About the Technical Reviewers
Danelle Au is a product manager in the Access Technology Group at Cisco Systems. She defines the strategy and roadmap and drives product requirements in the areas of IP communications. She was involved in the product management and marketing activities for the introduction of the Cisco CallManager Express (CME) and Survivable Remote Site Telephony products. She is currently responsible for IP Communications security, the voice gateway module portfolio, and DSP technologies on the Cisco Integrated Services Routers. Danelle is a co-author of the Cisco IP Communications Express book (ISBN 158705180X) and holds an M.S. in Electrical Engineering from University of California, Berkeley.
Christina Hattingh is a member of the technical staff in the branch office IP Communications group at Cisco Systems. The products in this group, including the Cisco 2600, 2800, 3600, 3700, and 3800 series platforms, were some of the first Cisco platforms to converge voice and data by offering PSTN and PBX voice gateway interfaces and critical QoS features on WAN interfaces, while more recently integrating numerous IP network voice services, call control, and application elements such as conferencing/transcoding services, RSVP Agent, IP-IP gateway, Cisco CME, and Cisco UE into the router-based platform. In this role, she helps guide development projects, trains Cisco sales staff and Cisco resale partners on new router-based voice technologies, and advises customers on voice network deployment and design.
Sibrina Shafique, CCIE No. 10871, is a member of the technical marketing team that works on the Cisco voice gateways. She works closely with engineering teams to guide voice-related projects and sales staff to provide training and technical assistance. In her previous role as a technical support engineer her task was to analyze, configure, and troubleshoot complex product and network problems on customer networks on all Cisco Voice gateways and their interaction with PSTN, third-party PBX systems. She has end-to-end understanding of voice networks and has assisted with large voice deployments.
Lingling Zhang has been working in Cisco Systems as Product Manager for five years. The primary focus of her role is to lead definition and development of Voice over IP products and services in the portfolio of Cisco access routers and develop Cisco competitive strategy and positioning in the low-end access market. Before joining Cisco, Lingling Zhang worked in China Network World as a reporter and editor for two years.
Brandon Ta, CCIE No. 2494, is a Consulting Systems Engineer for the Enterprise East Voice Group at Cisco Systems, Inc. Brandon worked for Cisco Systems, Inc. for nine years and has been focusing on unified communication for the last six years. He has worked on some of larger IP Telephony designs and networks that span from 16,000 to more than 100,000 Cisco IP phones. Beside the CISSP certification and a handful of other technical certifications, Brandon has four CCIEs and was the first in the world to receive three CCIEs back in 2000, where he was featured in Cisco Packet magazine. Brandon has presented at the Cisco IP Telecommunication User Group (CIPTUG) conference as well as the Cisco Networkers Conference on Unified Communication Technology.