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  4. (Current) Cisco CallManager Specialists
  • US$85 hourly

    • 5.0/5
    • (130 jobs)
    Hello! I am a Telecommunications and Networking Specialist and I primarily work with Cisco networking technologies, both wired and wireless, routing, switching, IP telephony and VoIP. Since 1999 I have had the privilege of working with multi-site organisations where these technologies have been applied to the fullest extent. In most cases, the applications of these technologies have been on an “enterprise” scale, with hundreds of users (or even tens of thousands for some municipal Wi-Fi networks) and tens of locations. I've been designing and managing Cisco IP telephony and data networks as well as writing proposals, RFPs and technical writing projects for large scale organisations in both the public and private sector in multiple countries including the USA, the UK and Greece. I’ve been technical manager of European funded projects and administrator for IP Telephony networks, data networks, municipal Wi-Fi networks and metropolitan fibre optic networks. I have a CCNP certification and four CCNA certifications in Routing & Switching, Security, Voice and Wireless. I am currently working towards my CCNP Collaboration and my CCIE certifications. I am also an instructor for Cisco Academy. Although I live in Greece, I was born and raised in Canada, so English is my first language. My Philosophy: The quality of my work and my services are of great importance to me. My goal is to always be on time, consistent and pleasant to work with. I will be clear and concise from the beginning, letting you know what each job entails and how much time it will take. All this will be done honestly, without fanfare and with integrity. I would even say that I will be chivalrous with my obligations towards you. This is good for you, because you’ll get done what you need to get done. This is good for me as well, because you will be pleased with my work and you will give me a good review. It’s a win-win situation! So I look forward to having the pleasure of working with you.
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    Network Design
    VoIP Administration
    Cisco Router
    Network Planning
    Wireless Network Implementation
    Cisco Certified Network Professional
    Cisco Certified Network Associate
    Technical Writing
    Technical Documentation
  • US$65 hourly

    • 4.9/5
    • (89 jobs)
    🟢 Available 🕗📅Full Time Freelancer📅🕗 🔝🏆Top Rated Plus on Upwork 🏆🔝 💯100%✔️ Job Success💯100%✔️ ╰┈➤ Cisco CCIE Certified Engineer , have 12 years of experience with Network Solutions and worked for Cisco Gold Partenr Companies and support MegaCustomers around the world . ╰┈➤ Able to provide professional services ( Design,Deployment & Troubleshooting ) for below Solutions 👇 ✔ Cisco Collaboration Portfolio includes ( Cisco Call Manager CUCM , Unity Connection, IM&Presence,Jabber,Expressway MRA ,SIP CUBE , H323 MGCP Voice Gateway,Cisco Contact Center Express UCCX ,Cisco Meeting Server , WebEx Meeting and WebEx Calling ) ✔ Routing & Switching Network Portfolio incudes ( Cisco ISR Router,ASR Router , Catalyst Switches , Nexus Switches , Cisco SD-WAN Viptela , DNA Cisco SD-ACCESS, ACI ,Unifi Router and Switches ) ✔ Security Portfolio includes ( Fortinet,Fortegate,Palo Alto,SonicWall,Cisco FTD ,ASA,ISE,Sophos Firewall ) ✔ Microsoft Teams Administration and integration with SBC, SIP CUBE.
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    Cisco Certified Design Professional
    Cisco UCS
    Cisco Router
    Cisco Meraki
    Cisco Certified Design Expert
    Cisco Certified Network Associate
    Network Security
    Cisco ASA
    Cisco Certified Internetwork Expert
    Software-Defined Networking
    Network Design
    Cisco Certified Network Professional
    Network Administration
  • US$120 hourly

    • 5.0/5
    • (86 jobs)
    • CCNP Collaboration • Configure and troubleshoot Cisco Webex Calling • Transition customers from on-premise to Cisco Webex Calling • Extensive experience and training in designing, installing, and troubleshooting Cisco Unified Communications Manager, Unity Voice Mail, Unified Contact Center Express and other applications, Voice Gateways, and IP Phones • 3 years configuring, troubleshooting, and transitioning customers to Cisco Webex Calling • 22 years of configuring, troubleshooting, and testing Cisco Unified Communications Manager (CallManager) and other Cisco Applications • 24 networking experience • 24 operating system and Microsoft application experience • 24 years of project management experience • 24 years of installing, configuring, maintaining, and troubleshooting Cisco routers and switches
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    Cisco Certified Network Associate
    Cisco Certified Network Professional
    Session Initiation Protocol
    Cisco UCS
    VoIP Administration
    Cisco IOS
    Cisco Router
    VoIP
    Network Administration
  • US$90 hourly

