Hire the best Asterisk Consultants

Check out Asterisk Consultants with the skills you need for your next job.
Clients rate Asterisk Consultants
Rating is 4.7 out of 5.
4.7/5
based on 456 client reviews
  • $150 hourly
    A Top-Rated, Expert-Vetted VoIP/Software engineer with over 20 years of experience. My experience ranges from Asterisk/FreePBX phone systems, SMS messaging, Linux operating systems, to network administration. I believe you deserve a more professional, reliable, and personalized business experience, and I bring that mindset to every project. Whether I’m developing top-secret code for Lockheed Martin, or AI telephone agents for Nomo, or creating privacy-first communications for Mecca Hosting, Inc, or designing secure, high availability Asterisk systems for TeleConnx Inc., or handling difficult troubleshooting tasks, I always commit myself to the same standard: creative, client-first solutions and efficient, high-quality work, completed in a fraction of the time. I have a passion for transforming mundane phone interactions into exciting customer experiences, and I lean on decades of experience to create solutions that others would find impossible. In short, I can make your telephone system do pretty much anything, including turning on your coffee maker in the morning. I look forward to working with you!
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    FreePBX
    MySQL
    Kamailio
    Linux System Administration
    Amazon Web Services
    VoIP Administration
    API Development
    C
    VoIP Software
    LAMP Administration
    Session Initiation Protocol
    Linux
    VoIP
    Business with 10-99 Employees
  • $70 hourly
    I am consistent "Top Rated Plus" VoIP Developer on Upwork with numerous 5 star reviews including excessively positive feedback. 12+ years of experience in Custom VoIP Software Development. I have provided a wide range of IT solutions, including VoIP Development, Websites & Mobile Apps development for international businesses and start-up companies as well as for large enterprises. 🏆 Following are my area of experiences: ✓ VoIP / SIP / RTP ✓ OpenSIPs / Kamailio / OpenSER ✓ FreeSWITCH, FusionPBX, ASTPP, Lua Scripts ✓ Asterisk, FreePBX, A2billing ✓ RTPengine / MediaProxy / RTPproxy ✓ Twilio ✓ Linux & OpenSource Consulting ✓ MariaDB, MySQL, PostgreSQL (Database design & complex SQL query expert) ✓ PHP, Yii/Yii2, Apache, Nginx ✓ Android 🏆 I provide the following solutions: ✓ High scalable Least Cost Routing(LCR) with Fail-Over ✓ Session Border Controller(SBC) ✓ Click to call ✓ Class4 & Class5 Soft Switches ✓ SIP Proxy Server, SIP Load Balance & Fail-Over ✓ SIP Messaging Server, SIP Redirect Server ✓ IVR Application ✓ Fax over IP (FoIP), T38 Supported FAX Server, FAX to Email ✓ Shoutcast Server ✓ WebRTC SIP client ✓ PHP RESTfull API, Web Services for Mobile Application ✓ Web Applications ✓ Mobile Applications. My core competency lies in complete end-to-end IT solutions for VoIP, Web, and Mobile technologies. 👤 Reviews & feedback given by clients for successfully completion of largest projects ⭐⭐⭐⭐⭐ "Malay is an excellent VoIP expert and was able to do any task we could throw at him. Will be using his services again shortly as our go-to VoIP expert." ⭐⭐⭐⭐⭐ "Excellent at meeting deadlines. Outstanding at changing work hours to conform to my requirements. First-rate productivity levels. Extremely good communication and ability to explain and brainstorm in a group environment. Admirable at working with other random developers I brought into the project throughout the years. Malay and his team at Prayantech were able to tackle any task I through at them from Asterisks, FreeSwitch, Python PHP HTML JS Debian RHEL IP Tables working inside of multiple different cloud hosting environments his understanding of VPN and firewall security are excellent. I can’t say enough good things about this group I am certain we will be working together as a team for many years to come." ⭐⭐⭐⭐⭐ "Malay and his team were great to work with. Once we got in a flow, we were able to bring something to life I could not have done without him and his team. He was extremely aware of timelines and making time for our project during our "open hours" and working around the time change. Thank you Malay! Keep up the great work and I look forward to working with you soon!" ⭐⭐⭐⭐⭐ "It was a pleasure working with Malay. Very professional and to the point. they don't waste time and they want to finish your project as much as you want to."
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    MySQL
    OpenSIPS
    FreeSWITCH
    Yii
    PHP
    Kamailio
    Yii2
    API
    VoIP Software
    MariaDB
    Session Initiation Protocol
    Linux System Administration
    Database Administration
    VoIP Administration
    VoIP
  • $125 hourly
