Email
me at:
|
Anurag Vohra Architect
ObjectiveTo
work, learn and contribute in the field of next generation wireless networks.
EducationJul
1994 – May 1998
Bachelor
of Technology in Electrical Engineering
Indian
Institute Of Technology, Delhi (IIT D) CGPA: 7.0
SkillsDomain:
UMTS
core network, Softswitch, MSC Server, CSCF
Programming:
Proeficient
in Java (Specialize in high performance Java )
Knowledge
of C/C++.
Protocols:Worked
in SIP, MAP, MGCP, H.323, CMCP, and LDAP
Knowledge
of RANAP, Gb, MEGACO, ISUP, SS7
Project Details:Project
- Xybridge Mobility Manager for UMTS core network
Zhone
Technologies formerly Xybridge Technologies, Richardson, TX
Oct-2000
– June 2001
The
core network or MSC replacement solution by Xybridge consists of a Mobility
Manager, Call Manager, Feature Server and a Signaling Gateway. Mobility
Manager handles all mobile related transactions like location update, call
delivery, handover etc. making the Call Manager and Feature server access
independent. The current objective was to give a base for CS, which is
Release 99/4 compliant. The Release 2000 / 5 architecture and PS was studied
to make sure for a smooth transition for an all IP core network.
I
was part of the initial core team, which made the Xybridge Core network
solution architecture. My current responsibility included designing and
implementing the layer 3 call control handling in the mobility manager,
the SIP Layer, Connection management of access gateway, and the Gateway
MSC functionality.
Project – Scalability Solution, Performance Improvement and System Engineering of the Xybridge Call Manager June
2000 – September 2000
The
Xybridge Call Manager or SoftSwitch is entirely written in Java. My responsibility
as Technical Leader with a team of three was two fold. One to define, design
and implement a scalability in the softswitch and secondly determine any
bottlenecks in code or design, correct it and measure the capacity of the
switch in terms of BHCA and max calls supported. During this period, the
capacity improved several times the original along with memory usage in
the system brought down to a fraction of the original. Profiling tool Optimizeit
was extensively used to identify the bottlenecks. This was a great opportunity
to learn all the modules of the call manager, as well as learning writing
high performance Java code.
Java Advanced Intelligent Networking Integration with Xybridge Call Manager March 2000 - May 2000 The
open service interface of the Xybridge was integrated to give a Java Call
Control (JCC) API. A demo of the product was given in Supercomm 2000 with
feature server by Telcordia over JAIN APIs and Xybridge Call Manager.
Customer Training and Patent Filing February
2000
I
prepared and gave product overview training to Ascom, our enterprise customer
in Switzerland. I was also involved in preparing patent applications.
Flexible Dial Plan and Universal Services Framework October
1999 - January 2000
Role:
Technical Lead
Leading
a team of four developers, designed and implemented a flexible dial plan,
which is a patent pending way for doing address translation and least cost
routing for a geographically distributed switch. Designed the framework
of the universal service controller to simultaneously provide class 4 and
class 5 feature set.
Charging or Class IV Services June
1999 - September 1999
Role:Module
Lead
I
was involved in defining product requirements for the General Release 2.0
and design review for all the new modules. There were three modules – Announcement
server, using MGCP's Record package, Call Agent enhancements and a Charging
Service Controller. I was module lead for the charging service controller
leading a team of three.
Development of Open Service Interface to Xybridge Call Agent December
1998 - May1999
Developed
an open Call Machine Control Protocol (CMCP) SDK, which allows 3rd party
service creation and integration with any 3rd party . The open interface
was developed conforming to IN-CS2 model.
Developed
LDAP based user authentication and address translation service controllers
demonstrating the first ever distributed call control and feature logic.
Developed
the Route Manager with LCR functionality for Xybridge Call Agent. This
was also implemented using an LDAP server.
DPNSS Support on Nortel's Norstar Key Telephone Switch. June
1998 - November 1998
Organization:Silicon
Automation Systems Pvt. Limited
Client:Nortel
Networks and British Telecom
Developed
"Call Back When Free" and "Call Back When Next Used" supplementary features
over DPNSS protocol for Nortel's Norstar KTS. Studied for enabling the
Norstar KTS for supporting H323 based IP phones.
Summer Training: Ten
weeks 14th May '97 - 18th July '97
Organization:
Electronics & Radar Development Establishment (LRDE), DRDO, Bangalore.
Project:
The project was to develop the distributed packet radio network for the
Indian Army. The part given to me was to make the front end of its simulation
software using X-windows programming.
PersonalDate
of Birth: June 22, 1976
Gender:
Male
Marital
Status: Single
Interests:
Strengths:Quick
learner, communication skills, self-driven, taking initiative, ability
to work long hours.
|
