500-444 Exam Dumps : Cisco Contact Center Enterprise Implementation and Troubleshooting

A voice gateway (VGW) is a device that connects a traditional telephony network, such as a TDM trunk, to a voice over IP (VoIP) network, such as a Cisco Unified Communications Manager (CUCM) cluster. A VGW performs signaling and media conversion between the two networks, and can also provide supplementary services, such as call routing, digit manipulation, transcoding, conferencing, and fax relay. A VGW can be a standalone device, such as a Cisco Integrated Services Router (ISR), or a software module, such as a Cisco Unified Border Element (CUBE). A CUBE is a special type of VGW that can also provide security, demarcation, and interworking functions for VoIP calls. A CUBE can be deployed between two VoIP networks, such as CUCM and a service provider SIP trunk, or between a TDM trunk and a VoIP network, in which case it acts as both a CUBE and a VGW. A CUCM is not a VGW, but a call control platform that manages VoIP endpoints, such as IP phones, and interacts with VGWs for call routing and signaling. A CUSP is a Cisco Unified SIP Proxy, which is a device that provides SIP routing and load balancing for VoIP networks. A CUSP is not a VGW, but a SIP proxy server that can work with CUCM and CUBE to optimize SIP call flows. References:

• Troubleshooting Cisco Contact Center Enterprise (CCET), Module 1: Voice Gateway Overview1
• Cisco Contact Center Enterprise Implementation and Troubleshooting (CCEIT), Module 2: Voice Gateway Configuration2
• Cisco Unified Border Element Configuration Guide3
• Cisco Unified SIP Proxy Configuration Guide4

 = In order to configure SAML SSO for PCCE, you need to create claim rules that specify the claims sent from ADFS to Cisco Identity Service as part of a successful SAML assertion. The claim rules define how to transform the incoming claims from the AD FS identity provider into the outgoing claims that are expected by the Cisco Identity Service relying party. The two claim rules that are required for PCCE are:

• sAMAccountName - Logon names maintained for backward compatibility. This claim rule maps the sAMAccountName attribute from the AD FS identity provider to the uid attribute in the outgoing claim. The uid attribute is used to identify the authenticated user in the claim sent to the applications. The sAMAccountName attribute is the logon name used to support clients and servers from a previous version of Windows1.
• E-Mail Address - For the Outgoing claim type. This claim rule maps the E-Mail-Addresses attribute from the AD FS identity provider to the mail attribute in the outgoing claim. The mail attribute is used to provide the email address of the authenticated user in the claim sent to the applications. The E-Mail-Addresses attribute is the primary email address of the user2.

The other options are not valid claim rules for PCCE. The user_principal option is not a valid attribute name in AD FS. The Unspecified option is not a valid claim type in AD FS. The uid option is not a valid attribute name in AD FS, but it is the outgoing claim type that is mapped from the sAMAccountName attribute.

References :=

• AD FS 2.0 Setup for SAML SSO Configuration Example
• Configure Single Sign-On with CUCM and AD FS 2.0
• Checklist - Creating Claim Rules for a Claims Provider Trust
• Notes on ADFS as SAML IdP for ISE User Portals

A SIP proxy server is a component of a SIP network that handles the setup and termination of calls between SIP devices. It also performs functions such as registration, authorization, network access control, and network security. Some of the functions of a SIP proxy server are:

• Centralizes dial plans: A SIP proxy server can centralize the dial plans for a SIP network, meaning that it can translate and route calls based on a unified set of rules and policies. This simplifies the administration and management of the SIP network and ensures consistent call routing across different devices and locations.
• Helps to centralize the administration and call control: A SIP proxy server can also help to centralize the administration and call control of a SIP network, meaning that it can provide a single point of contact and configuration for all the SIP devices and endpoints. This reduces the complexity and overhead of maintaining multiple SIP servers and devices and allows for easier monitoring and troubleshooting of the SIP network.

References:

• 1: What Is a SIP Proxy? How Does a SIP Server Work? - Nextiva
• 2: What is a SIP Proxy Server and How Does It Work? - ULTATEL Blog
• 3: What is SIP proxy? | Webopedia
• 4: Definition of SIP proxy | PCMag
• 5: All About SIP Proxy: What is a SIP Server? | TelNet Worldwide