Thuê VoIP Developers

  • VoIP
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  • Thuê abusayed2004
    6.0
    45 đánh giá $30 USD mỗi giờ
    Work 9 years on server security, cloud, AWS, OpenStack, VoIP, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, OpenStack, Mysql Red hat, Python, PHP scriptwriter for IVR and AGI implementation on asterisk, have a good team for support and further development. Puppy Linux...
    Work 9 years on server security, cloud, AWS, OpenStack, VoIP, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, OpenStack, Mysql Red hat, Python, PHP scriptwriter for IVR and AGI implementation on asterisk, have a good team for support and further development. Puppy Linux customization. • Linux - Hosting Systems Administration & Monitoring • Devops • Services Optimization • Security Hardening • VoIP, Asterisk, SMS, Dongle, FreePBX install configure, maintain • Infrastructure Planning • Disaster Recovery • Shell Scripting • Capacity planning, application delivery planning • Network Troubleshoot, Spanning Tree, PVST, RSTP, HSRP, RIP, BGP, EGRP IGRP, MPLS • SAN Troubleshoot • Glusterfs, CEPH • NFS, SMB, ISCSI, SMTP • Linux performance tuning • MySQL, Oracle DB performance tuning • Laravel web application development • Web Security, Web benchmark, best practice • IPTV, Live streaming, VOD, FFmpeg • Raspberry Pi ít hơn
  • Thuê octopus823
    3.4
    3 đánh giá $35 USD mỗi giờ
    "There are many elephants in the field, but only one leads " I am a director of a software development team trying to be the first class in world. My team have worked FULL time here and done the best to provide our clients with the best products. By my team, over 500 apps have been designed , developed and...
    "There are many elephants in the field, but only one leads " I am a director of a software development team trying to be the first class in world. My team have worked FULL time here and done the best to provide our clients with the best products. By my team, over 500 apps have been designed , developed and delivered to the clients on this site so far. My mission is to provide tomorrow's solutions today, and to maximize customer satisfaction through innovative idea and app with the best quality. My team can provide you with the following apps: - Android and iPhone Apps - Websites and it's Hosting - Linux, MAC OS X, Windows based System applications - Application Software(c,c++,Qt) for all purposes ít hơn
  • Thuê kzaouli05
    5.1
    12 đánh giá $25 USD mỗi giờ
    Telecom/WebHosting/Voip/PBX/System administrator, +15 years of experience in Installing, configuring and managing Systems, Asterisk, Autodialing, FreePBX, Vicidial, GoAutodial, A2billing, IVR, Voice to Mail, Predictive Dialing, Calling Cards(PIN), Voice/SMS BroadCasting, WebRTC, WebPhone, WSS. As a company, we are...
    Telecom/WebHosting/Voip/PBX/System administrator, +15 years of experience in Installing, configuring and managing Systems, Asterisk, Autodialing, FreePBX, Vicidial, GoAutodial, A2billing, IVR, Voice to Mail, Predictive Dialing, Calling Cards(PIN), Voice/SMS BroadCasting, WebRTC, WebPhone, WSS. As a company, we are a SIP VoIP Provider with competitive rates and the HIGHEST availability levels within multi Systems integration for large traffic. We offer VoIP multi-systems installation packs, multi machines and deliver "All in one unified solution" to support large traffic, billing system , Trunks management, users payment gateways, reports, recordings, security and Web SIP Registration/Login portal. Depend your needs, startup, medium, large usage, welcome to the game. Regards, Kamal zaouli ít hơn
  • Thuê AbrahamBU
    5.5
    29 đánh giá $20 USD mỗi giờ
    *Dedicated Freelancer* 9+ Years Robust Experience as a Lead Engineer. Master in VoIP Platforms and Integration with other components of OSS/BSS, Telecom Networks and CRM products. CCIE Level Network Knowledge and Robust Telecom Experience. (NOC Manager) Expert in WebRTC and Asterisk along with a deep...
    *Dedicated Freelancer* 9+ Years Robust Experience as a Lead Engineer. Master in VoIP Platforms and Integration with other components of OSS/BSS, Telecom Networks and CRM products. CCIE Level Network Knowledge and Robust Telecom Experience. (NOC Manager) Expert in WebRTC and Asterisk along with a deep understanding and experience in Signalling and Media protocols, furthermore in Secure calling and Media encryption. Having 100++ successful setup and integration, I am fully familiar with every single issue or bugs you may face in WebRTC related projects and Asterisk. I am also experienced with Mobile Network Infrastructure as well as OSS/BSS platforms in Carrier WiFi, Carrier VoIP and general concept of Mobile Data Offloading. I did also managed to run a massive ISP with +500000 customer base and +200000 live users. hands on experience on various VoIP/Network tech and devices Ability to train, motivate and supervise a team Kindly please contact me for more details. ít hơn
  • Thuê FranMercedesG
    5.0
    37 đánh giá $40 USD mỗi giờ
    ● Linux/Unix System Administration - Installation and Configuration Storage: ISCSI, DRBD, GlusterFS, and Ceph. File servers: FTP, NFS, and Samba. Web Server: Apache, Tomcat, and Nginx. Database: MySQL, Postgres, MongoDB Cache & Proxy: Squid, Nginx, and Lusca. Mail Server: Postfix, Sendmail, IredMail, Qmail, and...
