SIP Freelancers

Browse SIP job posts for project examples or post your job on Upwork for free!

SIP Job Cost Overview

Typical total cost of Upwork SIP projects based on completed and fixed-price jobs.

Upwork SIP Jobs Completed Quarterly

On average, 34 SIP projects are completed every quarter on Upwork.


Time to Complete Upwork SIP Jobs

Time needed to complete a SIP project on Upwork.

Average SIP Freelancer Feedback Score

SIP Upwork freelancers typically receive a client rating of 4.50.

Last updated: May 1, 2015

Popular SIP Searches

More options
Clear all filters
  1. Ankush Sharma

    Ankush Sharma

    SIP/VoIP Technical Support Expert

    India - Last active: 1 month ago - Tests: 3

    Over the last 7 Years, I worked on different types of platforms and technologies which includes SIP, VoIP, XMPP, NAT, netstat, Amazon Web Services, Wireshark, Windows 7/8, Windows server 2003, DHCP installation and configuration. I worked most of the years in support team, and gained good expertise in this field. I am seeking opportunities, and want to build right confidence with the clients.

    $22.00 /hr
    0 hours
  2. Neeraj Chand

    Neeraj Chand

    Asterisk/ VOIP/Video Conferencing Solutions Consultant

    Fiji - Last active: 7 days ago - Tests: 3 - Portfolio: 1

    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

    $50.00 /hr
    0 hours
  3. Thiago Winkler

    Thiago Winkler

    Project Manager / Scrum Master / JIRA Expert / VOIP Expert

    Brazil - Last active: 06/13/2012 - Tests: 1

    Experienced IT professional with international knowledge leading local and distributed teams of software developers, analysts and testers. Professional with technical background in Computer Science. Managerial skills are focused in continuous process improvement, project management and Agile methodology. For last 2 years I've been working with JIRA and Atlassian products, coordinating teams of developers and providing assistance to clients to configure, customize and maintain yours JIRA's environments. I have a lot of experience (3 years) with VOIP PABX softwares (like Asterisk) and complex VOIP environments. Also I have experience analysing communication protocols (SIP and H323). I'm working with software engineering on my current company where I'm responsable to define the process to our team of analysts, developers and testers. My experience in topics: • Managerial: -- Experienced Project Manager (PMI Member); -- Experienced Development Coordinator / Technical Leader; -- Experienced Business/System Analyst Leader; -- Experienced Scrum Master (Agile Methodologies); -- Experienced Process Developer and Integrator (merge of two companies); -- Knowledge of PMBoK methodologies; -- Knowledge and experience on CMMI implementation, training and evaluation; •Technical: -- Domain about Management Software (MS Project, MS Excel, MS Access, Dot.Project); -- Domain about Atlassian products (JIRA, Confluence, GreenHopper, Bonfire); -- Domain about UML (Unified Modelling Language) notation; -- Domain about Process Modelling Framework tools (EPF - Eclipse Process Framework) -- Knowledge in various languages (C, C++, Perl, PHP, Python, Delphi); -- Knowledge in Operational Systems (Linux Servers, Windows Server and MacOS); -- Knowledge in Web Architectures (Java, Web Services, APIs); -- Knowledge of telephony environments based on Voice Over IP (SIP and H323 protocol); -- Experience using and developing for Asterisk PABX IP software (AGI, IVR applications); -- Knowledge of VOIP software architectures (OpenSips, Sipproxd, RtpProxy, Cisco TCL); • Personal: -- Organized, responsible, engaged and committed. Problem solving and analytical skills, negotiation skills, multi- tasking and Mind Map user.

    $27.78 /hr
    20 hours
  4. Haseeeb Ahmad

    Haseeeb Ahmad

    Unified Communication Engineer

    Pakistan - Last active: 04/22/2014 - Tests: 1

    4 years experience in IPT network Designing, Deploying and T-shooting. Thrives in a customer focused, multi-site environment. Always meets client demands and develops good long-term customer relationships.So if there is any IPT deployment feel free to contact me.Am working on all kind of voice servers include CUCM, CME, UCCX, Unity Connection and Express, Cisco Video Conferencing solutions (Telepresence, Meeting Place), Huawei IPT (U1900, EGW1500 and Contact Centre), Asterisk (IVR, ACD, Messaging Server), Expert in deploying and T-shooting of following protocols and Signalling's H323,MGCP,SIP,SCCP,FXO,FXS,ISDN(T1 and E1 PRI),T1 CAS,Qsig

