Jörn Greszki

- process design - process support tool design - accounting support

- process developement - supporting financial accounting - project support for implementation projects - engineering support for material specification and selection - business modelling for FTTx rollout

Consultancy for - technical tender strategy - technical criteria definition

Project Management for 3 implementation projects

Core Network design in order to merge O2 and e-plus core networks - gap analysis betwwen 2 networks - design of transition phase network - design of target network

Design and purchasing of a Lawful Interception Solution. Review and testing of OSS modules. Tasks in and around ZTE OSS and related functional blocks in the ZTE CN nodes.

Replacement of the NSN R4 CS&PS network elements by ZTE CS&PS Core elements. Review, testing and gap analysis of the OSS of ZTE.

Analyzing and resolving problems within the charging and billing chain from CS CN element up to the billing engine.

Sunrise outsourced O&M department to Alcatel-Lucent, the tasks were almost the same as in Sunrise.

Operation, Maintenance, Testing and Implementation tasks within the Sunrise CS&PS Core Network.

Collection and analysis of O2 / Telefonica network security guidelines and demands. Gap analysis O2 demands versus security features and functionality of NSN core network products. Review and adapt the CN design as well as the product design to match O2 guidelines.

Review and implementation support for a signaling gateway / mediation device. - GAP analysis - technical consultancy - system / network design - charging/mediation/billing chain design

Temporary setup and operation of a monitoring solution as part of a network optimization campain.

Implementation and operation of a network monitoring solution. Analysis, testing and support related to the entire landscape of Partners existing monitoring solutions.

Review and fine tuning of processes introduced 1/2 year ago