    I am an embedded systems engineer with backgrounds in Network and System Administration. Over the past 15 years, I have built a successful technology business and worked for international companies around the world. I am a dedicated project leader and experienced boots on the ground System Administrator with the skills necessary to complete your project. Currently I own a small company of just 3 that primarily provides custom/private cloud services Azure/AWS architecture and administration, Custom application deployment, DevOps, VoIP services and high performance databasing. I service small to medium sized business as well as the healthcare/government sectors. I currently specialize in: * Emergency Assistance / Debugging / Troubleshooting * Security Compliance - HIPAA/HITRUST, NIST, SOCx, ISO27001 & FedRAMP * High Availability/Redundant System Design * Amazon Web Services (AWS) / AWS Government * Microsoft Azure / Cloud for Government * Citrix XenServer / XenApp * VMware ESXi / vCenter / vRealize * VMware & Citrix platforms (Hardware & Hybrid) * Datacenter/Hardware Deployments (Worldwide) * VoIP (Voice Over IP) Services such as: FreePBX/PBXact, 3CX, Avaya IP Office, and more. * Custom Programming (Powershell, Bash, C++/C# - Limited to System Administration Functions) * Electronics & Embedded Systems Design * General System and Network Administration (Windows, Linux, Cisco IOS/PIX/NX-OS and more) Fractional CTO/CIO: * Departmental Restructuring * Procedures/Practices * Disaster Recovery & Patch management strategy * Policy/Plan Development * Sit-in consulting for strategy/planning meetings I also happily offer 24-hour emergency service and service contracts to individual businesses and Managed Service Providers! I am available 365 days a year 24 hours a day - please feel free to send me a message I typically respond within an hour. I can work with the following PSA/RMM Platforms: NinjaRMM, ConnectWise (manage & automate), SolarWinds n-able, Atera and ManageEngine products.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP Administration
    Penetration Testing
    Cloud Security Framework
    Linux System Administration
    FreePBX
    System Security
    Cloud Computing
    Microsoft Azure
    Citrix
    VMware Administration
    Phone System
    Windows Administration
    Linux System Administration
  • $25 hourly
    BE in Electronics and Telecommunication with 17 years of experience in Contact Center, IP Telephony, security, LAN / WAN installation and administration. VoIP: Cisco (CUCM, CUC, IM&P, UCCX, UCCE, CUBE, Voice Gateways), Avaya (IP Office 500v2, ACCS), Asterisk, FreePBX, 3CX, Skype for Business Video: Cisco Telepresence MX200/300/SX20, Telepresence Server, Telepresence Conductor Server, Avaya Scopia XT, Polycom Data Center: Vmware vSphere 6.x, Cisco UCS, Microsoft Hyper V, Citrix Xenserver, Oracle Virtual Box Cloud: Amazon Web Services, Google Cloud platform Storage: NetApp, Western Digital Network: - Cisco Routers (3900/2900,4331)) & Switches (6509, 3850, 2960), HP, Zylex, Microtik Routing Protocol: OSPF, EIRGP, BGP, RIP. Security: Cisco ISE, Cisco ASA 5500, Cisco FWSM, Palo Alto, Check Point, Cyberoam / Sophos, Fortinet, Dell Sonicwall, PFsense Wireless: Cisco 25XX/55XX, Ubiquiti, Mojo (AirTight) Network Tools: Wireshark, Solarwinds, Netflow, PRTG, Cacti Operating System: Windows 2008/2012/2016, CentOS, Ubuntu
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Cisco WLC
    Cisco UCS
    Juniper
    Sophos Sophos UTM
    Cisco ASA
    Fortinet
    VPN
    VoIP Administration
    Cisco ASA
    Microsoft Active Directory
    Cisco Router
    Cisco CallManager
  • $150 hourly
    Networking specialist whose qualifications include a certification in Helpdesk Management and Operations Management; and detailed knowledge of networking technologies and best practices. 22 years of experience in the creation and deployment of solutions protecting networks, systems and information assets for the Education sector as well as for diverse companies and organizations. Proficient in the following Systems/Technologies: Linux Based Systems (Ubuntu, Debian and CentOS); Windows Desktop (all), Asterisk VOIP Systems, Windows Server Operating Systems (2000-2019), Active Directory Administrator, VMWare Esxi 5.5 and 6, HyperV. Google Workspace Admin and Office 365 Admin, Sharepoint Admin. Experience with Blockchain technologies. LANs, WANs, VPNs, Routers, Firewalls, TCP/IP MS Office (Word, Excel, Outlook, Access, PowerPoint), MS Exchange (2000, 2003, 2007), Word Perfect Office, many others In my current role I work as a Tier 3 Escalations Engineer, NOC Engineer, Tier 3 VOIP Engineer, Data Center Engineer and Disaster Recovery Engineer. I look forward to discussing your specific technology project with you.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Blockchain
    Telecommunications Engineering
    FreePBX
    Microsoft SharePoint Administration
    Data Center Operations
    Mobile QA
    VMware ESX Server
    VMware Administration
    Network Administration
    Linux System Administration
    Windows Administration
    TCP/IP
    Windows Server
    Microsoft Exchange Server
  • $95 hourly
