VoIP Developers For Hire

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  • Contratar AbrahamBU
    5.4
    26 comentários $20 Dólares por hora
    *Dedicated Freelancer* 9+ Years Robust Experience as a Lead Engineer. Master in c405d55a53VoIPbd298b3441 Platforms and Integration with other components of OSS/BSS, Telecom Networks and CRM products. CCIE Level ... with Mobile Network Infrastructure as well as OSS/BSS platforms in Carrier WiFi, Carrier c405d55a53VoIPbd298b3441 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 c405d55a53VoIPbd298b3441/Network tech and devices Ability to train, motivate and supervise a team Kindly please contact me for more details.
    *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. menos
  • Contratar captek
    6.4
    7 comentários $15 Dólares por hora
    Over 9+ Years experience in c405d55a53VoIPbd298b3441 Softwares & Application, Web & Smartphones Applications, WebRTC, Website Design/Development, IVR. c405d55a53VoIPbd298b3441 Service: - Asterisk/Freeswitch/A2billing Setup - IPPBX Setup ... Chat Implementation - Travelling, Navigation, and Weather forecasting Apps - c405d55a53VoIPbd298b3441/SIP Mobile Dialer - Restaurant Application - ecommerce Application Web Design & Development - Static/dynamic Site
    Over 9+ Years experience in VoIP Softwares & Application, Web & Smartphones Applications, WebRTC, Website Design/Development, IVR. VoIP Service: - Asterisk/Freeswitch/A2billing Setup - IPPBX Setup & Configuration - CallCenter Software - DID Management - Auto/Predictive Dialer - Audio/Video Conferencing - Mobile Dialers - Agent/Reseller Management - Distributed Server Architecture with Load Balancing - Server Maintenance & 24*7 Support WebRTC Application Development -Kurento -OpenTok -AppRTC Smartphone Application Development: - Location Based Applications - Social Networking - SMS, IM Chat Implementation - Travelling, Navigation, and Weather forecasting Apps - VoIP/SIP Mobile Dialer - Restaurant Application - ecommerce Application Web Design & Development - Static/dynamic Site design - Joomla, Wordpress, Bigcommerce, Magento, Drupal, YII Framework - Custom shopping cart implementation - Differnt category/domain websites - Ecommerce Sites - Content Management System menos
  • Contratar altr
    5.0
    27 comentários $30 Dólares por hora
    - c405d55a53VoIPbd298b3441 Expert with more than 7 years experience in FreePBX, Elastix, PBX in a Flash (PIAF), ViciDial and other Asterisk-based systems. - Freeswitch and Sangoma solutions expert - Asterisk failover
    - VoIP Expert with more than 7 years experience in FreePBX, Elastix, PBX in a Flash (PIAF), ViciDial and other Asterisk-based systems. - Freeswitch and Sangoma solutions expert - Asterisk failover clusters - A2Billing Expert (Installation, Administration, Customization) - Chan_dongle comprehensive solutions (GSM gateways, SIM Card diversion, Calls and SMS forwarding, SMS2EMAIL...) - Administering and configuring of PRI and FXO/FXS cards as well (Digium, Sangoma...) - Administering and configuring Mitel, Cisco, Linksys, Yealink phones and softphones. Provisioning solutions. - Administering and configuring GSM Gateways: GoIP, Etel, OpenVOX... - ANTIBLOCK IP AND TRAFFIC COMPRESSION solutions for censored countries such as Pakistan, Iran, China... - Unix/Linux/Windows admin and script writer. - USB over IP solutions for Windows and Linux - Expert in Zabbix-based monitoring solutions. - Web Security Expert: security audits, ethical hacking... - Post-project support included as well!!! menos
  • Contratar alexcrtelecom
    3.4
    2 comentários $35 Dólares por hora
    c405d55a53VoIPbd298b3441 Engineer more 9 years Asterisk experience c405d55a53VoIPbd298b3441 * Asterisk development & support * Trixbox * FreePBX * TDM & E1/T1 (PRI) configuration * Digium cards support * SS7 * Dialplan & IVR development
    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 menos
  • Contratar abusayed2004
    5.7
    38 comentários $30 Dólares por hora
    Work 8 years on server security, cloud, AWS, GCP, OpenStack, c405d55a53VoIPbd298b3441, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, c405d55a53VoIPSwitchbd298b3441, Oracle DB, RHEVM, OpenStack, Mysql Red hat, PHP scriptwriter ... • Services Optimization • Security Hardening • c405d55a53VoIPbd298b3441, Asterisk, SMS, Dongle, FreePBX install configure, maintain • Malware Removal • Infrastructure Planning • Disaster Recovery • Shell Scripting • Capacity
    Work 8 years on server security, cloud, AWS, GCP, OpenStack, VoIP, Asterisk, Vtiger CRM, Open VPN, CentOS, Ubuntu, Redhat, VoIPSwitch, Oracle DB, RHEVM, OpenStack, Mysql Red hat, 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 • Malware Removal • 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 • 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 menos
  • Contratar osypets
    3.4
    2 comentários $45 Dólares por hora
