Graham Saunders Email & Phone Number

Boca Raton, Fl

Irving, Texas

System Test for NSN IP Multimedia Subsystem (IMS), a SIP based platform that provides an architecture for the convergence of data, speech, fixed and mobile networks. End to end testing of IMS based customer specific solutions. Enabled fast turnaround of faults discovered via analysis of Wireshark/internal traces and test of private patches.Verified Authentication, Authorization and Accounting interfaces (AKA and EAP) of IMS core with AAA server and integrated Authentication Center.Reduced lab downtime time due to complex update and bringup by becoming expert in installation/update procedures.Verified support of IMS Zb secure interface between multiple Network Elements using Solaris IPSec implementation.Coordinated geographically separated test efforts by means of weekly synchronization teleconferences.Expedited execution of large volume of subscriber feature tests for Fixed Mobile Convergence solution by adapting expertise from EWSD development.

Boca Raton, Florida

Individual contributor and technical consultant in development of call processing and custom call software for Siemens Electronic Digital Switching System (EWSD).Reduced development time and helped ensure acceptance of EWSD Lawful Intercept solution by designing and implementing centralized mechanism to determine connection status of wiretaps (per J-STD-025) for multi-party calls.Delivered revenue generating subscriber features to customer as team leader and primary technical contributor (e.g. Call Waiting Deluxe, Call Waiting on 3 Way Calling, Music on Hold for Call Waiting).Successfully delivered new features and maintained fast turnaround of customer issues after significant reduction of development team by using overall system knowledge to learn unfamiliar subsystems.Ensured complete and accurate implementation of call processing features by acting as a technical consultant for Development group, working with Systems Engineering to clarify requirements and assess software impacts.

Canton, Massachusetts

Individual contributor and technical lead in development of call handling software in a wide area network environment (voice, data, Frame Relay, ATM).Led team of 6 engineers in executing call handling integration tests, receiving recognition for outstanding team performance.Designed and implemented software to control T1 Robbed Bit and CEPT30 (E1) channel associated signaling (CAS) which enabled the switch to interwork successfully with a customer PBX .Coordinated and facilitated cross-functional engineering groups to design an architecture for signaling and data endpoints on T1 and EIA ports.

Stuttgart Area, Germany

Developed software for private networks based on the Alcatel System 12 distributed telephone exchanges.Successfully implemented and tested signaling subsystems for delivery to German Air Force.Increased revenue to project by demonstrating additional signaling interfaces during commissioning at military base.

Developed software for a 30,000 line Telex exchange.

Developed call processing software for the System X public telephone switch.

Bachelor Of Science, Biology

Bachelor Of Science, Biology