Benvindo Cabral available

Benvindo Cabral

Voice Engineer

Profileimage by Benvindo Cabral Voice Engineer from
  • Freelancer in
  • Graduation: Bsc. Electronics and Telecommunication
  • Hourly-/Daily rates: not provided
  • Languages: English (Full Professional) | Dutch (Elementary) | Portuguese (Native or Bilingual) | Spanish (Full Professional)
  • Last update: 06.05.2019
20+ years experience in carrier voice networks, administering class 4 and class 5 voice switches (Ericson ANS, Ericsson AXE, Ribbon DMS-100, Ribbon CS2K and C20 solutions.
I also have knowledge and some experience working with complementary equipments such as routers, data switches, SIP phones, (Cisco), diallers, Terminal servers, OS servers (Windows, Unix, AIX, Linux and HP).
18 years of working experience in Portugal and 3 years in The Netherlands as a freelancer.
Hands-on technologies included are TDM, ISDN (BRI, PRI), ISUP, SS7, V5.2. NCS/MGCP, H.248, H.323, TCP/IP suite, SIP..
Monitoring systems : Netcool, Nagios, Splunk.
Experience with SQL, MySQL and more recently MongoDB.
Knowlege of Asterisk and OPENSIPS.
Experience with protocol and data analyzers, HW (e.g RADCOM Aurora) and SW based (e.g Wireshark, tcpdump)
Programming languages knowledge include C#, shell scripting, Excel VBA, Java, Javascript, PHP, Python. All self-taught and at the moment my profiency is beginner to intermediate level. I am on my way though to add more to the list and to deepen and to achieve a level of expertise with Python.

The Netherlands
VodafoneZiggo - From June 2015 to May 2018
Phasing out of 3 legacy voice switches DMS-100 and migrating its services (B2B ISDN30) to CS2K and C20 solutions (NGN Voice switches).

Cabovisão, S.A - From May 2001 to August 2012
Voice Operations team lead.
Started-up the telephony service of the company with former Nortel DMS-100, Access Nodes Arris HDT and CPE Arris Voiceport (POTS, ISDN).
Upgraded te voice network to a hybrid solution based in former Nortel CS2K, Access Nodes Nuera Orca RDT8 and General Bandwith G6. CPEs were MTAs of several vendors (e.g. Arris, Motorola).
Several deployments of internal projects from which Local Number Portability, Lawful Interception, deployment of IN type solutions through translations, class 5 services updates, services and accesses (lines, trunks) migrations, upgrades.

Interoute Portugal - From August 1998 to April 2001
Initially as a Voice engineer, performing O&M, providing 1st and 2nd line support to company's clients and after 1 year, as a team lead responsible for the integrity of the voice network and assets.
The voice solution consisted on Ericsson voice switches (ANS and AXE) for domestic and international interconnections (SS7) with other carriers.
The company didn't have its own network and so the services were essentially Carrier Preselect based, achieved by the means of diallers installed in customer premises.

Comnexo - Redes de Comunicações, S.A - From Fev 1996 to July 1998
As a telecom technician, performed X.25, Frame relay and later IP services O&M, provided 1st and 2nd line support, on-call with on-site intervention in customer premises, if required.
The availability to start depends on the relocation preceedings.
There is total flexibility to negotiate and fine tune it.