SIP Freelancers

Showing 10 freelancers

SIP Freelancers

Showing 10 freelancers

  • Asterisk/Vicidial/FreePBX/Elastix Expert | Technical Support

    Over the past 4 years, I have installed and configured a total of around 1,000 seats call center system with a maximum of 14 servers on one site using Vicidial on both standalone and multi-server setup. I have also … more

    Over the past 4 years, I have installed and configured a total of around 1,000 seats call center system with a maximum of 14 servers on one site using Vicidial on both standalone and multi-server setup. I have also also installed and configured IPPBX systems, VOIP systems, GSM gateway systems and asterisk-based systems using FreePBX and Elastix ranging from small to medium business enterprises including integration of IPPBX to a legacy PBX(PABX) and to CUCM. My core competencies lies in Asterisk, Vicidial, FreePBX, Elastix, Linux, SIP, IPPBX and PABX/CUCM integration, VOIP systems and GSM gateway systems. And I'm seeking opportunities to install, develop, configure and support call center systems and IPPBX systems from the ground up for you or your business. I have also experience in the following areas: MySQL, Windows Operating Systems, Microsoft Office applications, Apache, Basic to advance TCP/IP networking configuration, Basic to advance troubleshooting(system, software, hardware and networking), SDLC, UML Diagrams and OOP diagrams, FTP, remote desktop support, firewall, linux/shell scripting, Softphone(Eyebeam and Xlite) configuration, IP Phone(Polycom, Escene, Grandstream, Yealink, etc) configuration, Video Phone(Grandstream, Yealink, etc) configuration, Operator phone configuration, FXO/FXS gateway configuration and Sangoma/Digium/Atcom/Openvox card configuration(TDM/Analog, E1, E1R2, PRI/BRI).  less

    asterisk vicidial freepbx linux-system-administration sip mysql apache-administration 00 more less
    • $33.33 HOURLY RATE
    • 5.0
    • 32 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 1 TEST
  • Asterisk/Elastix/Freepbx/VoIP/Chan Dongle/Raspberry/Network specialist

    i am a VoIP specialist dealing with asterisk and voip billing based servers: freepbx elastix a2billing and Kamailio. i have collected much experience in installing and configuring VoIP servers and giving support for costumers during my last job position at … more

    i am a VoIP specialist dealing with asterisk and voip billing based servers: freepbx elastix a2billing and Kamailio. i have collected much experience in installing and configuring VoIP servers and giving support for costumers during my last job position at Voipmaroc and Nogafone. during my last jobs i was charged to deploy a voip call center based on elastix asterisk for DYARelmansour , a construction company leader in Morocco , and a call center ViciDial for EIGENVALUE based in Morocco and for many end user of IPBX appliances and customized IPbx installationsbased on asterisk. my diplomat at network engineering and Centos Linux experience helped me to devolope my skills in VOiP. i am ready to serve.  less

    asterisk elastix centos a2billing cisco-voip voip-administration automated-call-distribution freepbx sip 00 more less
    • $21.11 HOURLY RATE
    • 5.0
    • 129 HOURS
    • MOROCCO
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 4 TESTS
    ASSOCIATED WITH:
  • VoIP Expert / IP-PBX Specialist / Computer Networks / Linux

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot … more

    A man interested in all things Computer and Data/Voice Networks related. Also a Linux and Virtualization enthusiast :) A strong supporter of Richard Stallman and Open Source software movement! You can visit and view my thoughts on: http://myciscojournal.blogspot.com Some Areas of my expertise: VoIP: -Genband Nextone - Expert -Sonus and NBS Solution - Expert -MVTS Pro and MVTS II - Expert -Acme Packet - Sound proficiency -Asterisk PBX: Full proficiency -Strong knowledge of SIP protocol and SIP routers/proxy servers/SS7 -OpenSER (Kamailio/OpenSips) -Load Balancing, Least Cost Routing, High Availability, NAT Traversal, Rate and billing systems, etc. -IVRs/Auto Attendant Development. -Wireshark - Expert Cisco Routing and Switching technologies. Centos/Fedora/Red Hat Enterprise Linux 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) Above all, a passionate technical writer, who enjoys writing down great tutorials in his free time :)  less

    cisco-routers cisco-voip sip linux-system-administration vicidial elastix trixbox a2billing freepbx asterisk 00 more less
    • $11.11 HOURLY RATE
    • 5.0
    • 1139 HOURS
    • MALAYSIA
    • LAST ACTIVE
    • 5 PORTFOLIO ITEMS
    • 5 TESTS
    ASSOCIATED WITH:
  • Independent Multimedia, Communications and Marketing Consultant

