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Paweł Urbanowski

VoIP / IP Telephony Engineer

It is tempting, if the only tool you have is a hammer, to treat everything as if it were a nail.

- Abraham Harold Maslow

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About Me

  • Paweł Urbanowski
  • October 25, 1984
  • pawel@urbanowski.pl
  • +48 884 836 151

Hello! Welcome to my personal page.

Since you are here, it means you are looking for Unified Communication expertise to help grow your business.
I am passionate about networking and technologies that makes our lifes easier. Please check out my resume and do not hesitate to contact with me. I am always looking for a new challenges and will be more than happy to design and implement the unified network that your business deserves.

Recommendations

I found Pawel to be technically very strong and a fast learner. He is able to absorb highly complex technical material quickly and with minimal guidance. Pawel has shown that he is a team player, contributing to the goals of the team, pulling more than his weight, and jumping in to help other team members whenever there is a need. During his tenure, Pawel has received very good customer satisfaction feedback, above the 40-member Unified Communication team's average.
I highly recommend Pawel for employment. He would make a great asset to any organization. Geraldine Nadela ‐ Manager, Technical Services
Cisco Systems Belgium

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Employment

  • Customer Support Engineer 08.2011 - 08.2013
    Cisco Systems Belgium

    • TAC (Technical Assistance Center) VNG (Voice Networking Group) Backbone Team
    • Troubleshooting VoIP and IPT solutions: MeetingPlace, TelePresence, CUCM, IOS)
    • Prioritizing issues to meet tight deadlines and manage customer satisfaction
    • Developing internal TAC Linux distribution for SIP testing – SIPper
    • Developing Java based CUCM database replication issues diagnostic tool – DBHelper
    • Found method of injecting rogue RTP packets into RTP stream played out by Cisco IP Phones
    • Hacked root access to CUCM, TelePresence and other RedHat based Cisco Linux distributions

  • Senior Technical Architect 06.2010 - 05.2011
    Telekomunikacja Polska S.A.

    • VoIP (Cisco & OneAccess Voice Gateways) & CUCME (Cisco Unified Communications Manager Express) projects leader
    • Designing and validating VoIP (Cisco & OneAccess) and IP Telephony (CUCM & CUCME) solutions to use in SIP trunking services: Orange’s Business Talk and Business Talk IP
    • Work scheduling and reporting
    • Developing test plans and test cases
    • Preparing technical documentation
    • Validation of SIP implementation in Cisco, OneAccess and Polycom products
    • Developing of SIP Normalization Scripts (LUA Language) for CUCM 8.5/8.6
    • Preparing projects of migration and implementation of VoIP and IPT solutions
    • Debugging VoIP and IPT issues
    • Cooperating with TAC engineers: Cisco, OneAccess and Polycom

  • Technical Architect 04.2009 - 05.2010
    Telekomunikacja Polska S.A.

    • VoIP (Cisco & OneAccess Voice Gateways) project leader
    • Work scheduling and reporting
    • Designing and validating VoIP (Cisco & OneAccess) and IP Telephony (CUCM & CUCME) solutions to use in SIP trunking services: Orange’s Business Talk and Business Talk IP
    • Preparing technical documentation
    • Validation of SIP implementation in Cisco, OneAccess and Polycom products
    • About 20 found bugs and issues in VoIP and IP Telephony products of Cisco (CUCM, CUBE, ISRs, IP phones) and OneAccess (routers, voice gateways)
    • Debugging VoIP and IPT issues
    • Cooperating with TAC engineers: Cisco, OneAccess and Polycom

  • Editor 05.2006 - 05.2007
    PCLab.pl

    • Editor of hardware section
    • Writing computer hardware reviews

  • Editor 03.2003 - 03.2005
    TwojePC.pl

    • Editor of hardware section
    • Writing computer hardware reviews

  • Editor 03.2003 - 06.2003
    IT Security Consulting Services

    • Editor of „IT-FAQ” magazine
    • Writing articles regarding computer networks

Education

  • Computer Science 2008 - 2009
    Warsaw University of Technology

    • The Faculty of Electronics and Information Technology
    • Studies in the field of Computer Science
    • Emphasis: Computer Information System Engineering
    • Level of qualification: Higher education: Master’s degree
    • Diploma thesis: „Methods of configuration of FPGAs”

