VoIP Developers для найму

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  • Найняти larymonata
    5.4
    38 відгуків(-и) $25 USD на годину
    10 years experience with Asterisk, VoIP and Linux servers. I have extensive and practical experience with Asterisk and have developed many custom applications with asterisk. Listed below few of the applications that I built over asterisk. * Hosted and Multi Tenant PBX systems * Callcenter Solutions with...
    10 years experience with Asterisk, VoIP and Linux servers. I have extensive and practical experience with Asterisk and have developed many custom applications with asterisk. Listed below few of the applications that I built over asterisk. * Hosted and Multi Tenant PBX systems * Callcenter Solutions with predictive, preview and progressive dialing * Softswitch with billing solution * Auto dialers * Clicktocall solutions * IVR Solutions менше
  • Найняти tatynka317
    2.4
    1 відгук $45 USD на годину
    Hi I am a Ukrainian mobile app and web developer . I have good skills and rich experience with mobile app and web app development . I started coding from 16 years old since I had heard about Lyndsey Scott and she always fascinated me. She is my mentor and roll model for my life . Her beauty and intelligence...
    Hi I am a Ukrainian mobile app and web developer . I have good skills and rich experience with mobile app and web app development . I started coding from 16 years old since I had heard about Lyndsey Scott and she always fascinated me. She is my mentor and roll model for my life . Her beauty and intelligence attracted the notice of the world. I like her very much . I am charmed by her beauty as a model but like much her intelligence as an iOS app developer . She is not only a supermodel and actress but also a great mobile app developer. I want to be like her. A woman's intelligence is like a shining jewel and gem that keeps her beauty alive permanently . I am here and I am going to serve my customers by great intelligence of woman . I am sure I will do great job for you . I welcome you . Thank you . ---My key skills--- 1) Mobile app development ** Android ** iOS ** React Native 2) Web development ** PHP (Laravel, CodeIgniter) ** JavaScript ** React.js менше
  • Найняти arodrigue
    5.6
    50 відгуків(-и) $35 USD на годину
    Hello my name is Ambiorix, welcome to my profile. I'm an active member of the Asterisk community since 2007 . I'm always willing to make any demo at no cost before you hire me, just to make sure I will provide you exactly what you are looking for. I have extensive, practical and relevant industry experience in the...
    Hello my name is Ambiorix, welcome to my profile. I'm an active member of the Asterisk community since 2007 . I'm always willing to make any demo at no cost before you hire me, just to make sure I will provide you exactly what you are looking for. I have extensive, practical and relevant industry experience in the following area : -> Asterisk and FreePBX customizations. -> Custom Asterisk Development (PHPAGI,Bash Scripting). -> Hosted PBX Solutions (Amazon AWS, DIgitalOcean, SolarVPS). -> Recording System -> Call Reporting (CDR) -> Complex IVR Solutions (Databases Integrations, Web app Integration). -> Call Center Solutions (Vicidial,Goautodial). -> Broadcasting System. -> Technical Consultancy. -> Asterisk & MYSQL-PHP Integration. -> Asterisk Security (Fail2ban, IPTABLES). -> PHP and MYSQL Developer. менше
  • Найняти dailas
    5.5
    59 відгуків(-и) $25 USD на годину
    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 менше
  • Найняти AbrahamBU
    5.5
    29 відгуків(-и) $20 USD на годину
    *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. менше
  • Найняти FranMercedesG
    4.9
    28 відгуків(-и) $40 USD на годину
    I Have been active in hosting and cloud field from last 7 years working on following technologies: I have extensive, practical and relevant industry experience in the following area : - Asterisk / Elastix / FreePBX / Issabel - Hosted PBX Solutions. - Asterisk Security. - Windows Server Administrations. - Custom...
