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$40 USD / 小时
BULGARIA的国旗
sofia, bulgaria
$40 USD / 小时
目前这里是11:21 上午
十月 22, 2009已加入
1 建议

Arsen S.

@eurolan

5.0 (18条评论)
5.1
5.1
72%
72%
$40 USD / 小时
BULGARIA的国旗
sofia, bulgaria
$40 USD / 小时
90%
工作已完成
100%
在预算内
100%
按时
5%
重复雇用率

VoIP Administration & Development

Hi, my name is Arsen I am a team leader of Eurolan. We are small and well-established international team of developers and linux/bsd administrators. We are only focused in VoIP field and we are working here more than 7 years. Our area of experiences includes: VoIP -Asterisk PBX: Full proficiency -Freeswitch: Full proficiency -Strong knowlege of SIP protocol and SIP routers/proxy servers -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVRs/Auto Attendant Development. SQL -MySQL/PostgreSQL - design, maintenance and optimization of databases -NoSQL - MongoDB Various Billing solutions: -A2Billing: Full proficiency (configuration from scratch, customisation) -CDRTool (prepaid billing/accounting and sip tracing for OpenSIPS using RADIUS) -CDR-Stats (call detailed statistic/realtime stat for asterisk and freeswitch) - vBilling (billing for Freeswitch) We successfully completed a large amount of commercial installations of VoIP PBX servers. From SOHO to Enterprise deployment including integrating of various VoIP solutions into existing network environment. We also have experience in building of secure "bastion" VoIP/Linux servers. Current hourly rate is $40. Fixed price projects are calculated based on the hourly rate and expected task complexity. If you choose our service we will start work on your project immediately, and we will provide you with all updates as soon as it possible. Thank you.

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文件夹

500158
497531
149485
149427
500158
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评论

变更已保存
展示18中的1-5条评论
筛选评论规则:
5.0
$60.00 USD
Arsen is one of the best freelancers I worked with, he is very competent and supportive.
PHP
Linux
Asterisk PBX
VoIP
MySQL
+1更多
M
的国旗 Mohamed K.
@MK18
8 年前
5.0
$150.00 AUD
A great professional.
用户头像
的国旗 Massimo I.
@ultimomiglio
11 年前
5.0
€110.00 EUR
Everything works fine and great support
Asterisk PBX
用户头像
的国旗 Kristof D.
@dcinbe
11 年前
5.0
$250.00 USD
It is absolutely impressive the way Arsen is knowledgeable about A2Billing / Asterisk / VoIP, he is a first class professional who knows what he does and completes the tasks very confident to the genuine satisfaction of his employer. Thank you Arsen for a Job well done and I will always solicit your services in the near future.
PHP
System Admin
Linux
Asterisk PBX
MySQL
用户头像
的国旗 Khaled B.
@afkaro
11 年前
5.0
$150.00 USD
Gra8 Job and quick reply
Website Design
Linux
Asterisk PBX
VoIP
Y
的国旗 Yehoshua J.
@ysj3010
12 年前

经验

Senior VoIP administrator

Gamasu
4月 2010 - 现在
Voip administration and development.

Voip Developer

Nextmedia
12月 2009 - 3月 2010 (3 个月, 1 天)
Development of the Billing system for wholesales VOIP customers.

System Administrator

Logicall
1月 2007 - 11月 2009 (2 年, 10 个月)
Administrating and maintenance of servers and network applications, integrating new hardware/software solutions for VoIP telephony ( CRM, billing systems). Voip Development.

教育

Engineer

Rossijskij Gosudarstvennyj Universitet Nefti i Gaza im. I.M. Gubkina, Russian Federation 2001 - 2006
(5 年)

资质

Digium-Certified Asterisk Administrator (dCAA)

Digium, Inc.
2012

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