    16 years of building/maintaining/upgrading/securing/configuring computers 16 years of RedHat/CentOS/Debian Linux programming/administration 16 years of Microsoft Windows XP/NT/2k/2k3 workstation/server experience 16 years of TCP/IP Routing/NAT/Firewall using Cisco/Checkpoint/Linux/BSD 16 years of VoIP H.323/SIP/IAX with Asterisk/Kamailio/Freeswitch/Cisco 16 years of HTML/JS/CSS/PHP/PERL/BASH web-application development 9 Years of VMWare/ESXi/LXC/iSCSI/SAS virtualization/storage management 6 years of Audio/Video streaming using Flash/VideoLAN/Red5/Quicktime/HTML5 4 years of Docker/Kubernetes/Ansible/Terraform application development/deployment 4 years of Apple iOS/Android/Unity/Blender3D game/application development 3 years of HTML5/Full Stack Javascript/WebRTC testing/development
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Amazon ECS
    Amazon EC2
    VoIP Software
    Session Initiation Protocol
    AWS CloudFront
    Docker
    Kamailio
    AngularJS
    JavaScript
    NGINX
    FreeSWITCH
  • $50 hourly
    Asterisk | Kamailio | FreePBX | Big data | AWS |Azure |GCP | Linux | Unix | Ubuntu | Debian | Puppy | VoIP Expert | IBM Watson | Google API | A2Billing | WebRTC | PHP | JSP | MYSQL | Oracle|Ansible|Docker Thanks for looking at my profile! I'm an IT Engineer offering more than 15 years of professional-level experience. I have deployed many Enterprise and Mid-Size Cloud, Network, and VoIP solutions worldwide. I am a professional Freelancer under a single roof with excellent communication skills, a fast learner, computer literate, can handle multitasking work and a very reliable contractor. Particularly interested in client/server and relational network design & develop using C/C++,Java,Php and C#. Always been interested in migration projects, as well as close interaction with the VoIP platform. I am always eager to provide quality work to my honorable clients. Hourly or fixed-price contract rates are negotiable depending on the work. I’m always working in a friendly environment so that we can make long-term business relationships, and feel honored to have a continuously growing list of happy clients with positive feedback on my work. I will do my best to satisfy my clients to the fullest. Do not hesitate to ask any questions you may have or discuss any ideas I may help you with. I am very easy to talk with.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP Software
    Natural Language Processing
    MySQL
    Linux System Administration
    Telecommunications Engineering
    IBM Watson
    VoIP Administration
    FreePBX
    Session Initiation Protocol
    Red Hat Enterprise Linux
    VICIDIAL
    Google APIs
    Amazon Web Services
  • $40 hourly
    I have been developing Asterisk based telephony systems for more then 10 years and have very extensive, more than 20 years, Linux development experience. I have designed, developed and supported Asterisk based applications on the AWS EC2 and Google Compute Engine instances, which comprise both back and front-end components and include complex dial-plan and AGI/ARI/AMI programs, in the following areas: - Hosted multi-tenant telephony - Audio/Video Conference - Intelligent telephony load and stress test - WebRTC video, audio conferencing, dialing and screen sharing - Phone provisioning - SIP trunking - Load balancing - Database RealTime configuration I have experience in developing Asterisk custom modules that could be integrated into dial plan applications and communicate with client back end servers using sockets. I have very extensive customer support experience and good at writing user guides and developer documentations.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Kamailio
    Cloud Migration
    Android App Development
    WebRTC
    VoIP Software
    Linux System Administration
    JavaScript
    PHP
    C
  • $30 hourly
    I am a telephony engineer. I have good knowledge of SIP and PSTN. Experience: ● Asterisk; ● Alcatel-Lucent OXE 4400; ● System administrator linux (Centos, Ubuntu); ● FreePBX | Elastix | Kolmisoft MOR | Grandstream UCM | 3CX phone system | ● Pyhton, Bash, PHP scripting; ● GSM Gateway, ATA, SIP phone and etc. ● Zabbix ● Billing system Tariscope ● MySQL and PostgreSQL
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Linux System Administration
    VoIP Software
    VoIP Administration
    Grandstream
    FreePBX
    MySQL
    Session Initiation Protocol
    VoIP PBX
    Ubuntu
    Linux
    CentOS
    Python
    Bash
  • $40 hourly
    - Core VoIP development (embedded platforms) - VoIP systems & Appliances customization (Asterisk & FreePBX / Elastix / ViciDial, Freeswitch & FusionPBX) - SIP routing, hands on experience - over 10k calls per day (or 50+ concurrent calls) - vast knowledge of backend programming languages (C++, Perl, Python, Bash, Lua, PHP, MySQL stored proc) - Linux Security & Intrusion detection
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    FreePBX
    Automatic Speech Recognition
    Kamailio
    Linux System Administration
    WebRTC
    Project Management
    Bash
    VoIP Administration
    Perl
    PHP
    Python
    MySQL
  • $25 hourly
    I am a Network Engineer with experience of more than 8 years. I have good skills in both system administration/integration and software engineering. I have had a good experience with Linux system administration, VoIP and SS7/SIGTRAN solutions and some cloud computing using docker. I have a very good experience with C/C++, JAVA, C#, node.js, socket.io, php programming languages.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    SMS Gateway