  • Computer Science 2004 - 2008
    Warsaw University of Technology

    • The Faculty of Electronics and Information Technology
    • Studies in the field of Computer Science
    • Emphasis: Computer Information System Engineering
    • Level of qualification: Higher education: Bachelor’s degree
    • Diploma thesis: „Computer configuration of an FPGA using a DSP”

Certifications

  • Expert

    • CCIE (Cisco Certified Internetwork Expert) Voice #38361

  • Professional

    • CCDP (Cisco Certified Design Professional)
    • CCIP (Cisco Certified Internetwork Professional)
    • CCNP (Cisco Certified Network Professional)
    • CCNP Voice / CCVP (Cisco Certified Network Professional Voice)

  • Associate

    • CCDA (Cisco Certified Design Associate)
    • CCNA (Cisco Certified Network Associate) Routing and Switching
    • CCNA (Cisco Certified Network Associate) Voice
    • SSCA (SIP School Certified Associate)

  • Specializations

    • CS-CUSS (Cisco Unity Support Specialist)
    • CS-CRSSS (Cisco Routing and Switching Solutions Specialist)

Hobbies

  • Computer network technologies
  • High-Tech
  • Android based devices
  • Linux based set-top boxes (Dreambox, VU+)
  • Developing Java software
  • Reverse engineering, Hex-Rays IDA
  • Video Games

Call Control Skills

  • CUCM / CallManager 100%
  • CUCME (UCM Express) 100%
  • Cisco IOS 100%

Conferencing Skills

  • Cisco MeetingPlace 100%
  • Cisco MeetingPlace Express 100%
  • Cisco TelePresence 20%
  • WebEx Meetings Server 20%

Contact Center Skills

  • Cisco UCCX 50%

IM & Presence Skills

  • Cisco Unified Presence 75%
  • Cisco Jabber 20%

Multi Services Skills

  • ISR routers 100%
  • IOS VG 100%
  • CUBE 100%
  • SBC 50%

Voice Mail Skills

  • Cisco Unity Express 90%
  • Cisco Unity Connection 70%

Signalling Protocols Skills

  • SIP 100%
  • H.323 90%
  • MGCP 90%
  • SCCP 90%
  • ISDN Q.931 90%

Quality of Service (QoS) Skills

  • Call Admission Control 100%
  • Differentiated Services 100%
  • Integrated Services 100%
  • RSVP 100%

Linux Based OS Skills

  • Bash scripting 50%
  • Debian 70%
  • Red Hat 60%
  • Ubuntu 80%

Programming Languages Skills

  • Assembler 50%
  • Java 60%

Servers & Virtualization Skills

  • Cisco UCS Servers 100%
  • Cisco MCS Servers 100%
  • Oracle VirtualBox 80%
  • VMware ESXi 80%

Validation Skills

  • Testing automation 75%
  • Test plans development 100%
  • Technical documentation 100%
  • JIRA / Mantis 100%
  • Wireshark 90%
  • SIPp 90%
  • Quality Control 100%

Conferencing Skills

  • Troubleshooting 100%
  • Problem solving 100%
  • Work scheduling 90%
  • Task prioritizing 100%

Download My Resume

Consulting

The scope of my consutling services:
- Providing technical leadership.
- Configuring and leading the design, configuration and deployment of VoIP networks.
- Executive and technical-level communications and relationship building to gain credibility/trust of internal and external customers.
- Interviewing customers to determine highly technical requirements ...

Read more →

Design

Design of Voice over IP (VoIP) and IP Telephony (IPT) networks based on Cisco best practices.
I am offering following services:
- High Level Design (HLD),
- Low Level Design (LLD),
- Proof of Concept.

Read more →

Integrations

Although my current expierence is full of Cisco technologies, the deep knowledge of Voice over IP (VoIP) signalization, media and networking protocols allows me to integrate systems from different vendors. Alcatel, Avaya, Cisco, Siemens, analog or digital, IP or non IP, secured or unsecure, it does not matter. You should be pursuing convergence of all your systems and I am going to help you with that.

Read more →

Migrations & Upgrades

Migration to a new system or software release upgrade can be a quite stressful and risky activity.
You can minimize the risk by hiring engineer who was engaged in migration/upgrade project of Telepresence service clusters for SAP AG.
The project was consisting of following steps:
- migration of Cisco Unified Communications Manager (CUCM) cluster from MCS (baremetal) to UCS (virtualized deployment) server ...