    I Have been active in hosting and cloud field from last 7 years working on following technologies: I have extensive, practical and relevant industry experience in the following area : - Asterisk / Elastix / FreePBX / Issabel - Hosted PBX Solutions. - Asterisk Security. - Windows Server Administrations. - Custom Asterisk Development (PHPAGI,Bash Scripting). - Linux Server Administrations. - Networking. - SMTP Servers Setup. - FailOver, Load balancer, Clustering Setup - Security and Firewall setup - Call Center Solutions (Vicidial,Goautodial). - Backup and Disaster Recovery - Uptime Monitoring. менше
  • Найняти TrueGardener
    4.0
    1 відгук $35 USD на годину
    ✪ FAST SPEEDY & BEST QUALITY ✪ ◆ Angular JS, Angular 2, Angular 4, Angular 5 and Angular 6 ◆ Angular Material Ample Required ◆ 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...
    ✪ FAST SPEEDY & BEST QUALITY ✪ ◆ Angular JS, Angular 2, Angular 4, Angular 5 and Angular 6 ◆ Angular Material Ample Required ◆ 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. менше
  • Найняти alexcrtelecom
    3.6
    4 відгуків(-и) $35 USD на годину
    VoIP Engineer more 9 years Asterisk experience VoIP * Asterisk development & support * Trixbox * FreePBX * TDM & E1/T1 (PRI) configuration * Digium cards support * SS7 * Dialplan & IVR development with DB integration * Inbound/outbound call center * Gateway configuration, provisioning, support...
    VoIP Engineer more 9 years Asterisk experience VoIP * Asterisk development & support * Trixbox * FreePBX * TDM & E1/T1 (PRI) configuration * Digium cards support * SS7 * Dialplan & IVR development with DB integration * Inbound/outbound call center * Gateway configuration, provisioning, support (Sipura,Cisco,Grandstream, Digium.....) Linux OS: * Gentoo * Ubuntu * Fedora * RedHat * CentOS * Debian Networking * Apache, nginx * BIND * MySQL (adminstration, backup, replication, procedures) * SSHD * VSFTPD * PRO-FTPD * ..... Monitoring services * Zabbix (including integration with Asterisk) * Nagios * Cacti Asterisk installation and support - http://asterisk-service.com free help on Q&A - https://asterisk-service.com/forum/help-1 менше
  • Найняти nasirbest
    5.8
    12 відгуків(-и) $30 USD на годину
    ICTInnovations is a software company having specialization in Telecommunication Industry. ICT Innovations is a team of innovative, positive, objective, highly qualified and research oriented professionals having in depth knowledge of broad spectrum of Information and Communication Technologies (ICTs) with extensive...
    ICTInnovations is a software company having specialization in Telecommunication Industry. ICT Innovations is a team of innovative, positive, objective, highly qualified and research oriented professionals having in depth knowledge of broad spectrum of Information and Communication Technologies (ICTs) with extensive experience in open source Softwares, LAMP Development, Linux platforms, TCP/IP Networking and VOIP Communication Systems. менше
  • Найняти Asterisker
    4.9
    33 відгуків(-и) $14 USD на годину
    Work with VoIP and PSTN, experience with the signaling protocols: SIP, SDP, RTP, IAX2, H323, SS7, TLS, SRTP. Interfaces DAHDI, AMI, AGI, PRI. Setting up and supporting Call centre, about 30 operators. Setting up VoIP using Asterisk, dialplan creating, developing Asterisk code, PHP, bash. Assisting developers with...
    Work with VoIP and PSTN, experience with the signaling protocols: SIP, SDP, RTP, IAX2, H323, SS7, TLS, SRTP. Interfaces DAHDI, AMI, AGI, PRI. Setting up and supporting Call centre, about 30 operators. Setting up VoIP using Asterisk, dialplan creating, developing Asterisk code, PHP, bash. Assisting developers with any service-related issues or feature requests. Jointly managing a network of 300 phones. Reporting based on CDR, CEL, queue_log database data. Configuring VoIP gateways Cisco, Addpac, Allvoip, Linksys, Snom, Polycom, GrandStream, D-Link, softphone Zoiper Communicator. PSTN ATS Panasonic KX-TDA100 KX-TDA200. Auto-provisioning with xml files via TFTP, HTTP, HTTPS protocols. Testing with sipp. Data quality for associated reporting systems. Configuring and monitoring VoIP equepment with Zabbix, Cacti, Monit, MRTG Extensive experience administering Linux servers. (Centos, Debian) . Services Apache, NGINX, DNS DHCP TFTP MySQL. Some experience with virtualization on VMware ESXi менше

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