    ● Linux/Unix System Administration - Installation and Configuration Storage: ISCSI, DRBD, GlusterFS, and Ceph. File servers: FTP, NFS, and Samba. Web Server: Apache, Tomcat, and Nginx. Database: MySQL, Postgres, MongoDB Cache & Proxy: Squid, Nginx, and Lusca. Mail Server: Postfix, Sendmail, IredMail, Qmail, and Zimbra. Automation: Ansible. Network Services: DNS, NTP, VPN, and DHCP. Identity Authentication: OpenLDAP, and FreeIPA. Security: IPtables, Firewalld, SELINUX Monitoring: Nagios, Zabbix, and Cacti. ● Virtualization and Cloud Computing KVM: Proxmox, RHEV, and OVIRT VMware: VSphere 5.x, VSphere 6.x ClOUD: OpenStack Hyper-V ● Networking and Security Firewalls, Routers, Load Balancers: MikroTik, VyOS, Zeroshell, and PFsense. VPN: Management and configure Site-to-Site/VPN-as-Service (L2TP-PPTP/OVPN) ● VoIP Asterisk / Elastix / FreePBX / Issabel Hosted PBX Solutions. Asterisk Security Call Center Solutions (Vicidial,Goautodial). Custom Asterisk Development (PHPAGI,Bash Scripting). ít hơn
  • Thuê dailas
    5.5
    59 đánh giá $25 USD mỗi giờ
    Specialties: IT Management, Network Engineering, MS Windows & Linux administration, Asterisk PBX (dCAA), FreePBX (SCE), user support, computer maintenance and support, Web-services, CCTV More than 5 years of Asterisk PBX (plain, elastix, FreePBX) administration and support. Digium Certified Asterisk...
    Specialties: IT Management, Network Engineering, MS Windows & Linux administration, Asterisk PBX (dCAA), FreePBX (SCE), user support, computer maintenance and support, Web-services, CCTV More than 5 years of Asterisk PBX (plain, elastix, FreePBX) administration and support. Digium Certified Asterisk Administrator FreePBX Sangoma Certified Essential PBXact Sangoma Certified Essential ít hơn
  • Thuê Erewin
    5.2
    20 đánh giá $30 USD mỗi giờ
    Hello. Most of my work is support current voip system. We have now many of them. Wholesale, PBX does not matter. Ask me for help. My main benefits is whole knowledge from unix to softphone. I have been working with VOIP since 2004. In every code i try to find logic. So, after many years i got many schemes to...
    Hello. Most of my work is support current voip system. We have now many of them. Wholesale, PBX does not matter. Ask me for help. My main benefits is whole knowledge from unix to softphone. I have been working with VOIP since 2004. In every code i try to find logic. So, after many years i got many schemes to realize any features. Most used software in my work are: Unix, Python, Django, PHP, Opensips, Kamailio, MySql, Postgres. ít hơn
  • Thuê TrueGardener
    4.0
    1 Nhận xét $39 USD mỗi giờ
    ✪ FAST SPEEDY & BEST QUALITY ✪ ◆ Angular JS, Angular 2, Angular 4, Angular 5 and Angular 6 ◆ Angular Material Ample Required ◆ Angular Ionic Any Version and React Native Any Version ◆ Video Streaming and Text Chat and Text2Voice ◆ React JS ◆ FFMpeg Expert ◆ Laravel And Vue.js ◆ Twilio and All Payment Gateway...
    ✪ FAST SPEEDY & BEST QUALITY ✪ ◆ Angular JS, Angular 2, Angular 4, Angular 5 and Angular 6 ◆ Angular Material Ample Required ◆ Angular Ionic Any Version and React Native Any Version ◆ Video Streaming and Text Chat and Text2Voice ◆ React JS ◆ FFMpeg Expert ◆ Laravel And Vue.js ◆ Twilio and All Payment Gateway Integration ◆ Codeigniter and Shopify and Zend expert ◆ Facebook Social App Integration ◆ Mobile Native App and NDK Expert ◆ Cocos 2dx and Html5 Game Expert YOUR SUCCESS IS MY SUCCESS Best regards. ít hơn
  • Thuê mmashiursalim
    1.2
    1 Nhận xét $10 USD mỗi giờ
    I have been in Computer/IT field since 1994. My objective is to find work which I can do from home as I have good communication skill. I am a fast learner, self motivated, reliable and I work hard. With a deep commitment to learning new skills as well as broadening current skills and abilities. I have long experience...
    I have been in Computer/IT field since 1994. My objective is to find work which I can do from home as I have good communication skill. I am a fast learner, self motivated, reliable and I work hard. With a deep commitment to learning new skills as well as broadening current skills and abilities. I have long experience in Computer Hardware & Network, Database, Programming and Telecommunication/VoIP field. Also can provide online or remote solution for any need. My skills: • Data Analysis/Survey • Data Entry • Database Management • Internet Research • Microsoft Office application • PC hardware/software trouble shooting • PDF/document Conversion • PHP • Proofreading • Telecommunication/VoIP related • VB Script/.NET ít hơn
  • Thuê tejoel
    4.7
    14 đánh giá $25 USD mỗi giờ
    I'm a developer with know knowledge with php, ajax,node js, angular js,html5, asterisk,kamailio, focused on solutions to increase sales as Automatic Dialers, Landing Pages, E-commerce, CRM. I was Developing with Frameworks like Zend Framework, Codeigniter, Angular JS, , nodejs, Doctrine, voice recognition and speech...
    I'm a developer with know knowledge with php, ajax,node js, angular js,html5, asterisk,kamailio, focused on solutions to increase sales as Automatic Dialers, Landing Pages, E-commerce, CRM. I was Developing with Frameworks like Zend Framework, Codeigniter, Angular JS, , nodejs, Doctrine, voice recognition and speech recognition with asterisk. i I have developed themes in magento 2 and wordpress plugin. I have made integrations with payment gateways like Paypal, well as RESTful Web Services. i have more the 8 years the experiencie in contact centers solutions. My webpage is http://www.codigodeventas.com ít hơn

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