    Resourceful, Cooperative, Technology Orientated Multitasker and Motivated Self Starter with a Vast Amount of Customer Service, Sales and Technical Support Environment in a Call Centre (10+ Years) Setting and in Person. A Leadership Role Building and Maintaining a Strong, Loyal … more

    Resourceful, Cooperative, Technology Orientated Multitasker and Motivated Self Starter with a Vast Amount of Customer Service, Sales and Technical Support Environment in a Call Centre (10+ Years) Setting and in Person. A Leadership Role Building and Maintaining a Strong, Loyal, Satisfied and Educated Customer Base. Acquired Unique Skills Dealing with People from a Variety of Cultural Backgrounds, Range of Ages and Diversity Needs. Languages: English (Native), Greek (Fluent) and Spanish (Beginner) Skill Strengths Organized and Innovative Approaches to Tasks Efficient & Productive Service with Quality & Measurable Outcomes Ambitious and Open Minded - Can Do Attitude, with a Smile! Understanding Internal/External Customer/Business Requests/Needs Evaluating Information and Providing - Best Fit Solutions Informing Clients about Additional Value Added and Benefits by Up & Cross Selling Products and/or Services Educating Clients about Alternative Time Saving Channels of Service/Information Promoting Our Brand Name and Business and/or Industry Troubleshooting and Problem Solving Instilling Confidence to Clients Proactive Attention to Details and Excellent Photographic Memory Well Developed Technological Knowledge, Processes and Practices.  less

    web-design sales social-media-marketing database-management telemarketing brand-consulting sip 00 more less
    • $22.22 HOURLY RATE
    • 5.0
    • 9 HOURS
    • CANADA
    • LAST ACTIVE
    • 18 PORTFOLIO ITEMS
    • 10 TESTS
  • Freelance Technical Support Engineer.

    For the past 7 years, I worked as NOC technical support engineer for an iLEC company wherein my responsibility includes monitoring and maintaining the network, servers and any telecommunications equipment in the company. I have experience working with cisco and juniper network devices.

    cisco-ios salesforce-app-development network-administration five9 java tcp-ip zendesk salesforce-apex interactive-voice-response sip 00 more less
    • $15.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • PHILIPPINES
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 8 TESTS
  • (VoIP) Dell Certified System Engineer

    Career Objective: My Objective is to understand the needs of the buyers/clients, so that we can provide desired services. With my experience of more than 3 years of experience. I am very much familiar with the customers needs and … more

    Career Objective: My Objective is to understand the needs of the buyers/clients, so that we can provide desired services. With my experience of more than 3 years of experience. I am very much familiar with the customers needs and expectations. Also, my IT skills(DCSE, CCNA, VoIP) help me in achieving my goals and targets to satisfy my customers needs.  less

    technical-support customer-support dhcp ospf cisco-routers sip voip-administration linux-system-administration 00 more less
    • $11.11 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • INDIA
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 9 TESTS
  • Asterisk/ VOIP/Video Conferencing Solutions Consultant

    Solutions architect and project manager with a strong focus on VOIP and voice driven applications including IVRs,pabx systems, and call center integration leveraging open source and closed source technologies to implement customised solutions. Flair for systems analysis and design … more

