Profile image of meral
@meral
Flag of Ukraine Kiev, Ukraine
Member since April, 2007
8 Recommendations

Alexander Merkulov 

We are working with asterisk more then 15 years. Have only linux admins with 20+ years experience in team and asterisk expert with at least 10 years of extensive DEVELOPMENT work. Our primary services are voip systems design , billing for VOIP, web for voip/reporting interfaces. We have done some autodiallers, proved we can do complex modules for freepbx/trixbox, we have a2billing contributors in team. Also we have experience with multi-server voip clusters end virtualized voip services,including ones in amazon ec2. -small and large VOIP system based on SIP protocol -general voip architecture design -web and billing for voip -support for asterisk, freepbx/trixbox and a2billing, openser/kamailio/opensips. -modules and addons for asterisk, freepbx, a2billing -load balance using openser/kamailio/opensips -virtualization with openvz, xen, amazon ec2 service. -support for linux systems and supply services for voip. -create network storage clusters, mysql replicated setup, mysql-clustered experience -per hour support and consulting for all above every finished project have free limited 10 day support&bugfixes. note, we have very few aborted projects, most of them from client side. We have NO "work-in-progress-forever" list like alot of users have. so completion rate is REAL. Only thing we not do is graphical design work, we are sorry but it is hard to be proffessional in voip and design in same time. We are choosing be best in VOIP
$60 USD/hr
225 Reviews
8.3
  • 88%Jobs Completed
  • 99%On Budget
  • 98%On Time
  • 20%Repeat Hire Rate

Recent Reviews

Experience

master voip developer

Mar 2003

voip developer,work as freelancer.

voip developer

May 2000 - Mar 2003 (2 years)

created billign system for voip, voip support cisco/asterisk

Education

Specialist

1999 - 2004 (5 years)

Certifications

CISCO CERTIFIED NETWORK ASSOCIATE (2006)

cisco

Cisco network level basic certification

Publications

articles about voip

FAX/help for begiiners

Exams

  • Unix Level 1
    100%
  • General Orientation
    90%
  • Numeracy 1
    98%
  • Freelancer Orientation
    75%
  • SQL Level 1
    83%

My Top Skills

  • Asterisk PBX 146
  • Linux 138
  • PHP 115
  • VoIP 75
  • MySQL 71
  • Software Architecture 30
  • System Admin 28
  • Engineering 24
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  • Perl 18
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  • SQL 8
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  • Wireless 2
  • Cloud Computing 2
  • Cisco 2
  • C++ Programming 2
  • Database Administration 2
  • Electronics 1
  • Computer Security 1
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