The Implementing Cisco Unified Communications Voice over IP and QoS v8.0 exam (642-437 CVOICE v8.0) is ideal for individuals who have experience implementing and operating gateways and gatekeepers. Individuals who have experience with such products as Cisco Unified Border Element, Cisco Unified Communications Manager Express, and QoS in a voice network architecture are prime candidates to take this exam and earn the CCNP Voice certification from Cisco.
The exam itself, offered through Pearson VUE in English of Japanese, consists of 60 to 70 multiple questions. Participants will receive 90 minutes to complete it. The recommended training course for this exam is Implementing Cisco Unified Communications Voice over IP and QoS v8.0 (CVOICE v8.0).
The 642-437 exam is divided into multiple sections. Two sections that candidates must know are the components and operation of a VoIP call and configuration of the DiffServ QoS model. Other topics that are important to know are dial plans and implementation of a gateway, Cisco Unified Border Element, and Cisco Unified Communications Manager Express.
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