Juan Francisco Jerez Ayala Email & Phone Number

Madrid, España

• Coordination and planning of the deployment of the different phases of the project and the activities to be carried out in each phase.
• Monthly review with other Units of the Calendar of activities to be carried out.
• Network support to ATC (Air Traffic Control) User Systems deployments
• Design of network solutions for ATC User Systems.
• Configuration of equipment from different vendors (CISCO, Actelis, Juniper, Mobatime,...).
• Interconnection solution with other Aeronautical Communications Networks: PENS (PanEuropean Network Services), CAFSAT (Central Atlantic FIR Satellite Network).Main Customer: Enaire

Madrid, España

• Design of network solutions based on level 2 VPNs and level 3 VPNs.
• Implementation of solutions using the communications protocols: MPLS. IS-IS, BGP, PIM-SM, SSM.
• Design of the Time Synchronization Solution for all Air Navigation ATC User Systems based on Mobatime equipment and using Synchronization protocols such as NTP, IRIG-B, RS232 (telegrams), DCF, and allowing the.
• Network support for the deployment of Air Navigation Voice IP Communications.Main Customer: Enaire

Madrid, España

• Implementation of solutions using the communications protocols: WAN transport protocols (X25, Frame Relay, ATM) and IP protocols (OSPF, BGP, PIM-SM).
• Configuration of equipment from different vendors (CISCO, Nortel, Alcatel, RAD, Symmetricom,...).
• Network engineering and testing for ATC Voice transport through REDAN with Aal1Ces service through ATM.
• Collaboration in the implementation of the Platform for the integral management of the network based on Netcool, HP Service Desk and InfoVista tools.
• Training of Aena technicians in the ATC voice transport solution through the network.
• Tests for the implementation of PRS (Primary Reference Source) network synchronization equipment in the network with the manufacturers Symmetricom and Oscilloquartz.

Oporto, Portugal

• Coordination of the UMTS network integration engineering team (Radio, Network Core and Management).
• Nortel interlocutor with the customer.
• Monitoring and technical coordination of the different phases of the project.
• Planning and commissioning of network services.
• Validation testing of new UMTS software versions.
• Integration tests with other suppliers (ERICSSON).

Madrid, España

• Commissioning of the UMTS and GPRS Packet Network Core in several operator companies.
• Preparing and giving presentations to customers on UMTS equipment and technology (SGSN and GGSN).
• Participation in the Telefónica Móviles UMTS service award tender to suppliers (Telefónica Móviles UMTS Trial).
• Supervision of UMTS and GPRS Packet Network Core installations in Vodafone Spain, Xfera, Vodafone Portugal and Oniway Portugal.
• Integration of Nortel Passport equipment in the ATM networks of Vodafone, Jazztel and FirstMark.
• Installation and configuration of Nortel equipment in Jazztel Test Bed.

Lisboa, Portugal

• Supervision of antenna installations, LMDS base stations and customer equipment.
• Commissioning of the LMDS service.
• Customer training on LMDS technologies and the Nortel solution.
• Configuration of Passport equipment to link LMDS base stations with the Jazztel Portugal customer's Monitoring and Operations Centre.
• Verification tests of the radio links (power measurements, coverage,...).
• Configuration of LMDS base stations and customer equipment.Main Customer: Jazztel Portugal.

Madrid, España

• Validation tests of the Operating System on Telefonica Access PSTN “SERA Project” (AXE, S12, and 5ESS circuit switching nodes, Inelcom multiplexers, emulators of circuit switching node,…).
• Validation tests of the Integrated Management System of the Gigacom ATM network of Telefónica "SEMTA Project" (tests on the Network Operation and User Operation Systems and network Planning and Billing tests).
• Validation tests of the Telefónica SS7 Signalling Network Operation System "SERES Project".
• Configuration and installation of the DynaText tool and the documentation WEB server (DynaWeb) under UNIX platform.
• Development of written and graphic materials (user manuals and quick reference guides).Main Customer: Telefónica I+D.