VoIP Developers สำหรับการจ้างงาน

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  • จ้าง dailas
    5.4
    55 รีวิว $25 USD ต่อชั่วโมง
    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 ย่อ
  • จ้าง AbrahamBU
    5.5
    27 รีวิว $20 USD ต่อชั่วโมง
    *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. ย่อ
  • จ้าง AhmedMFakkar
    2.1
    3 รีวิว $10 USD ต่อชั่วโมง
    I'm network engineer holding Cisco CCNP certificate. I have 3 years of experience in Cisco networks. My specialties: - Design and configure Cisco networks - Packet tracer and GNS3 - Data analysis with Wireshark. - Make reports and summaries.
    I'm network engineer holding Cisco CCNP certificate. I have 3 years of experience in Cisco networks. My specialties: - Design and configure Cisco networks - Packet tracer and GNS3 - Data analysis with Wireshark. - Make reports and summaries. ย่อ
  • จ้าง FranMercedesG
    4.7
    21 รีวิว $40 USD ต่อชั่วโมง
    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. ย่อ
  • จ้าง arodrigue
    5.3
    41 รีวิว $35 USD ต่อชั่วโมง
    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. ย่อ
  • จ้าง topstar323
    3.7
    1 บทวิจารณ์ $35 USD ต่อชั่วโมง
    Dear Client I have been specializing in mobile & web for +7 years. I focus in countless fields but specialize in native iOS, Android, Xamarin, Web, Objective C, Java Script, etc. My goal is to take your vision and help you bring it to life. You may have never worked with developers before or understand one...
    Dear Client I have been specializing in mobile & web for +7 years. I focus in countless fields but specialize in native iOS, Android, Xamarin, Web, Objective C, Java Script, etc. My goal is to take your vision and help you bring it to life. You may have never worked with developers before or understand one line of code but that's not a problem. My clear communication style, expert development knowledge, experience in developer management, and results-oriented work ethic, will help get you to an MVP/Beta launch in the quickest amount of time without breaking the bank. We take the time, stress, and energy out of launching your project and always focus on customer satisfaction. Regards, ย่อ
  • จ้าง abusayed2004
    5.7
    39 รีวิว $30 USD ต่อชั่วโมง
    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...
    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 ย่อ
  • จ้าง alexcrtelecom
    3.6
    4 รีวิว $35 USD ต่อชั่วโมง
    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 ย่อ
  • จ้าง jkaranm
    2.5
    1 บทวิจารณ์ $20 USD ต่อชั่วโมง
    My company's business is to make yours effective & efficient. I own a small company doing outsourcing and digital marketing. You may check some sample works below from Data entry, Lead mining, email sending, Article Writing, to Proofreading/Editing, to Telemarketing, to Designs, etc. An experienced BPO Professional...
    My company's business is to make yours effective & efficient. I own a small company doing outsourcing and digital marketing. You may check some sample works below from Data entry, Lead mining, email sending, Article Writing, to Proofreading/Editing, to Telemarketing, to Designs, etc. An experienced BPO Professional looking for clients for my company's services. Have worked in the areas of BPO, Lead Generation, Sales Consultant, Customer Service/Support, Data Entry/Processing, VA, Technical Support SMM for many employers here in Freelancer and companies around the world. I do have a strong foundation in these areas. My company offer services such as Telemarketing, Customer Service, Graphics Design, Web Design, Business Plan, Technical Support, Data Entry, SSM, Research to name a few. If qualifications are suitable for you, please consider my small company's services for your next project. Also, me and my team were featured here in Freelancer. ย่อ
  • จ้าง LovelyVoice
    3.1
    1 บทวิจารณ์ $57 USD ต่อชั่วโมง
    Hi I’m Jennie and with my teenage daughter Pia we are Lovely Voice – professional voice over artists. We provide the experience needed for high-quality voice productions - delivering your message the way you want it heard! Between us we cover many genres of voice-over and would be thrilled to narrate your next project...
    Hi I’m Jennie and with my teenage daughter Pia we are Lovely Voice – professional voice over artists. We provide the experience needed for high-quality voice productions - delivering your message the way you want it heard! Between us we cover many genres of voice-over and would be thrilled to narrate your next project for you! I offer a versatile, engaging British/English neutral accent whilst Pia offers British and American neutral from tots to late teens and Norwegian too, if desired! We are experienced in international dubbing as well as precision timing needed for a flawless end production. As well as a voice talent I am a script writer, so if your script needs tweaking or you need a complete script created, I have the ability to listen and interpret what you want to say. I also train people in personal performance. With a wealth of experience between us, 5 star feedback, many satisfied clients and a 100% guarantee, we’d love to be the voice you choose! ย่อ

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