IP Office IPv6 -------------------Development prime for IPv6 support on the IP Office. Team leader for implementation of IPv6. Implemented handling of the IPv6 configuration, SIP signaling, call signaling changes, as well as the TCP API to the Linux layer.SIP phones----------------- SIP desk phones (11xx/12xx, E129, B179, Scopia Radvison, D100, Avaya 9608) support in IP Office and Cloud IP Office.Radvision Scopia XT5000------------------------------------ Designed and implemented support for Binary Floor Control Protocol (BFCP) and Far End Camera Control (FECC) in IP Office SIP call signaling.Wireless phone solution- D100 Base Station----------------------------------------------------------------Technical Prime and software development team leader for SIP wireless phone solution for the small to medium business office. Primary technical contact for the third party base station provider located in Japan, providing technical guidance to their designers regarding SIP, configuration and telephony features implementation.11xx/12xx Nortel SIP telephony features---------------------------------------------------------- Team lead architecture, design and development of software infrastructure to allow for easy implementation of the telephony features such as Conference, Voice Mail Access, Call Forward, DND, Call pickup for BLF, Page etc.IP Office, BCM and IP Phones Interoperability------------------------------------------------------------------Designed, built and configured test network to allow interoperability testing between 1200 SIP phones and Avaya IP Office Call Server. Identified deficiencies in SIP phones inter-working with the IP Office and provided recommendations for solutions.Designed network configuration for the tele-worker secure IP phone connection using IPSec VPN tunnel terminating on BCM50.

Nortel IP phones 1120/1140/1150 IpSec VPN client-------------------------------------------------------------------------Developed system architecture to incorporate VPN client into the IP phone firmware.Worked with the third party IpSec software supplier to identify custom requirements to satisfy Contivity protocol and incorporated the third party IpSec protocol software into phone firmware.Designed and implemented core functionality of the IPSec VPN client according to the industry standards for IPSec technology to authenticate, generate key material, deliver encrypted traffic, and manage operation of VPN connection to the corporate network.Developed customer documentation and training package for the technical knowledge transfer to the support team.

Nortel BCM small and medium enterprise portfolio (BCM50, BCM300, BCM450)------------------------------------------------------------------------------------------------------------------- Defined content of the Business Communication Manager (BCM) Release 5 for the data services subsystem, combining traditional telephony, IP telephony and data on the same platform.Implemented DHCP server with a vendor specific options to allow automatic configuration of Nortel IP phones, incorporating open source daemon distributed by the Internet System Consortium (ISC).

Carrier Data Network(CDN) Passport Layer 3 services-------------------------------------------------------------------------------Responsible for Data Model (CLI) architecture for Passport 7K, 15K, 20K.Delivered design to support the DiffServ feature on the new Passport FP (MS3 card) and support for IP Quality of Service (Cos) and Policing features on Passport 7k/15K product.

Carrier Data Networks (CDN) Passport ATM Networking Responsible for upgrade to UNI 4.0 and ILMI 4.0 on Nortel's Passport 7K and 15K platforms.

CDN Passport Applications----------------------------------------- Delivered the Q.50 Signaling Support and Voice Networking Call Server (VNCS) for Passport voice features.Team leader for a Remote Server Access which allows remote access to the VNCS services.

Data Packet Network (DPN) ----------------------------------------- Implementation and/or support: X.224 Lottery Server, Virtual Circuit Handler, Broadcast Server, Global Mnemonic Server, Interactive Terminal Interface ( X.3, X.28, X29), X25 Service, Hunt Group, Redirection Server on DPN switches.