    • 5.0/5
    • (32 jobs)
    Over 10 years experience with Cisco Collaboration products including Call Manager, Unity Connection, IM&P/Jabber, Expressway, Emergency Responder, Webex Meetings/Calling/Contact Center and etc. CCIE Collaboration certified. Mwraki, DUO, Umbrella Microsoft Teams Phone, Direct Routing, Microsoft Teams Room Migrations from legacy phone systems to Cloud calling. E911 Configurations, Dial Plans, PSTN, Telephone Number Porting, Solution Architecture, SBC experience - Audiocodes, Acme Packets, CUBE Azure and Microsoft Teams Voice experience including design, implementation, and support. Python, JavaScript automation experience.
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    Unity
    Cisco
    Cisco Unity Connection
    Microsoft Teams
    Cisco Router
    Session Initiation Protocol
    Cisco Certified Internetwork Expert
    VoIP Administration
  • US$75 hourly

    • 4.8/5
    • (75 jobs)
    Current Certifications: * CCENT ( Cisco Certified Network Technician ) * CCNA (Cisco Certified Network Admin (Routing & Switching)) * CCNP (Cisco Certified Network Professional (Routing & Switching)) * CCNA-SECURITY (Cisco Certified Network Security Admin) * SECURITY+ CE (CompTIA Certified SECURITY) * CEH (Certified Ethical Hacker) I am a Sr. Network and Security Engineer (SME) with expertise in Cisco Network Engineering and Cyber Security Engineering with year of I.T. experience managing private and government enterprise networks and Cyber security Network environments for large and small businesses . I have over 18+ years total experience as a lead Sr. network engineering SME as my foundation , and 9 yrs experience in Cyber Network Security infrastructure , design, configurations, troubleshooting, Cyber threat hunting. Also upgrading enterprise networks and security infrastructures for private companies , government organizations , including large and small business Networks and information systems. These skills include SME experience in Cisco Routing and Switching, ASA Firewalls, Palo Alto, Pfsense , VPNs, F5 Load balancer, WLAN, VoIP, and Cyber Security tools and SIEMS and Network Scanning, Windows Server, and WiFi networks.
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    VMWare
    System Configuration
    VoIP
    Ethical Hacking
    Cisco Certified Network Professional
    Cisco Certified Network Associate
    Cisco Router
    Cisco ASA
    VPN
    Firewall
  • US$30 hourly

    • 4.6/5
    • (125 jobs)
    BE in Electronics and Telecommunication with 20 years of experience in Firewall, Networks. VOIP, Wireless. Datacenter, Servers etc Security: Cisco ISE, Cisco Firepower, Cisco ASA 5500, Cisco Meraki, PaloAlto, Checkpoint, Sophos, Fortigate, Dell Sonicwall, Juniper, PFSense, Rapid7, Watchguard, Barracuda SEIM: Solarwinds, Wazuh, Splunk Network: - Cisco, HP, Brocade, Juniper, Zylex, Microtik, GPON/EPON, Ubiquiti VoIP: Cisco, Avaya, Asterisk, FreePBX, 3CX, Microsoft Teams, Grandstream Wireless: Cisco, Ubiquiti, Mojo (AirTight), Aruba, Video: Cisco Telepresence MX200/300/SX20, Telepresence Server, Telepresence Conductor Server, Avaya Scopia XT Data Center: VMware vSphere 7.x, Cisco UCS, Microsoft Hyper V, Citrix Xenserver, Oracle Virtual Box Applications: Microsoft SCCM, MS SQL Server, WSUS, Radius Server, Squid Proxy Server, Keypass, Wordpress Cloud: Amazon Web Services (AWS), Google Cloud platform, Microsoft Azure Cloud Storage: NetApp, Western Digital Routing Protocol: OSPF, EIRGP, BGP, RIP. Network Tools: Wireshark, Solarwinds, Netflow, PRTG, Cacti, Scrutinizer, Logzilla, Wazuh Operating System: Windows 2012/2016/2019, CentOS, Ubuntu
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    VoIP Administration
    Asterisk
    Cisco ASA
    Cisco UCS
    Microsoft Active Directory
    Cisco Router
    Sophos Sophos UTM
    Fortinet
    Juniper
    Cisco WLC
    VPN
  • US$45 hourly

