Cisco Certified Internetwork Expert – Voice
Network Engineers holding an active Cisco CCIE certification are recognized for their expert network engineering skills and mastery of Cisco products and solutions.
Cisco Certified Voice Professional
This certification validates a robust set of skills in implementing, operating, configuring, and troubleshooting a converged IP network.
Cisco IP Telephony Design Specialist
Design Specialists can design a scalable, converged network using QoS, Cisco Call Manager clustering, H.323, MGCP, or SIP signaling protocols, and assess the scope of work required to integrate legacy TDM PBXs and voice mail systems into an existing data network. 
Cisco Certified Design Associate
Mastered the skills required to design routed and switched network infrastructures and services involving LAN, WAN, and broadband access for businesses and organizations.  Ability to successfully design, implement, and support integrated voice, video, and web collaboration in a converged network. 
Cisco Certified Network Associate
Developed skill-set to install, configure, operate, and troubleshoot medium-size route and switched networks, including implementation and verification of connections to remote sites in a WAN. Hands on experience required to plan, design, implement, and operate the Cisco Unified Contact Center Express (Formerly the Cisco IPCC Express Edition).
Cisco Unity Design Specialist Cisco IP Telephony
Working knowledge of VoIP and PSTN components, technologies, and the  ability to clearly describe, install, configure and support Cisco Call Manager products in a Cisco network, including such features as security and video. 
Implementing Cisco Quality of Service
Knowledge and skills necessary to configure and troubleshoot Cisco IOS routers running Quality of Service protocols in Service Provider and Enterprise environments.
Cisco Voice Gateways & Gatekeepers
Experienced with the implementation of Cisco gateways and gatekeepers, including integration of a VoIP network to both PSTN and TDM equipment.
Cisco Rich Media Communications Specialist
Ability to successfully design, implement, and support integrated voice, video, and web collaboration in a converged network.
Cisco IP Contact Center Express Specialist
Hands on experience required to plan, design, implement, and operate the Cisco Unified Contact Center Express (Formerly the Cisco IPCC Express Edition). 
IBM Lotus Notes Certified Lotus Professional
Microsoft Certified Systems Engineer