© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Deployment of a Dial Plan on Cisco Unified CallManager Release 5.0 Configuring Voice Gateways

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v The Gateway in an IP Telephony Infrastructure Converts IP voice packets into analog or digital voice signals Connects IP voice network to analog or digital trunks or individual stations Regional Center Headquarters Voice Gateway PSTN

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Analog and Digital Gateways FXO PRI, BRI, T1 CAS, E1 Analog Trunk Digital Trunk FXS PSTN

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Core Gateway Requirements DTMF relay: –Signaling method that uses specific pairs of frequencies within the voice band for signals Supplementary services: –Provide user functions, such as hold, transfer, and conferencing Cisco Unified CallManager redundancy: –A secondary Cisco Unified CallManager to pick up control of all gateways initially managed by the primary Cisco Unified CallManager Call survivability: –The voice conversation between two IP endpoints is generally preserved when the Cisco Unified CallManager that the endpoint is registered to is no longer reachable.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Gateway Communication Overview H.323: Peer-to-peer, more complex configuration on gateway because the gateway must maintain the dial plan and route pattern. SIP: Developed by IETF for multimedia calls over IP. Works in client-server relationships as well as in peer-to-peer. Uses requests and responses to establish, maintain, and terminate calls (or sessions). MGCP: Client-server, simplified configuration, in which Cisco Unified CallManager maintains the dial plan and route pattern. SCCP (Skinny): Client-server, simplified configuration, in which Cisco Unified CallManager maintains the dial plan and route pattern.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring MGCP Gateways in Cisco Unified CallManager FXO VIC 1/1/1 Cisco Unified CallManager Release 5.0 PSTNGW Cisco 2800 PSTN gateway controlled by the MGCP call agent – Cisco Unified CallManager MGCP PSTN

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring MGCP Gateways in Cisco Unified CallManager: The Steps Cisco Unified CallManager MGCP gateway configuration steps: 1. Add an MGCP gateway. 2. Add a module in a slot. 3. Add VICs to the module. 4. Configure VICs. Cisco IOS MGCP gateway configuration steps: 1. Specify the configuration server. 2. Enable a configuration download.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Add MGCP Gateway Click Add New. Choose Device > Gateway. 1 2

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Add MGCP Gateway (Cont.) Choose the appropriate gateway type. 3 Click Next. 4

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Add Module Enter MGCP domain name, description, and choose Cisco Unified CallManager group. 5 Select the appropriate module type installed in the slot. 6 Click Save. 7

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Add VIC Click Save 9 Select the appropriate VIC type installed in the Module 8

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Configure the VIC Click on the endpoint icon. 10 1/0/01/0/11/1/01/1/1 Network Module with 2 VICS Endpoint Identifiers

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Configure the VIC (Cont.) Select the FXO port type – the analog signaling to the PSTN switch. 11 Click Next. 12

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Configure the VIC (Cont.) Select the Device Pool. 13 Uncheck Unattended Port and enter 0 in the Attendant DN* field. 14 Scroll the page down. 15

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: Configure the VIC (Cont.) Click Save. 16 Confirm the popup window by clicking OK. 17

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager MGCP Gateway: MGCP Gateway Added MGCP gateway successfully added

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco IOS MGCP Gateway Example FXO VIC 1/1/1 Cisco Unified CallManager Release5.0 PSTNGW Cisco 2800 MGCP PSTN PSTNGW#configure terminal PSTNGW(config)#mgcp PSTNGW(config)#mgcp call-agent PSTNGW(config)#ccm-manager config server PSTNGW(config)#ccm-manager config PSTNGW(config)#end

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring H.323 Gateways in Cisco Unified CallManager /1/1 Cisco Unified CallManager Release 5.0 H323GW H323GW is the PSTN gateway using H.323. H.323 DN: 2001 PSTN

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring H.323 Gateways in Cisco Unified CallManager: The Steps Cisco Unified CallManager H.323 gateway configuration steps: 1. Add an H.323 gateway. 2. Configure H.323 gateway settings. Cisco IOS H.323 gateway configuration steps: 1. Enable an H.323 gateway on an interface. 2. Configure the H.323 source IP address. 3. Configure VoIP dialpeers.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager H.323 Gateway: Add H.323 Gateway Add a new gateway to Cisco Unified CallManager. Select Device > Gateway. 1 2

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager H.323 Gateway: Add H.323 Gateway (Cont.) Select the gateway type to be the H.323 gateway. 3 Click Next. 4

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager H.323 Gateway: Configure H.323 Gateway Enter the device name, description, and the device pool. 5 Click Save. 6 Confirm the popup window by clicking OK. 7

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager H.323 Gateway: H.323 Gateway Added H.323 gateway successfully added

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco IOS H.323 Gateway Example /1/1 Cisco Unified CallManager Release 5.0 H323GW H.323 DN: 2001 PSTN H323GW#configure terminal H323GW(config)#interface fastethernet 0/0 H323GW(config-if)#h323-gateway voip interface H323GW(config-if)#h323-gateway voip bind srcaddr H323GW(config-if)#exit H323GW(config)#dial-peer voice 1 voip H323GW(config-dialpeer)#destination-pattern 2... H323GW(config-dialpeer)#session target ipv4: H323GW(config-dialpeer)#end

