Profile image of Erewin
Member since August 25, 2011
5 Recommendations


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Hello, my friends! There are what i have done in this 2019 year. ☑ Webrtc2sip server with Encrypted RTP ☑ Callback + AMD based on FreePBX ☑ click2call php script for Asterisk based PBXs ☑ deploy opensips server (with web panel) with 200cps\6000 concurrent calls ☑ deploy zabbix monitoring system for voip servers ☑ Increase disk space on VM without power off ☑ Moving VMs between ESXI hosts ☑ Colored fax on Hylafax+ ☑ Raspberry Bluetooth Asterisk voip\gsm gateway, ☑ Voip Push Notification iOS, Android ☑ Bluetooth-Asterisk-GSM Gateway, ☑ SIP Load-Balancers Between, ☑ TLS SIP Implementation, ☑ Freepbx Survey module, ☑ Whitelist Kamailio sip server for millions numbers in db, ☑ AGI -> PAMI scripts convert to make server more faster for wholesale, I am voip developer who loves his job. Be free to ask me any question.
$30 USD/hr
43 reviews
  • 92%Jobs Completed
  • 97%On Budget
  • 93%On Time
  • 13%Repeat Hire Rate


Recent Reviews

  • image of Mahmadnameer K. Asterisk Customization ₹23000.00 INR

    “My 1st good experience on free lancer and all credit goes to Pavel for help me trust freelancer again He understanding on what you need is really good which is most important. Very Professional , Hard working , Helpful along with good skills.”

  • image of Thufail A. Project for Pavel E. ₹4500.00 INR

    “my work completed on time”

  • image of Adnan S. SIP TUNNELING FOR DIALER $650.00 USD

    “Erewin is well experienced guy who can understand your requirement and give you best solution. I wana hire him again and again”

  • image of Dan S. VOIP Phone set-up $550.00 USD

    “Expert technical knowledge and aptitude to go beyond immediate project requirement and created for us a system better than we had originally planned for. Great communication and overall pleasure to work with.”

  • image of Renjan G. Asterisk click 2 call API need to develop from scratch. $320.00 USD

    “Pavel is excellent person to work with. He is very professional and positive and will definitely hire him in future.”

  • image of Simon K. Project for Pavel E. -- 2 $50.00 USD

    “Proud and easy to deal with Pavel E. will hire again”


DID numbers \ Django \ Python \ VOIP solutions

Dec 2013

We able to make all over solution for telecom based on opensource code. CDRTool, Opensips, Kamailio, Web, Django.


Jan 2013 - Dec 2013 (11 months)

Head of voice department. We making Virtual PBX based on Opensips \ Asterisk


Feb 2003 - Dec 2012 (9 years)



2001 - 2007 (6 years)


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