    $222.22 /hr
    0 hours
  5. Julfikar Ali

    Julfikar Ali

    Networking & QA Professional

    United States - Last active: 11/10/2014

    CCNA (Cisco Certified Network Associate) pursuing a Masters level in Computer Networking and Telecommunications System Management actively looking for some kind of challenging work in Industry like Hardware commissioning, Switching Systems, IP Systems, Quality Assurance and VoIP. Have good knowledge of working on Networking stuffs like Network Design, Managing IPs, Implementing ACL. Data Analysis and presenting them in Tableau. QA for website and Android &iOS applications.

    $20.00 /hr
    0 hours
  6. Jonathan Prospero

    Jonathan Prospero

    IT with Background in VoIP/SIP

    Philippines - Last active: 04/18/2014 - Tests: 1

    Worked as a call center agent for technical account (DSL), then established a computer shop (from hardware assembly to software installation). Then, went back to call center industry as CSR (billing specialist) for 2 years. Then shifted career as Network Engineer for Accenture and eventually became Senior Network Engineer specializing in SIP.

    $16.67 /hr
    0 hours
  7. Noman Ahmed

    Noman Ahmed

    Outsourcing specialist for European customers

    Belgium - Last active: 02/15/2014 - Tests: 2

    I am based in Belgium. I am specialized in providing offshore software development and outsourcing services. I have a team of dedicated and highly qualified engineers, developers and IT professionals in our offshore development center. Companies or individuals can hire services of my team to extend their technical resources. For European customers I work as your local IT partner and provides on-site support, coordination and project management to help achieve business objectives in timely and cost effective manner. Service Description: -- Outsourcing: I can provide you a complete software team dedicated to your project. You can hire a virtual team or individual engineers part time or full time. -- Onsite support: I can also provide you exclusive, dedicated full-time technical staff on demand with in Europe at your premises. -- Services: I can deliver a full range of IT services to companies and individuals: - Web & Software Development - System, Network and Security Administration - Technical Support - IT Consulting - 24x7 managed technical services, server management and technical support - Initial server setup , tuning and configuration - 24 x 7 server monitoring and 24 x 7 troubleshooting - programming for Andorid and iOs (iPhone, iPad) - Website design and development customized to your requirements. - Applications for Andorid devices, iPhone, iPad - Network programming

    $33.33 /hr
    0 hours
  8. Dung Nguyen

    Dung Nguyen

    VoIP telecom experienced tester

    Vietnam - Last active: 10/17/2013 - Tests: 3

    I have been working as a VoIP telecom tester for nearly 5 years and have experienced many telecom systems such as Nortel, Genband, Avaya, Ericsson. I'm familar with ISUP, H.248, SIP and other protocols which are used in telecom. Especially, I'm very good at verifying SIP protocol by using SIPP and many other SIP tools. If you need a tester to verify your systems by your own tool, I can be fit to that work since I have skill of studying new tools and enquiry new knowledge. I have experience in working with people around the world such as people in USA, Canada, China, India and Turkey. I can guarantee that the work will be done in a specified time window and effectively. Moreover, you pay less for the better work.

    $16.67 /hr
    0 hours
  9. Andres Garcia

    Andres Garcia

    Telecommunications engineer VoIP/SIP

    Colombia - Last active: 07/25/2014 - Tests: 4

    I'm a telecommunications engineer with more than six years of experience in multiple branded NGN networks, hands on operation, maintenance, and configuration of Cisco routers and switches, Huawei routers, switches, softswitch, universal media gateway, Tektronix spectra, acme packet Session border controller and wireshark. I am a very fast learner, on my entry to Huawei I did not know anything about VoIP or anything regarding the technology, but a week later I was the best Engineer at the NOC and they ask me to made a presentation for the customer Comcel, in which everyone congratulate me, I also learn Excel Macros for making statistical reports from RAW data obtained from the platform, And configure a CentOS Radius authentication server for the platform. All of the above without former instruction and those were my ideas to improve security and leave tedious work of copying and pasting information to an Excel spreadsheet. I was in charge of the platform security giving and configuring all the security policies for each equipment in the platform, I wrote the manual for doing this, so anyone could do it after.

    $22.22 /hr
    0 hours