Ivan V. Profile

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5.0

(48 reviews)

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$40 USD / hour

belgrade,

serbia

$40 USD / hour

It's currently 10:00 AM here

Joined January 20, 2011

2 Recommendations

Ivan V.

@ivan381eu

5.0

(48 reviews)

7.0

73%

$40 USD / hour

belgrade,

serbia

$40 USD / hour

100%

Jobs Completed

100%

On Budget

100%

On Time

36%

Repeat Hire Rate

VoIP, Asterisk, Kamailio guru, 25+ years programming experience

Basic services: custom VoIP system design, VoIP billing, custom Web GUI for Asterisk appliances. I can handle any request related to VoIP servers, Asterisk PBX as well as specific Asterisk appliances (FreePBX, ViciDial, GoAutoDial, TrixBox). For more then 600 simultaneous calls I recommend SIP server Kamailio with many Asterisk nodes behind. - small and large VoIP system based on SIP, IAX, H.323 - VoIP architecture design - Web GUI and billing for VoIP - support for Asterisk, FreePBX, Trixbox, A2Billing, OpenSER (Kamailio or Opensips). - custom add ons for Asterisk, FreePBX, A2Billing - VoIP load balancing using OpenSER (Kamailio or Opensips) - support for Linux systems and suplimentary services for VoIP - "on call" support and consulting for all above

See all PHP Developers in Serbia

Contact Ivan V. about your job

Portfolio

A2Billing Calling Card System http://www.bolingo.net

735082

FreePBX module for auto dialing numbers uploaded in csv format. You can make an call event using WYSIWYG calendar. Please check video presentation.

Dialer features:
- define number of calls per event
- call duration range,
- max simultaneous calls,
- caller id (from list in uploaded csv file)

Two additional options:
- round robin dialing (in order of appearance in csv file) or random dialing,
- call spread out over the call event time frame (e.g. define ten hours long call event, ten calls for this event, so every next call will be dialed at the beginning of next hour)

Implementation time frame:
- 2 days for Linux server with Asterisk and FreePBX installed
- 4 days for raw Linux server (no Asterisk, no FreePBX)
- 7 days for installation on Linux server with Asterisk in production

FreePBX Auto Dialer module

A2Billing Calling Card System http://www.bolingo.net

735082

FreePBX Auto Dialer module

Reviews

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Showing 1 - 5 out of 48 reviews

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5.0

$1,000.00 USD

IPRN customization of A2Billing

Yes, defintely.

PHP

Software Architecture

Bartosz K.

@bartoszingress

•

5 years ago

5.0

€450.00 EUR

FreePBX Random Call Module

Professional , Helpful even in problem that wasnt his part of the job

PHP

Software Architecture

Asterisk PBX

VoIP

MySQL

Reuven T.

@itmigfin

•

8 years ago

5.0

$292.50 USD

Ubuntu/Kurento Installation on AWS EC2

Ivan completed the required work and went above and beyond our expectations. He was a pleasure to work with, professional, and has a vast knowledge of his skillset. I will definately use again!

Linux

Amazon Web Services

Ubuntu

Closed User

@chadclund

•

9 years ago

5.0

€4,797.00 EUR

Application Development Programming

Ivan is a pleasure to work with. Communication is very important and Ivan understands that this essential to the success of a project. He ask questions when appropriate and communicates his progress.

PHP

Software Architecture

Asterisk PBX

MySQL

HTML5

David L.

@DavidLifson

•

10 years ago

5.0

€355.00 EUR

REST server & Asterisk SIP-URI call

supernicework

Asterisk PBX

Closed User

@telef

•

10 years ago

Experience

Morodo UK

Oct 2010 - Apr 2012 (1 year, 6 months)

- VoIP cluster monitoring, traffic over 10k+ minutes monthly, - Project Management (VoIP Call back solution, DID traffic failover improvement), - Consulting (Advice on new and existing, voice and video services)

VoIP Balkan

Sep 2007 - Jul 2010 (2 years, 10 months)

- SIP server monitoring system, - SIP server adaption for communication via H.323 protocol - Ministry of Foreign Affairs of the Republic of Serbia - autonomous telecommunication system (numeration indepedent from local Telco, interoperability with Siemens, Avaya, Panasonic PBXs via ISDN PRI), - VoIP call back solution (PSTN & GSM to VoIP) - Centralized monitoring system for 50+ Asterisk IP PBX installations, - Asterisk based Call center solution design, - Asterisk IP PBX customized solutions, - Mass

Education

University of Belgrade - Faculty of Mathematics

Serbia

1987 - 1991

(4 years)

Qualifications

Red Hat

2010

An RHCSS certification may be earned by a Red Hat Certified Engineer (RHCE) who has demonstrated deeper capabilities in networking services security, directory services, authentication, and SELinux policy management. An IT professional who earns an RHCSS certification has met the security requirements for today's enterprise environment.

Publications

IT weekly "COM"

Info Home, Serbia EU

During the 5 years period I published number of articles about Linux, Web services, VoIP security, Asterisk appliances, Kamailio SIP proxy, MySQL clustering etc.