    SMS
    API
    Linux System Administration
    JavaScript
    VoIP Administration
    Linux
    Kannel
    SMPP
    Docker
    PHP
    HTML
    C++
    C
  • $45 hourly
    My experience in the VOIP domain has been for 15 years. My customer satisfaction is my goal. I have extensive experience with Asterisk/Kamailio systems, as well as Linux and network administration. Ihave the ability to do advanced troubleshooting . My expertise on this: * Asterisk, Kamailio, OpenSips, FreePBX, A2billing, SIP, H323, IAX, Webrtc, hylafax, Asterisk-Pannel, iaxmodem, rtpproxy, MediaProxy, WebRTC, Eybeam, X-lite, SipML5, SMS API, IVR (Interactive Voice Record),Wireshark * IP routing, router configuration (cisco, iptables routing), switsh, Vlan, VPN (Ipsec linux, cisco vpn, fortigate, OpenFire). * Fail2ban, Iptables, OpenSwan, Squid,Cisco FirePower * Php, Mysql, Postgresql, sqlite, Mongodb, Bash , LUA , Java, AGI (Asterisk) * Roundcube, Zimbra, Zabbix, Smokeping, munin, Nagios, Cisco NetFlow, Vmware, Voipmonitor * Git, Ansible, bitbuket, atlassian My time is my value. So when you choosing me you can expect that job will be done in short terms and perfect. I don't like to do something that not need be done. @linkedin linkedincom/in/alaeddine-hertelli/ SKYP:alasupcom1
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    OpenSIPS
    Network Engineering
    Linux
    Wireshark
    FreePBX
    PostgreSQL
    VoIP
    Vtiger
    PHP
    MySQL
    Iptables
    Session Initiation Protocol
    Bash Programming
    Kamailio
  • $100 hourly
    Greetings! I am a proficient VoIP developer with a focus on Asterisk, Kamailio, and PHP Laravel, backed by substantial experience in backend development. Beyond this, I possess a strong AI background, enabling me to create cutting-edge VoIP solutions enriched with artificial intelligence capabilities. My Expertise Includes: VoIP: Asterisk, Kamailio, RtpEngine, SIP, RTP, SRTP, Call Center Solutions: Twilio, Sip trunk, Numbers Automation & Autopilot: Enhancing efficiency through smart processes Web Development: PHP Laravel, API development, Laravel Nova, Frontend Technologies: Vuejs, Tailwindcss, TailwindUI Database: Mysql, Redis, JSON for data storage and retrieval Version Control: Git, Github, Gitlab, Bitbucket, Gitflow Agile Project Management: Jira, Scrum, Trello for streamlined collaboration Server & Infrastructure: Linux, Centos, Ubuntu, Firewall, Fail2ban, Virtualization DevOps: Docker, Kubernetes, ensuring smooth and scalable deployments AWS: EKS (Elastic Kubernetes Service), ECS (Elastic Container Service), and comprehensive knowledge of other AWS services for a robust cloud infrastructure. AI Integration: Utilizing AI in VoIP solutions, including Text-to-Speech and Speech Recognition, to deliver personalized and interactive experiences over the phone. Chatbot Implementation: Creating intelligent chatbots for seamless communication and enhanced customer support in VoIP applications. I am enthusiastic about leveraging AI technologies to revolutionize VoIP solutions, providing exceptional user experiences and increased efficiency for your projects. Let's collaborate on long-term ventures and harness the potential of AI to transform your VoIP systems. Please feel free to reach out, and let's explore the possibilities together!
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP Administration
    Telecommunications
    VoIP
    Application Integration
    Telecommunications Engineering
    VoIP Software
    Kamailio
    API Development
    Linux System Administration
    Laravel
    API Integration
    PHP
  • $75 hourly
    Software developer with 20+ years experience. Many of these years in large telecommunication companies. Developed and project managed complex products. I am focused in a few areas. This focus and experience enables quicker turnaround for you. Expert in Twilio. Tier 1 partner of Twilio and recognized by Twilio itself. Expert in complex asterisk PBX setup for multi-extensions, multi-trunks, queues, hunt group, IVR. Complex IVRs, customizations and scripts for asterisk. Large PBX setup using Kamailio as proxy. Expert in developing large distributed systems using Amazon AWS. Expert in Roku. Developed several popular Roku Channels including that of Fortune 100 companies (Details provided on request)
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Twilio
    Zoho CRM
    Stripe
    PHP
    Apple TV Application
    Roku Development
    Amazon Web Services
    FreePBX
    Plivo
    Nexmo
    Twilio API
  • $45 hourly
    Hello everyone, I am Martin. I will do my best satisfy my clients to the fullest. I have worked as professional software developer for about 20 years and have good experience in: -Asterisk, FreePBX -FreeSwitch, FusionPBX -Kamailio, OpenSIPs -WebRTC -PHP, MySQL -c/c++ -JavaScript, Node.js, HTML5/CSS -Linux System Administration, Networking -git, SVN I'm always working in a friendly environment so that we can make long term business relationship. I feel honored to have a continuously growing list of happy clients with positive feedback on my work.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP
