The Cisco Certified Network Associate Voice (CCNA Voice) validates associate-level knowledge and skills required to administer a voice network. The Cisco CCNA Voice certification confirms that the required skill set for specialized job roles in voice technologies such as voice technologies administrator, voice engineer, and voice manager. It validates skills in VoIP technologies such as IP PBX, IP telephony, handset, call control, and voice-mail solutions.
Nowadays it is rare to find a company which does not use VoIP. Businesses around the globe are realizing the efficiency of combining their telephone and data systems in one unified system. As a CCNA Voice certified candidate, you can handle their basic routing and switching functions (CCNA R&S) along with voice network.