    • 4.9/5
    • (63 jobs)
    IT Professional with experience as Administrator/Consultant in Servers, Virtualization, Networking, VoIP PBX, Azure and AWS Cloud System implementations. I work very hard, always giving my best and constantly improving my skills to learn new things to deliver the best project results to my clients. Having Top Notch skills in: -Designing and Implementing Linux Systems(Red Hat, Centos, Debian, Ubuntu, Suse, Fedora). -Windows System Administration (AD, DNS, DHCP, PKI, LDAP). Azure Administrator certified. -Administration of VMware ESXi and AWS (EC2, HFS, S3, RDS, Lambda) -Scripting languages: Python, PowerShell, Bash. -Administering Atlassian application stack: Jira, Confluence, BitBucket. -Enterprise Tools for Identity and AD management. -LDAP, GSuite, and SSO authentication systems management. -Terraform and Ansible. -AD, LDAP, Vulnerability Management, Networking, and Monitoring system -Administrator of Citrix and Citrix ADC implementations for applications delivery controlling -Cisco Systems ( Router, Switches, ASAs, Servers). -Asterisk PBX Systems(FreePBX, Elastix, FusionPX, ViciDial, goAutoDial, Kamailio, Call Centers Solutions, and integrations with CRMs). -Clustering Platforms (Web Servers, Mysql DataBase, Asterisk, FreePBX). -Exchange/Postfix/Zimbra Mail Servers. I can work by myself with minimum to no supervision. I'm also an outstanding team player, always willing to cooperate and give my input in needed situations. I'm very flexible with hours, and I maintain good communication.
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    Linux System Administration
    Cisco ASA
    Asterisk
    DevOps
    Cisco Certified Network Associate
    Deployment Automation
    VoIP Administration
    Kubernetes
    VICIDIAL
    Microsoft Exchange Server
    Microsoft Azure
    System Administration
  • US$35 hourly

    • 4.8/5
    • (40 jobs)
    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.
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    Linux System Administration
    MySQL
    VICIDIAL
    PHP
    OpenSIPS
    Session Initiation Protocol
    FreePBX
    VoIP Administration
    FreeSWITCH
    Asterisk
  • US$35 hourly

    • 4.9/5
    • (293 jobs)
    CCSE, ITILv3 , Fortinet NSE4 CCNP R&S,CCNP Security. In the last 12 years, I have been working on various network products and have gained comprehensive experience in Cisco, Fortinet, Sonicwall, Checkpoint, HP, F5, Radware technologies. I have been involved in the design, configuration, and troubleshooting of Network products. Firewalls: Cisco ASA 5500 Series Cisco ASA 5500-X Series Cisco Firepower 2100Series Cisco Firepower 4100Series Fortigate 400F Fortigate 200F Fortigate 100F Checkpoint 5800 Appliance Checkpoint 12400 Appliances Checkpoint 12600 Appliances Sonicwall TZ Series Sonicwall NSA Series Pfsense ZTNA FortiGate ZTNA Load Balancers: F5 BIG-IP Application Delivery Controllers Radware Application Delivery Controllers Array Application Delivery Controllers Fortinet Application Delivery Controllers. Routers: Cisco, Arista, HP Switches: Cisco Catalyst Cisco Nexus N5K & N9K HP Switches Wireless Controller & Access Points: Cisco WLC, Aruba WLC Unify WLC Meraki
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    Cisco Router
    Firewall
    SonicWall
    Cisco Firepower Threat Defense
    FortiGate Firewall
    Zero Trust Architecture
    Web Proxy
    Cisco ASA
    Cisco Certified Network Professional
    Load Balancing
    Check Point
    Network Security
    Cisco Meraki
    VPN
  • US$75 hourly