    services "in the cloud". I also have extensive experience in the installation and support c405d55a53VOIPbd298b3441-based systems (Cisco, Avaya, Asterisk, Freeswitch, etc). My knowledge and services Clouds - Amazon ... / QoS; c405d55a53VOIPbd298b3441 - SIP/H323; - Truks - Routing; - Device provisioning; - IVRs - Call Center; Storage - SAN; - Backup solutions; - Data Recovery; Technologies - Virtualization; - High
    About me About 7 years I worked as system administrator at a company that provides SaaS-service from Microsoft and Linux/Windows VPS-service. Part of my job is related to the migration of customer services "in the cloud". I also have extensive experience in the installation and support VOIP-based systems (Cisco, Avaya, Asterisk, Freeswitch, etc). My knowledge and services Clouds - Amazon; - Microsoft Azure; - MediaTemple; - DNS-services; Security - VPN - LT2P, PPTP, Site-to-Site, SSL ; - Firewall - IPS/IDS; - User-based policies - AD/LDAP/RADIUS integration; - DoS/DDoS; - Application and access control; - Antivirus solutions; Networking - L2/L3 switching, VLANs, Access control, Link aggregation, high availability; - Routing - Load balancing; - Traffic shaping / QoS; VOIP - SIP/H323; - Truks - Routing; - Device provisioning; - IVRs - Call Center; Storage - SAN; - Backup solutions; - Data Recovery; Technologies - Virtualization; - High availability; - Cloud computing; - SaaS, IaaS, DaaS; - Remote apps; OS - Windows Sever (2003, 2008R2, 2012R2); - Windows (XP, Vista, 7, 8); - Mac OS X; - Linux (Debian, Ubuntu, CentOS); Vendors - Microsoft, Cisco, HP, Lenovo, Fortinet, Alcatel, Avaya, Symantec, SonicWall, TrendMicro; menos
  • Contratar lmoraesoliveira
    1.4
    1 comentário $29 Dólares por hora
    AWS, c405d55a53Voipbd298b3441 telephone, Linux, Wordpress, HTML, PHP, CSS, Java Script, Web developer, SEO, Google Ads, Google Analytics, Digital Marketing;
    I worked over 10 years in IT area acting with differents tasks, such as system operator, customer support, shell script developer, project manager. I have some partners and sometimes we work together for delivery the best quality and time, depending the kind of task. Top Skills: Meta Trader 4 developer, Meta Trader 5 developer, MySql, Oracle, SQL, Project manager, PBX Server, Asterisk, Cloud AWS, Voip telephone, Linux, Wordpress, HTML, PHP, CSS, Java Script, Web developer, SEO, Google Ads, Google Analytics, Digital Marketing; menos
  • Contratar audigomez21
    1.4
    1 comentário $24 Dólares por hora
    I have extensive experience in the field, knowledge in c405d55a53voipbd298b3441, callcenter systems. experience in the following area : -Asterisk / Elastix / FreePBX / Issabel/Xorcom/GrandstreamUCM - Hosted PBX Solutions. - Asterisk Security. - Call Center Solutions (Vicidial,Goautodial).
    I have extensive experience in the field, knowledge in voip, callcenter systems. experience in the following area : -Asterisk / Elastix / FreePBX / Issabel/Xorcom/GrandstreamUCM - Hosted PBX Solutions. - Asterisk Security. - Call Center Solutions (Vicidial,Goautodial). menos
  • Contratar MoboticsTech
    4.7
    1 comentário $14 Dólares por hora
    Our Technologies Expertise:- Digital Media:- (SEO, SMO, PPC, Brand Management, Email Marketing, SMS Marketing) Asterisk:- (c405d55a53VoIPbd298b3441 call center solution, IPRN, c405d55a53VoIPbd298b3441 billing, EPBX, IVR, WebRTC) Web ... Technologies Expertise:- (Codeigniter, Laravel, Magento, Wordpress, Node js, Angular js, React js, HTML5, Bootstrap, Jquery, Ajax) Mobile Apps:- (IOS, Android, Hybrid- shopping cart app, c405d55a53VoIPbd298b3441 app
    WEBSITE AND MOBILE APP DEVELOPMENT COMPANY with High-level expertise with 6+ years of experience. Mobotics is an information technology solutions offers customized Web (PHP) and Mobile application (IOS, Android & Hybrid) development services. Strengths:- - High-quality custom development services - Able to work with client’s timezone - Successful record of 98% happy and satisfied clients Our Technologies Expertise:- Digital Media:- (SEO, SMO, PPC, Brand Management, Email Marketing, SMS Marketing) Asterisk:- (VoIP call center solution, IPRN, VoIP billing, EPBX, IVR, WebRTC) Web Technologies Expertise:- (Codeigniter, Laravel, Magento, Wordpress, Node js, Angular js, React js, HTML5, Bootstrap, Jquery, Ajax) Mobile Apps:- (IOS, Android, Hybrid- shopping cart app, VoIP app, chatting app, attendance management app etc) SMS & USSD Solutions:- (SMPP & HTTP protocol), Payment Gateway Integration. Our Other Technologies Expertise:- JQuery, Ajax menos
  • Contratar polto
    3.1
    1 comentário $20 Dólares por hora
    ( mosquitto lib) c405d55a53VOIPbd298b3441/SIP ( pjsip lib) Systems : Linux MAC OSX Embedded Linux Create Linux Embedded systems from scratch ( Cross Compiling
    Programming : c c++ Qt4 Qt5 node.js sql Technologies (Libraries): AUDIO ( portaudio lib ) IMAGE PROCESSING ( opencv lib) MQTT ( mosquitto lib) VOIP/SIP ( pjsip lib) Systems : Linux MAC OSX Embedded Linux Create Linux Embedded systems from scratch ( Cross Compiling) hardware Modules : Raspberry PI Arduino XBEE RFID GSM SIM800 SIM900 GPS MODBUS (TCP/IP) (RTU) CANBUS TOUCHSCREEN LORA PHPOC menos

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