    Solutions architect and project manager with a strong focus on VOIP and voice driven applications including IVRs,pabx systems, and call center integration leveraging open source and closed source technologies to implement customised solutions. Flair for systems analysis and design with advanced communication and people skills. Specialties: Linux / Unix - Advanced Asterisk - Advanced VOIP - sip/iax -advanced Windows XP / Server - advanced Windows 7 - Intermediate Cisco routing/switches - advanced MSSQL - Intermediate MySQL - advanced Predictive Dialer systems - Advanced Excel - advanced c # - advanced Procurement / professional communication - advanced perl - intermediate Genesys Call Center Systems - Advanced Avaya - intermediate Current Roles / Achievements Responsible for all Voice / VOIP infrastructure across the OCIS group. Enhanced call handling efficiency by approximately 40% - via software upgrades and enhanced configuration. Developed enhancements to integrate with line of business systems and provide visibility on call patterns through visual tools. Added web based video conferencing, screen share and web chat to the portfolio of services available to all OCIS business users. Integrating Polycom auto provisioning systems with voice solution to make service delivery more robust and efficient. Currently developing intelligent routing systems for VOIP using EIGRP on cisco core devices. Integrating DUNDi, database functions, static variables from MySQL clusters with a self healing voip routing solution as the end goal  less

    asterisk centos automated-call-distribution call-center-management interactive-voice-response cisco-voip cisco-routers sip technical-support creative-writing article-writing project-management red5 unix-system-administration vmware-esx nagios avaya contract-drafting windows-8-administration dhcp data-analysis bacula ibm-storage 00 more less
    • $50.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • FIJI
    • LAST ACTIVE
    • 1 PORTFOLIO ITEM
    • 3 TESTS
  • Software quality assurance engineer

    Prepare and execute test plans for professional and residential tripleplay routers, for various customers (Deutsche Telekom, CableVision, BT, Orange, TCOM, Telkom SA,....) - Creating qualification test plans from technical customers specifications. - IP services validation (DHCP, DNS, NTP…) - Analyze and describe defects … more

    Prepare and execute test plans for professional and residential tripleplay routers, for various customers (Deutsche Telekom, CableVision, BT, Orange, TCOM, Telkom SA,....) - Creating qualification test plans from technical customers specifications. - IP services validation (DHCP, DNS, NTP…) - Analyze and describe defects. - Analyze network capture (Wireshark, TCPdump) - Testing router's web UI - Check IP services quality (Triple play, QoS) - Testing tools administration (SmartBits, IxChariot, CDRouter, SAFIRE, FaxLab, DSLA, Abacus,…) - Remote devices management via TR69 protocol (ACS Motive server) - VoIP platform administration (Asterisk, Brekeke, GnuGK and Openser). - Participate in making a generic test plan for VoIP conformance - DLNA/UPnP certification tests - Manage testing with open source tools (Teslink, Bugzilla, WebtoProject…) - Write validation reports.  less

    dhcp dns ftp asterisk sip arabic french translation-english-french translation-french-english translation-arabic-english translation-english-arabic bugzilla defect-tracking ssl 00 more less
    • $20.00 HOURLY RATE
    • NO FEEDBACK GIVEN
    • 0 HOURS
    • TUNISIA
    • LAST ACTIVE
    • 0 PORTFOLIO ITEMS
    • 0 TESTS
  • Linux System Administrator

    System Administration is the key area I’ve enjoyed a lot to work with from the very first day when I actually started my professional career. The achievements range from setting up, installing, configuring, troubleshooting & monitoring UNIX, Solaris & Linux servers … more

    System Administration is the key area I’ve enjoyed a lot to work with from the very first day when I actually started my professional career. The achievements range from setting up, installing, configuring, troubleshooting & monitoring UNIX, Solaris & Linux servers, VoIP, Web & LAMP servers especially having CentOS, Ubuntu & Red-Hat as major distributions. Specialities: System Administration (Linux, UNIX, Solaris) FTP, DNS, BIND, LAMP Apache, Tomcat, MySQL IP Tables, CSF, APF Firewalls Servers Installation: yum, RPM, Source Bugzilla, Bedbugs, Jira Web Hosting, cPanel, WHM, SSL Nagios, Pandora FMS Server’s Monitoring  less

    sip security iptables centos technical-support customer-support email-technical-support chat-support ssh ftp load-testing ubuntu mysql linux-system-administration administrative-support cpanel whm lamp-administration nagios whmcs article-writing 00 more less
    • $10.00 HOURLY RATE
    • 4.4
    • 574 HOURS
    • PAKISTAN
    • LAST ACTIVE
    • 2 PORTFOLIO ITEMS
    • 0 TESTS
    ASSOCIATED WITH:
loading