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v PSTN Configuring SIP Gateways in Cisco Unified CallManager /1/1 Cisco Unified CallManager Release 5.0 SIPGW A SIP Gateway is implemented using SIP Trunks. SIPGW is the local PSTN gateway using Basic SIP. SIP-PSTN-GW Trunk DN: 2001

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring SIP Gateways in Cisco Unified CallManager: The Steps Cisco Unified CallManager SIP gateway configuration steps: 1. Add a SIP Trunk. 2. Configure a SIP Trunk. Basic Cisco IOS SIP gateway configuration steps: 1. Configure VoIP dial peers. 2. Configure SIP user-agent retry parameters.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager SIP Gateway: Add SIP Trunk Click Add New. 2 Choose Device > Trunk. 1

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager SIP Gateway: Add SIP Trunk (Cont.) Choose SIP Trunk as the trunk type. 3 Click Next. 4

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager SIP Gateway: Configure SIP Trunk Enter the unique SIP trunk name and description. 5 Choose the Device Pool. 6 Scroll to the end of the page. 7

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager SIP Gateway: Configure SIP Trunk (Cont.) Enter the SIP gateway IP address (or name). 8 Choose the SIP Trunk Security Profile. Choose the SIP Profile 9 10 Confirm the popup window by clicking OK. Click Save

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Cisco Unified CallManager SIP Gateway: SIP Trunk Added SIP trunk (gateway) successfully added

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Configuring Basic Cisco IOS SIP Gateway Example /1/1 Cisco Unified CallManager 5.0 SIPGW SIP DN: 2001 SIPGW#configure terminal SIPGW(config)#sip-ua SIPGW(config-sip-ua)#retry invite 10 SIPGW(config-sip-ua)#retry response 10 SIPGW(config-sip-ua)#exit SIPGW(config)#dial-peer voice 1 voip SIPGW(config-dialpeer)#session protocol sipv2 SIPGW(config-dialpeer)#destination-pattern 2... SIPGW(config-dialpeer)#session target ipv4: SIPGW(config-dialpeer)#end PSTN

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Verifying MGCP Gateways show ccm-manager Router# Displays a list of Cisco Unified CallManager servers, their current status and availability. Router#show ccm-manager MGCP Domain Name: Router1 Priority Status Host ============================================================ Primary Registered First Backup Backup polling Second Backup None …

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Verifying MGCP Gateways (Cont.) show mgcp endpoint Router# Displays MGCP-controlled interfaces and channels with their state. Router#show mgcp endpoint Interface T1 1/0 ENDPOINT-NAME V-PORT SIG-TYPE ADMIN 0:1 fxs-gs up 0:1 fxs-gs up 0:1 fxs-gs up 0:1 fxs-gs up 0:1 fxs-gs up 0:1 fxs-gs up …

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Verifying MGCP Gateways (Cont.) show isdn status Router# Displays ISDN status if ISDN D channel is backhauled, using MGCP, to the Cisco Unified CallManager. Router#show isdn status Global ISDN Switchtype = primary-ni %Q.931 is backhauled to CCM MANAGER 0x0003 on DSL 0. Layer 3 output may not apply ISDN Serial1/0:23 interface dsl 0, interface ISDN Switchtype = primary-ni L2 Protocol = Q.921 0x0000 L3 Protocol(s) = CCM MANAGER 0x0003 Layer 1 Status: ACTIVE Layer 2 Status: TEI = 0, Ces = 1, SAPI = 0, State = MULTIPLE_FRAME_ESTABLISHED Layer 3 Status: 0 Active Layer 3 Call(s) … ISDN L2 is up ISDN D channel backhauled to Cisco Unified CallManager

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Verifying SIP Gateways show sip-ua status Router# Displays the status of the SIP user-agent on the SIP gateway. Router#show sip-ua status SIP User Agent Status SIP User Agent for UDP : ENABLED SIP User Agent for TCP : ENABLED SIP User Agent bind status(signaling): DISABLED SIP User Agent bind status(media): DISABLED SIP max-forwards : 6 SIP DNS SRV version: 1 (rfc 2052) Redirection (3xx) message handling: ENABLED

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v Summary Gateways are used to connect Cisco Unified CallManager to analog or digital voice networks, such as PSTN. Major core gateway requirements are: DTMF relay, supplementary services, redundancy, and call survivability. Cisco Unified CallManager supports MGCP, H.323, SCCP, and SIP protocols. Gateways are integrated with Cisco Unified CallManager by configuring Cisco Unified CallManager and the gateway itself for one of supported protocol options. Gateway debug and show commands can be used to verify if the gateway was properly integrated with Cisco Unified CallManager.

© 2006 Cisco Systems, Inc. All rights reserved. CIPT1 v