Immagine di profilo di rkrrezaul
@rkrrezaul
Membro dal 23 ottobre 2016
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rkrrezaul

In linea Non in linea
I have 7+ years of strong experience as an IT technician development following area of experiences:  Skills include deploying, managingof VoIP networks & gateway such as IP Telephony Integration, with network administration, Linux/Unix (RedHat, Centos, Ubuntu, Debian), Asterisk , Elastix, FreePBX, Incredible PBX, AsteriskNOW, FreePBX, Trixbox, VICIdial, FXS/FXO, Backed develop A2billing, FusionPBX / FreeSwitch Switching and Call Center Solutions.  ASTPP - Open Source VoIP Billing Solution, RTPproxy, RTPengine , WebRTC  Configuring Signaling System 7 (SS7), E1 Implementing PSTN Gateways.  Experience in configuring telephony hardware including ISDN, SIP, Digium, Synway, Dinstar, Grandstream with FXS/FXO Gateway.  Experience in configuring Linux/Unix System Administration - RedHat, Centos, Debian Ubuntu. I do believe client's satisfaction is the TOP most priority of my service. Thanks for reading! Rezaul Karim
$19 USD/ora
1 recensione
0.0
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Portfolio

Recensioni Recenti

  • immagine di Vidhya Sagar D. Freeswitch help needed $25.00 USD

    “He does not seem to have knowledge about the project(freeswitch,fusionpbx) and was not able to complete. The functionalities which were working earlier were broken by him.”

Esperienza

IT Specialist

Aug 2011

I`m deploying with managing of VoIP networks & gateway such as IP Telephony Integration, with network administration, Linux/Unix (RedHat, Centos, Ubuntu, Debian), Asterisk , Elastix, FreePBX, Incredible PBX, AsteriskNOW, FreePBX, Trixbox, VICIdial, FXS/FXO, Backed develop A2billing Switching and Call Center Solutions. Also in MikroTik RouterOS, MS Windows Server, application servers (Tomcat / SSL, DHCP, ACL, NAT, Inter VLAN Routing, VLAN, PPTP).

Istruzione

Masters of Engineering

2007 - 2011 (4 years)

Pubblicazioni

A COMPREHENSIVE STUDY ON SATELLITE DIGITAL RADIO STATION

This Internship report entitled by Rezaul Karim Rezo has been submitted to the Dept. Of Electronics and Telecommunication Engineering, Daffodil International University in the partial fulfillment of the requirements for the degree of Bachelor of Science in Electronics and Telecommunication Engineering.

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