls, the CUBE presents the full ten-digit DID number to CUCM. The CUCM TranslationPattern strips all but the last four digits and routes the call based on those digits. Voice calls are routed to IPphones; fax calls are routed via a 4-digit route pattern to a SIP trunk that terminates on the fax gatewayCPE callers make outbound PSTN calls by dialing a “9” prefix followed by the destination number. Foroutbound fax calls from the analog fax endpoint, fax gateway sends to Cisco UCM the DID with leading accesscode “9”. A “9.@” route pattern strips the prefix and routes the call with the remaining digits via a SIP trunkterminating on the CUBE for voice call or outbound fax. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 11 of 57
Configuration ExampleThe following configuration snippet contains a sample configuration of Cisco Unified Border Element with allparameters mentioned previously.COX CUBE1#sh running-configBuilding configuration.Current configuration : 7526 bytes!version 15.5service timestamps debug datetime msecservice timestamps log datetime msecno platform punt-keepalive disable-kernel-core!hostname COX CUBE1!boot-start-markerboot system PA.binboot system xt.SPA.binboot-end-marker!!vrf definition Mgmt-intf!address-family ipv4exit-address-family!address-family ipv6exit-address-family 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 12 of 57
!enable secret 5 1 4Gfa O/1WQEcuut.YXLcn3acUP1enable password tekV1z10n!no aaa new-model!!subscriber templating!multilink bundle-name authenticated!!voice service voipno ip address trusted authenticateaddress-hidingmode border-elementallow-connections sip to sipno supplementary-service sip handle-replacesfax protocol pass-through g711ulawsipsession refreshasserted-id paiearly-offer forcedmidcall-signaling passthruprivacy-policy passthruprivacy-policy send-alwaysg729 annexb-all! 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 13 of 57
voice class codec 1codec preference 1 g711ulaw!voice class codec 2codec preference 1 g711ulawcodec preference 2 g729r8!!license udi pid ISR4321/K9 sn FDO19220MQ8license boot level appxk9license boot level uck9!spanning-tree extend system-id!redundancymode none!vlan internal allocation policy ascending!!interface GigabitEthernet0/0/0description COX CUBE1 LANip address 10.80.13.20 255.255.255.0negotiation auto!interface GigabitEthernet0/0/1description COX CUBE1 WANip address 10.70.52.20 255.255.255.0 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 14 of 57
negotiation auto!interface GigabitEthernet0vrf forwarding Mgmt-intfno ip addressnegotiation auto!interface Vlan1no ip addressshutdown!ip forward-protocol ndno ip http serverno ip http secure-serverip tftp source-interface GigabitEthernet0ip route 0.0.0.0 0.0.0.0 10.70.52.1ip route 172.16.0.0 255.255.0.0 10.80.13.1!!control-plane!!mgcp behavior rsip-range tgcp-onlymgcp behavior comedia-role nonemgcp behavior comedia-check-media-src disablemgcp behavior comedia-sdp-force disable!mgcp profile default 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 15 of 57
!!dial-peer voice 10 voipdescription "Outgoing To edgemark"-edgemark facing sidehuntstopdestination-pattern [0-9]Tno modem passthroughsession protocol sipv2session target ipv4:10.70.52.3:5060voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip early-offer forcedvoice-class sip bind control source-interface GigabitEthernet0/0/1voice-class sip bind media source-interface GigabitEthernet0/0/1dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vad!dial-peer voice 11 voipdescription "Outgoing To edgemark .IP PBX facing side"no modem passthroughsession protocol sipv2incoming called-number [0-9]voice-class codec 1 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 16 of 57
voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip bind control source-interface GigabitEthernet0/0/0voice-class sip bind media source-interface GigabitEthernet0/0/0dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vad!dial-peer voice 20 voipdescription " Incoming edgemark to IP-PBX - IP-PBX facing side "huntstopdestination-pattern 402502.no modem passthroughsession protocol sipv2session target ipv4:10.80.13.2:5060voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip early-offer forcedvoice-class sip bind control source-interface GigabitEthernet0/0/0voice-class sip bind media source-interface GigabitEthernet0/0/0dtmf-relay rtp-ntefax-relay ecm disablefax-relay sg3-to-g3 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 17 of 57
