Marcelo Bela Ferracini Email & Phone Number

Vale Do Silício, Califórnia, Estados Unidos

I'm one of those responsible, along with a team of other engineers, for the entire voice network and application structure (API, Converters, etc.) that are part of Wiline's Voice service.We currently have a structure composed of approximately 30 Asterisk servers, Postgress databases interconnected through APIs in different languages (Python, GO, C++, etc.), SBC with SIP engine using Freeswitch, and other devices that maintain the entire service platform of voice.I'm also a Senior Asterisk Specialist and Fullstack Developer with knowledge in several programming languages.

São Paulo, Brazil

At Canoa Digital I work as a Senior VoIP Engineer and responsible for the structure and maintenance of the entire VoIP network that integrate the company's VoIP servers and the technologies involved in the marketplace systems.Working at Canoa as a Fullstack Developer was where I acquired a big knowledge to carry out integrations between the world of Telecom and the most modern and current technology systems, which were integrations with Artificial Intelligence and integrations for analysis and decisions based on Big Data systems.I created a system using Asterisk to abstract trunks with VoIP operators, from which the system makes the best route decision for each type of call, using as decision parameters the price and route quality, today the system works with several routes autonomously and ours availability system runs practically at 100% availability.We created a VoiceBOT project with Artificial Intelligence based on Asterisk, which is used today as a virtual assistant for the entire customer service system of the company outside of human service hours. In this project, systems integrations were used such as: Asterisk and its AGI resources, integration with Speech2Text and Text2Speech systems from GoogleCloud, Google's Artificial Intelligence Platform, and other integrated devices for a performance very similar to the already known Artificial Intelligence systems such as SIRI from Apple or Alexa from AWS.In addition to all my experience as a Senior VoIP Engineer, I developed knowledge in the following languages:- HTML, CSS and Javascript- PHP- Phyton- NodeJS- Laravel- ReactJS- AdonisJS- Django- Symphony- WebRTC - WebSocket

São Paulo, Brazil

I am one of the co-founders and engineer responsible for i9Vox Telecom.I designed and structured our provider's entire network for a consistent and high-availability operation, from choosing servers and where to host them, mounting network elements (Routers, switches, etc.), installation and configuration of the operating platform and billing, and all other devices and elements that involve the VoIP network of a SIP operator.We act as a VoIP telephony provider in the corporate and wholesale market, and during this period I also worked as a Telecom consultant and Senior Architect Engineer in VoIP systems, giving full support to companies and operators that needed support in their startup, carrying out implementation, upgrades or improvements in its network structure, also assisting in all documentation with ANATEL if necessary.During the process, I gained extensive knowledge of:- Asterisk integrations using PHP-AGI, and all the features of an Asterisk system;- Management and integration with SIP and Digital trunks with other providers;- MySQL database, MongoDB, PostgreSQL, and others;- Implementation of IP and VoIP network monitoring systems;- Regulation of licenses with ANATEL;

Troubleshooting, analysis and monitoring of failures in telecommunications network in general, more specifically in telephone networks (VOIP and TDM).Configuration, test simulation, LOG's collection, and failure analysis in general in AUDIOCODES gateways, which are certified by Audiocodes itself.Opening of tickets and monitoring them until their resolution, interacting directly with customers, PABX maintainers and suppliers, until the definitive resolution of the failure, within the established deadlines (SLA).Support to PABX maintainers, and customers who use Analog PBX and IP PBX services, working in the configuration of trunks, extensions, recording research, URAs, cellular interfaces and analysis of internal failures, helping the customer in solving their problem.Knowledge in FreePBX IP PBX, Elastix, Asterisk, etc.Configuration and tests for approval of SIP routes, with market providers.Support for failure analysis in the client's internal IP network, acting and identifying possible failures in the network and its elements (Router, Switch, Hub, cabling, etc.)Responsible for applying all internal training to support staff and interconnected sectors, applying training on networks, VOIP telephony, conventional telephony, IP PBX, Audiocodes gateways, and so on.Assuming the responsibility of coordinator in his absence, on vacation or other type of absence.Configuration and analysis of internal routing in our switches.Performance, configuration and maintenance in equipment such as SBC and Softswitch, SIP SERVER's, managing the entire TDM and IP telephony environment.Acted on suggestions and improvements within the network structure as a whole, for better performance and performance.Creation of procedures for operating in different equipment and situations, to serve as documentation for new, less experienced employees, thus ensuring more agility in the treatment and resolution of our customers' failures.

Responsible for the implementation and structuring project of a network for the start of a new VOIP operator, raising the most suitable equipment for structuring and making budget spreadsheets for these.Configuration of Softswitch's and SBC's for approval.Laboratory tests of network infrastructure and the most suitable topology for creating a VoIP operator.Feedback to the company's CEO, with reports of test results and all steps of the company's project.Interview for new employees who would become part of the support and NOC body.I specialized in various types of VOIP gateways, as this would be our endpoint with end customers.Meetings with equipment suppliers (Siemens, Huawei, Veraz, Nokia, etc.) for knowledge and analysis of the best solution for our topology and services to be provided.

São Paulo E Região, Brasil

I worked in the handling of complaints from mobile and fixed telephony customers within TIM BRASIL S.A., performing "troubleshooting" of failures and analysis in general. Interacting through AX Ericcson telephone exchanges, performing tests and monitoring of protocols and call signaling, opening BA's between operators, interacting directly in contact with subscribers until the failure is resolved.

São Paulo E Região, Brasil

I worked for 5 years at EMBRATEL which is the largest Telecom company in Brazil, which was where I had my first contact with VOIP systems, but I also worked on NGN networks, monitoring and acting in a proactive and reactive way in data and voice networks of customers in the cable TV network, where in 2005 the first product was launched that screwed up internet, TV and telephone in a single cable. Acted recording actions and giving feedback, triggering, interacting and scaling the areas of the company, partners and suppliers, monitoring until resolution or resolution of the failure/incident, within the established deadlines, for customer satisfaction.Performed proactive monitoring in the data/voice networks of customers to ensure the perfectoperation of the same, following established procedures and processes. Monitoring call traffic, route alarm and elements in general within the network. Knowledge in telephone exchanges such as: SoftSwitch Siemens and Huawei, EWSD Siemens, AXE Ericcson, NEC Sigma and others.Basic knowledge of PBX systems. Great knowledge across the telephone network, NGN and TDM network. Knowledge in IP, ISUP, MGCP, SIP, RTP and others protocols. IP, MPLS, ATM, Frame Relay, VoIP and converged networks, WAN and LAN (switches and routers).

São Paulo E Região, Brasil

I worked in the operation and support of the IT area. Performing routines on Unix systems to include and exclude data in the database (ORACLE). Network monitoring and activation of other sectors if necessary.It ran process inside the servers and performed Backup's of the servers.

Telecom/Electrical Engineer, Telecommunications

Activities and Societies: TCC

Telecom Technician, Telecom

Activities and Societies: In our final course completion activity, we created a live streamming channel for a TV channel and frequency.