    Kamailio
    Session Initiation Protocol
    Vue.js
    PHP
    TypeScript
    JavaScript
    FreeSWITCH
    Node.js
    MySQL Programming
    FreePBX
  • $50 hourly
    There is some feedback: - Pavel was fantastic! My project hit a snag and I needed an FTP server configured quickly. When I couldn't complete the task myself, I asked for help. Pavel jumped in immediately and had me fixed in no time and friendly answered all my questions. This guy is a real problem solver! - Very smart when it comes to Linux systems, was able to help with our issue. - Very skilled and professional expert who solved all additional and unexpected problems with patience. He overdelivered and I can highly recommend working with him! - The problem was solved quickly and efficiently. - Pavel did a great job tracing the problem and solving it - Pleasure to work with. Skilled system administrator and network engineer with 18 years of hands-on experience. Know how to organise network in one office or in several offices connected via vpn. Unix system administrator, with a lot of experience in Linux and BSD distributions.. I have got working experience with: DNS; DHCP; LAMP-LEMP; FTP; SMTP; SNMP; ACL, firewalls and NAT; I have experience with cloud services (AWS, GCE, Vultr, DigitalOcean) and virtual infrastructure (vSphere, Hyper-V, Proxmox); I have got working experience with Monitoring (Zabbix); VoIP/IP telephony (Asterisk,FreePBX).
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    DNSsec
    WordPress
    Linux System Administration
    Firewall
    Apache Administration
    MySQL
    LAN Administration
    Session Initiation Protocol
    Squid
    Web Hosting
    Network Engineering
    VMware vSphere
    NGINX
  • $35 hourly
    1) Free PBX Expert (Installation, Development, Configuration, Technical Support). 2) Fusion PBX Expert (Installation, Development, Configuration, Technical Support) 3) Asterisk Expert (Installation, Development, Configuration, Technical Support). 4) Vicidial Expert (Installation, Development, Configuration, Technical Support). 5) Go Auto Dial Expert (Installation, Development, Configuration, Technical Support). 6) Fop2 Expert (Installation, Development, Configuration, Technical Support). 7) VOIP Expert. 8) IVRS (Design, Development, Configuration, Technical Support). 9) Linux, Mysql Database Expert. 10) Lua Expert. 11) PHP, Mysql, Perl expertise. 12) Rabbit MQ, Redis, Ha proxy Expertise. 13) Freeswitch (Development, Support, Installation) 14) AI / Voice Bot Expert using unimrcp. Projects Handel: 1) IPPBX. 2) Contact Center Solution. 3) SoftSwitch. 4) Autodialer/ Voice Broad Casting System/ Call Back System/Calling Card System. 5) IVRS/Voice Mail /Conference Solution. 6) Voice & SMS Broadcasting System. 7) VOIP Billing Solution. 8) PRI / ISDN/ GSM gateway Integration expert. 10) Solution Design Expert. 11) Architecture Expert. 12) Cloud / On-premises PBX/ contact center / Soft switch Deployment expert.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Linux System Administration
    MySQL
    VICIDIAL
    PHP
    OpenSIPS
    Session Initiation Protocol
    FreePBX
    VoIP Administration
    FreeSWITCH
  • $30 hourly
    Good Day I'm Daniel Krahenbuhl. Originally from Switzerland and living in Gdańsk Poland for the last couple of years. I can communicate in English, german and french (if needed :-)). I do enjoy working as a freelance software engineer and sometimes project manager (if the project is interesting). It would be awesome to connect with you and hear what cool projects you have in mind. Let's do it and happy days always. My general work experience: I design and write Software over the last 30 years Node.JS backend development Build API’s / Integrate third party API’s Experience in MySQL/MariaDB, MongoDB Voice/Video/Asterisk: I work with Asterisk since its; s beginnings (25 years ago)
Especially if you build large, scalable services. 
| designed some of the largest and most complex Asterisk system globally. During the years i also gained a lot of in-dept knowledge of Twilio, Pipedrive and Hubspot. Third party API Integrations I have a lot experience in integrating and using following API's Hubspot, Pipedrive, Insightly, Sendgrid, MailChimp, and many more Monday.com Over 7 years of expertise in transforming businesses through cutting-edge process optimization and seamless integrations. With 30 years of programming experience and a background in business consulting, I possess a unique set of skills to elevate your organization to new heights. At the core of my services lies Monday.com, a powerful platform that has revolutionized how businesses manage their workflows and projects. As a seasoned Monday.com specialist, I am adept at tailoring this robust tool to suit your specific needs, streamlining your processes, and enhancing collaboration across your entire team.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP
    Twilio API
    RESTful API
    Node.js
    API Development
    Pipedrive
    API Integration
    WebRTC
    FreePBX
    HubSpot
    PHP
    Stripe API
    Nagios Core