Read more →

Support & Troubleshooting

Do you need help with root cause analysis?
Would you like to minimize mean time to resolution?
What about vendor support contract cost reduction?
Customer satisfaction ratio needs a boost?
If you there is a "yes" answer for at least one of the questions, it means you need a Cisco TAC ex-employee ...

Read more →

Trainings

Instead of relying on a 3rd party support engineers, invest in your team skills rump up.
This investment will result in:
- reduction of time needed in fiding the root cause of the issue,
- increased customer satisfaction,
- decreased costs of vendors' support contracts...

Read more →

Validation & Quality Control

I have over 2 years of experience in validation SIP trunking services and been involved in testing Orange's Business Talk and Business Talk IP services.
I can help you with:
- network audit,
- high (service) and low (protocol) level checks,
- test plan and test cases development ...

Read more →

Consulting

The scope of my consutling services:
- Providing technical leadership.
- Configuring and leading the design, configuration and deployment of VoIP networks.
- Executive and technical-level communications and relationship building to gain credibility/trust of internal and external customers.
- Interviewing customers to determine highly technical requirements.
- Converting requirements into actionable scope of work.
- Coordinating proof of concept testing.
- Providing knowledge transfer to a customer.
- Performing analysis of the networking problems as well as providing highest-level crisis management.
- Facilitating design reviews for proposed architectures.
- Providing recommendations on viability, implementation strategies and optimal implementation of solutions.
- Assisting in the daily maintenance of voice network infrastructure.
- Managing voice networking relationships and working with vendors to escalate issues when appropriate.
- Reviewing network utilization statistics to verify that circuits are properly sized.

Design

Design of Voice over IP (VoIP) and IP Telephony (IPT) networks based on Cisco best practices.
I am offering following services:
- High Level Design (HLD),
- Low Level Design (LLD)m
- Proof of Concept.

Integrations

Although my current expierence is full of Cisco technologies, the deep knowledge of Voice over IP (VoIP) signalization, media and networking protocols allows me to integrate systems from different vendors. Alcatel, Avaya, Cisco, Siemens, analog or digital, IP or non IP, secured or unsecure, it does not matter. You should be pursuing convergence of all your systems and I am going to help you with that.

Migrations & Upgrades

Migration to a new system or software release upgrade can be a quite stressful and risky activity.
You can minimize the risk by hiring engineer who was engaged in migration/upgrade project of Telepresence service clusters for SAP AG.
The project was consisting of following steps:
- migration of Cisco Unified Communications Manager (CUCM) cluster from MCS (baremetal) to UCS (virtualized deployment) server,
- migration of Cisco Telepresence Server (TPS) cluster from MCS (baremetal) to UCS (virtualized deployment) server,
- upgrade of CUCM and TPS software releases,
- upgrade of Cisco Telepresence endpoints firmware.
I was also participating in preparing the migration plan and proof of concept of replacing H.323 service with SIP trunking for Orange Business Services.

Support & Troubleshooting

Do you need help with root cause analysis?
Would you like to minimize mean time to resolution?
What about vendor support contract cost reduction?
Customer satisfaction ratio needs a boost?
If you there is a "yes" answer for at least one of the questions, it means you need a Cisco TAC ex-employee.

I was supporting following technology modules:
- Call Control (CUCM / CallManager),
- Multi Services (IOS, CUBE, voice gateways, CUCME, CUE, CUSP, SBC, ...),
- Conferencing (MeetingPlace, MeetingPlace Express, Cisco WebEx Meetings Server),
- Cisco Telepresence.

Trainings

Instead of relying on a 3rd party support engineers, invest in your team skills rump up.
This investment will result in:
- reduction of time needed in fiding the root cause of the issue,
- increased customer satisfaction,
- decreased costs of vendors' support contracts.

I can teach how to:
- use the proper troubleshooting methodology,
- use Wireshark protocol analyzer,
- use SIPp for performance and interoperability testing,
- prepare your system for troubleshooting,
- analyze Cisco logs,
- work with signalization protocols: SIP, H.323, MGCP, SCCP (Skinny), ISDN Q.931.

Validation & Quality Control

I have over 2 years of experience in validation SIP trunking services and been involved in testing Orange's Business Talk and Business Talk IP services.
I can help you with:
- network audit,
- high (service) and low (protocol) level checks,
- test plan and test cases development,
- testing automation,
- setting up testing workspace,
- implementing best practices,
- team training on tools used for validation and reporting.

Contact Info

  • Wołomin, Poland
  • pawel@urbanowski.pl
  • +48 884 836 151
  • pawel.urbanowski

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