fax rate disablefax nsf 000000fax protocol pass-through g711ulawno vad!dial-peer voice 21 voipdescription " Incoming edgemark to IP-PBX . AT&T facing side "huntstopno modem passthroughsession protocol sipv2incoming called-number 40250.voice-class codec 1voice-class sip asymmetric payload fullvoice-class sip asserted-id paivoice-class sip privacy-policy passthruvoice-class sip bind control source-interface GigabitEthernet0/0/1voice-class sip bind media source-interface GigabitEthernet0/0/1dtmf-relay rtp-ntefax-relay ecm disablefax rate disablefax protocol pass-through g711ulawno vad!!sip-uacredentials username 4023159990 password 7 15465B5E577B7E7D716A65 realm 10.70.52.3authentication username 4023159990 password 7 01475656085A535678151Eregistrar ipv4:10.70.52.3 expires 3600 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 18 of 57
!!line con 0stopbits 1line aux 0stopbits 1line vty 0 4password tekV1z10nlogintransport input telnet ssh!!EndConfiguring the Cisco Unified Communications ManagerCisco Call Manager Service Parameters1. Navigate to System Service Parameters2. Set Duplex Streaming: enabled true 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 19 of 57
Figure 2: Service Parameters 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 20 of 57
Figure 3: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 21 of 57
Figure 4: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 22 of 57
Figure 5: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 23 of 57
Figure 6: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 24 of 57
Figure 7: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 25 of 57
Figure 8: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 26 of 57
Figure 9: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 27 of 57
Figure 10: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved.Important notices, privacy statements, and trademarks of Cisco Systems, Inc. can be found on cisco.comPage 28 of 57
Figure 11: Service Parameters - Cont. 2015 Cisco Systems, Inc. All rights reserved
11.0.1 and Cisco Unified Border Element (CUBE 11.1.0) on ISR 4K [IOS-XE3.16] for connectivity to Cox SIP trunking service. The deployment model covered in this application note is CPE (Cisco UCM 11.0.1) to PSTN (Cox). Testing was performed in accordance to Cox
C O N T E N T S Configuration of SIP Trunking for PSTN Access SIP-to-SIP 1 Finding Feature Information 1 Configuration of SIP Trunking for PSTN Access SIP-to-SIP Features 1 Configuring SIP Registration Proxy on Cisco UBE 3 Finding Feature Information 3 Registration Pass-Through Modes 4 End-to-End Mode 4 Peer-to-Peer Mode 5 Registration in Different Registrar Modes 7
SIP SIP phones Blustar 8000i NA SIP SIP phones 9112i, 9133i, 480i Not Supported SIP SIP phones 673xi ( A673xi), 675xi ( A675xi) NA SIP SIP phones 6735i, 6737i ( A6735i, A6737i) NA SIP SIP phones 6739i NA SIP SIP phones 6863i, 6865i, 6867i NA SIP MiVoice Conference phone (UC360
SIP Trunking service but does not support a "Qwest Pull Down" menu. This document details the topology and supporting configurations for VARs and customers who wish to install and operate the UC500 with SIP Trunking service. This document focuses mostly on the configuration of SIP Trunking parameters and does not focus on every feature of .
How to Guide: SIP Trunking Configuration using the SIP Trunks page 4 2.2 The SIP Trunk Page The SIP Trunk pages are found under SIP Trunks. Several SIP Trunk pages may be defined if you have several PBXs or Trunk Services. You need to purchase Additional Trunk Group licensees to get more than one SIP Trunk page. Details are found below. s d he Tru
Note: For SIP Trunking mode connection, you don‟t need to setup inbound routes for any side. 1.1 MyPBX Configuration Step1: Setup SIP Trunking in MyPBX, connect to Elastix. Basic Trunks Add Service Provider. Figure 1-1 Create a SIP Trunking in MyPBX After creating SIP Trunking, we can check the status of this trunk, it should be OK(green).
How To Guide: SIP Trunking Configuration Using the SIP Trunk Page 6(19) 2.2 The SIP Trunk Page The SIP Trunk pages are found under SIP Trunks. Several SIP Trunk pages may be defined if you have several PBXs or Trunk Services. You need to purchase Additional Trunk Group licensees to get more than one SIP Trunk page. Details are found below. s d he n
2.6 SIP trunking - the stepping stone to higher productivity 5 3 SIP trunking infrastructure 6 3.1 The PBX component 6 3.2 The enterprise edge component 8 3.3 The service provider component 10 4 Interoperability 11 4.1 SIP Standards 11 4.2 SIP trunking by means of SIPconnect 11 4.3 Interoperability 12 5 Security considerations for SIP .
Cox SIP Trunking: Cisco Unified Communications Manager 11.0.1 with Cisco Unified Border Element (CUBE 11.5.0) on ISR4321 [IOS-XE 3.17] using SIP April 2017 . Testing was performed in accordance to Cox generic SIP Trunking test methodology and among features verified were - basic calls, DTMF transport, Music on Hold, Semi-attendant .