    API
  • $12 hourly
    I am VoIP/VICIDIAL/VICIBOX/Asterisk/FreePBX/GoAutodial/vTiger/3CX developer and solution provider with past 16+ years of rich experience. I have expertise in them, and so i am confident to serve you for the same. I have rich telecom, web and custom software development and support experience. I'm interested in your job & I guarantee doing it in short time. I didn’t ask for an upfront as I'm interested in building long term relationships based on trust because I'm confident with my quality of work.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    FreePBX
    CRM Software
    Firewall
    Call Center Management
    VICIDIAL
    Vtiger
    Web Design
    BPO Call Center
    WebRTC
    Search Engine Optimization
    VoIP
    WordPress
    Apache HTTP Server
    PHP
  • $25 hourly
    "Great experience. Would definitely work with Muneeb again in the future!" Shafique Wains | WAINS Solutions Hi, Muneeb here. Welcome, and thanks for being here! Let me do PHP Back-End, Website/Web Application/API Development, and Vicidial customization for you. You'll have a pro with 6 years of experience, who is ready to take any challenging step to prove himself for PHP Back-End | Website/Web Application | API Development | Vicidial related jobs. Skillset: PHP Laravel Codeigniter API Development and Integrations JavaScript, jQuery CRM integrations Vicidial development Feel free to reach me out with any questions. Hope to speak soon.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Custom PHP
    VICIDIAL
    Full-Stack Development
    Web Development
    MySQL
    JavaScript
    API Integration
    Laravel
    CodeIgniter
    PHP
    jQuery
  • $60 hourly
    Asterisk/FreePBX/Elastix, IVR, CRM, TTS, ASR, Virtual PBX, VAS, Voice Broadcast, SMS, VoIP, Contact & Call Center, Asterisk, Consulting, Development, click2call, callback, CRM: bitrix24, amocrm and etc
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    API Development
    A2Billing
    Scripting
    FreePBX
    SMS
    VoiceXML
    MySQL
    VoIP Software
    PHP
  • $20 hourly
    Very skilled Unix system administrator, with lot of experience in Linux ( Centos, Redhat, Fedora, Ubuntu, Debian, Gentoo, Slackware ), Solaris, xBSD ( FreeBSD, OpenBSD), vpn ( openswan - ipsec, openvpn, l2tp, pptp ), clustering ( LInux Virtual Server, Linux HA, vrrp, Solaris Cluster ), cloud computing, load balancing ( f5, haproxy ), VoIP ( asterisk ), databases ( MySQL, PostgreSQL), LDAP, web services ( Apache, Nginx, varnish ), security ( penetration testing, firewall policy design ), control panels ( CPanel, Plesk, Virtualmin, Ensim ), Virtualization ( VMWare Virtual infrastructure - VSphere, amazon EC2, KVM ), cleaning infected servers with malicious code, Anti spam solutions with ASSP ( Anti Spam SMTP Proxy ), amavis - clamav, spamassassin, mail services (Postfix,exim,qmail,Zimbra), versioning ( git, gitlab, etckeeper ), IDS ( snort, ossec ), Performance optimization and not limited to those above only, willing to expand my knowledge base to new horizons. As for Developing I am very experienced in C, PHP, Perl and many more to list.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Snort
    Varnish Cache
    CSS
    Linux System Administration
    GitLab
    PHP
    Git
    Perl
    MySQL
  • $40 hourly
    I have more then 8 years hands on work experience in ISP and VoIP Operator. My strength areas are troubleshooting, administration, design and implementation of IT systems. Specialization: # AWS: EC2, S3, VPC # Server OS Platform: Centos, Redhat, Ubuntu, Debian, Suse Linux. # Virtualization and Cloud: Openstack, Redhat KVM, Centos Overt, Proxmox. # Email: Exim, Postfix, Dovecot, Zimbra, SSL authentication, SPF, DKIM, PTR, DMARC. # VOIP: Asterisk, Elastix, FreePBX, a2billing, Vicidial, FreeSwitch, FusionPBX. # Other Application Server: DNS, FTP, DHCP, OpenVPN, PPTP, Proxy, Samba etc. Vendor Certification: # Red Hat Certified Engineer (RHCE) # Red Hat Certified System Administrator (RHCSA) # Red Hat Certified Specialist in Virtualization (RHCVA) Always ready to learn new Technology and Technique. Thank you in advance for your time and consideration.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    VoIP
    DevOps
    IPv6
    Dovecot
    Virtual Private Server
    VICIDIAL
    Zimbra Administration
    FreePBX
    Elastix
    Exim
    VoIP Administration
    Kubernetes
    Docker
    Linux System Administration
  • $68 hourly
    Our company, Innovations Applied LLC, has a wealth of experience creating and writing commercial web applications for b2b and b2c, supply chain, and streaming media. We are also Jitsi, 8x8, Zoom, and other video conferencing platform specialists, having produced many customized applications! We are proficient in Linux admin & Networking and have built full stack server environments including database clusters, application servers, VoIP and SIP integrations, and cloud computing environments. Skills: Laravel, React, ReactNative, Java, SQL, Agile practices, Mobile development, Swift, Objective-C, HTML, CSS, node.js, JavaScript, Linux, xAPI, Git, RESTful API, Jira, JSON, Ajax, Bootstrap, jQuery, hibernate, c3p0, C++, Python, Tomcat, Apache, Nginx, video.js, jwplayer, eclipse, Mautic Marketing Automation, HumHub Social Collaboration, OwnCloud Storage, LHC Help Chat, MySQL, FreeSWITCH, FusionPBX, Asterisk VoIP, Jitsi, Zoom SDK, Zoom Markeplace, Taiga, Wordpress, Canvas LMS, all kinds of streaming media, video production, video editing, UI/UX design and discovery, graphic design, SEO, and Lead generation.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Agile Project Management
    WebRTC
    VoIP
    FreeSWITCH
    Mobile App Development
    FreePBX
    Mautic
    Video Stream
    Zoom Video Conferencing
    PHP
    WordPress
  • $99 hourly
    With more than 20 years of experience as CEO, IT Director ,Manager and developer, I am seeking opportunities to work with you, to make a long lasting strong and reliable business relationship. Leading design, development, and delivery of complex projects and high-performance solutions. I have strong skills in automation, priorities and technical documentation writing and a proven history of bringing order to chaotic environments. 95% record of on-time project delivery with 99% history of staying within budget.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    FreePBX
    Oracle PL/SQL
    Perl
    Java
    JavaScript
    Unix Shell
    PHP
    Microsoft Visual Studio
    Microsoft VBScript
    VBA
    SQL
    MySQL
    Trixbox
    VICIDIAL
  • $130 hourly
    With over two decades of extensive experience in the world of programming, I've honed a knack for efficiency and innovation. I believe in optimizing time and delivering solutions that matter, constantly pushing the boundaries of what’s possible. From the age of 10, programming hasn't just been a job—it's been a calling. Whether you're looking for new project development or leveraging existing solutions, I’m your go-to expert. Experience: Twenty-two years of diverse commercial programming experience and 31+ years overall programming —from Linux administration and virtualization to end-user web development and complex billing systems for VoIP. Expert work with Asterisk since its inception and substantial experience with FreePBX, Trixbox, and a2billing. Proudly, I'm one of the contributing minds behind a2billing.org's trunk. My depth of expertise encompasses database administration and architecture, especially with MySQL and Postgres. Education: Master of Science in Computer Science (confirmed by WES) Technical Skills & Specializations: Languages: Python/Django, Javascript/jQuery, SQL, PHP, C/C++, Perl, Prolog/Lisp, and Forth. Platforms & Tools: Asterisk, Opensips, Kamailio, Callweaver (faxing). Noteworthy Contributions: Developed modules for FreePBX, Elastix, Trixbox, and a2billing. Philosophy: I stand for originality and meaningful impact. If a task doesn’t need to be done, I won’t push for it. Instead, I'll direct my energy towards novel and intriguing challenges, ensuring that you get the best of both worlds—innovation and efficiency.
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    Session Initiation Protocol
    C++
    PHP
    Kamailio
    MySQL
    Amazon EC2
    Linux System Administration
    SQL
    Elastix
    A2Billing
    VoIP Administration
    OpenSIPS
    FreePBX
    Virtualization
    Python
  • $60 hourly
    Having 10 years’ experience in Asterisk/OpenSips/Kamailio based application development. With over 6 plus years’ experience in WebRTC development along with 4 years’ experience in Windows development. Below are highlights of the projects and applications worked on: 1. Worked on all the Asterisk configuration changes, which even includes PJSIP. 2. Asterisk Event module (Which handles the request from NodeJS server and handles the events like play greeting, play MOH, Take input field, record greeting, making call, etc. it covers all the features and functionalities of asterisk) 3. Projects which deal with SIP WebRTC Client both Audio & Video. 4. JSON VOIP Client (Audio & Video). This was developed to overcome the loading of heavy SIP stack in browser or mobile. as a result we develop a simple JSON framework to make calls, with a server in the middle that converts to SIP and pushes calls to the asterisk server. 5. Applications for Video conferencing on WebRTC, which supports Peer to Peer in browsers, Android & iOS systems. 6. Applications for Video on WebRTC with SFU (Janus GateWay) in browser, Android & iOS systems. 7. Windows and Mac-based Video Conference applications. In short, we developed an application that is similar to Zoom Meetings. 8. Technologies used for applications like OpenSips/Kamailio only for Proxy, Registrar, and Load Balancing. 9. Worked on C# wpf WebRTC video conferencing service. 10. Worked on C# wpf PJSIP softphone application along with 11. Worked on electron.js with PJSIP softphone application. 12. Microsoft Teams SBC (Call To Teams)
    vsuc_fltilesrefresh_TrophyIcon Asterisk
    C
    Tableau
    React Native
    React
    Flutter
    WebRTC
    Session Initiation Protocol
    FreeSWITCH
    Swift
    Android
    C#
    C++
    Microsoft Windows
    Desktop Application
  • Want to browse more freelancers?
    Sign up

How it works

 

1. Post a job (it’s free)

Tell us what you need. Provide as many details as possible, but don’t worry about getting it perfect.

2. Talent comes to you

Get qualified proposals within 24 hours, and meet the candidates you’re excited about. Hire as soon as you’re ready.

3. Collaborate easily

Use Upwork to chat or video call, share files, and track project progress right from the app.

4. Payment simplified

Receive invoices and make payments through Upwork. Only pay for work you authorize.

Trusted by 5M+ businesses

At A Glance: Asterisk

Effective communication is the most powerful tool in the business world. Being able to interact with employees, customers, and other companies in an efficient and timely manner can be what helps define your business’ success. With all the technologies, platforms, and services available these days to help manage and optimize the way you communicate, it can be difficult to make sure your message is seen and not buried in someone’s inbox. Telecommunication provides the immediacy you need to manage a project, and Asterisk is available to help you manage your telecommunication needs. Asterisk provides a software solution to telephone private branch exchange (PBX), helping you create internal business telephone services that can interact and integrate with other online technologies.

Asterisk consultants are trained telecommunication professionals with specialized experience in Asterisk’s PBX software. A freelance Asterisk consultant is a cost-effective way to have the needs of your organization assessed and determine the most productive way to implement a PBX system that fits those needs. Asterisk consultants are capable of providing you with cost and maintenance information on the size and scale of a new system, or requirements for updating a currently installed system. Their telecommunication expertise can facilitate consultation on how best to integrate Asterisk with other technologies, such as voice over Internet protocols. Consultants can also provide information on how to use Asterisk for features like interactive voice menus, voicemail, and automatic call distribution. Asterisk consultants collaborate with your business to provide and optimize quality PBX systems and services.

Schedule a call