    • 5.0/5
    • (20 jobs)
    With over 10 years of experience, I specialize in Unified Communications (UC) solutions, including IP Contact Centre solutions. Technologies and solutions offered: o Contact Centre and IVR development (UCCX, UCCE, CVP, WebEx CC, NICE CXone / inContact, Zoom CC, Amazon Connect) o Unified Communications (Cisco CUCM/UC, Cisco CUBE, Zoom Phone, Microsoft Teams) Well-regarded for attention to detail, enthusiasm, and commitment to quality, I thrive in dynamic and fast-paced environments. My hands-on approach and deep technical understanding, consistently results in successful project implementations and satisfied clients. Whether it's designing complex UC solutions or optimizing Contact Centre operations, I'm passionate about leveraging technology to drive business growth and efficiency.
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    inContact
    NICE
    Call Center Software
    VoIP PBX
    Microsoft Teams
    Cisco
    Cisco IOS
    SQL
    VoIP Administration
    Wireless LAN Controller
    VoiceXML
    Cisco WLC
    Network Administration
    Cisco Meraki
  • US$40 hourly

    • 5.0/5
    • (17 jobs)
    10+ years experience in Cisco UC/IP telephony applications as well Cisco/Genesys Contact Center. Cisco CCIE Collaboration (available for rent, please reach out for further information) Genesys Certified Professional (GCP) - SIP Server 8 Consultant Should be able to help in following areas. + Deploy, upgrade, administer Cisco CUCM, CME, UCCE/UCCX, IP IVR, CVP, CUIC, CUC and supporting infrastructure, including SIP CUBE/SBC gateways of different vendors, CTI jtapi integrations and call recording + Deploy, upgrade, administer Genesys PureEngage and PureCloud + Deploy, upgrade, administer Yeastar PBX System + Develop and support ICM/IPIVR scripts, Cisco Gateway's TCL/VXML, CUCM AXL scripts, Genesys strategies/scripts as well as REST/PHP/MySQL/Javascript CC integrations. + SQL scripts and CC reports + Troubleshoot complex scenarios I am looking for projects in my spare time.
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    Tcl/Tk
    PHP
    JavaScript
    Session Initiation Protocol
    Cisco Certified Internetwork Expert
    VoIP Administration
    Cisco IOS
    VoiceXML
    VoIP Software
  • US$45 hourly

    • 5.0/5
    • (6 jobs)
    I have more than 5 years’ experience in design, installation, configuration and administration of telephone systems such as Cisco CME, cisco CUCM (v8,v9,v10,v11,12) Asterisk, AVAYA and other. In 2016 I had implemented three clusters of cisco UCM v11 with 2000+ users and 40 video terminals (SX10,SX20). I have experience in configuration of cisco: TMS, TMSPE, TMSXE, Conductor, Telepresence server, MCU, VCS, VCS expressway, MRA, JubberGuest. I can configure cisco CME: E1/T1, hardware conference bridges, CUBE, MTP etc. I have a lot of experience in routing and switching and can configure cisco and mikrotik devices.
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    Kamailio
    FreePBX
    Asterisk
    Avaya
    Cisco Certified Network Professional
    MikroTik RouterOS
    Cisco Router
    VoIP
  • US$25 hourly

    • 4.7/5
    • (46 jobs)
    We are working on Asterisk - VoIP solutions since 15 years onwards, we are having vast knowledge of all modules of Asterisk and dialer stuff, and we are also able to do integration with crms, clusters as well as other PBX systems for sending and receiving calls as well. We are experts install and configuring Asterisk, vicidial, Voice Broadcast, A2billing, PBX, Freepbx, Freeswitch, Twillio, Elastix, Advanced IVR, Web-meetme, Cloud Solution using Asterisk, SoundBox Dialer, GoAuto Dialer, Call Centre solutions, DID Management solution, Hylafax Solutions, etc .. We are popular as a VoIP open-source development company due to our expertise in building, scaling up, and maintaining the best open-source VoIP solutions. We have a team of VICIDial experts who specialize in this open-source call center software. We provide the development of custom features with source code, add-ons, etc. to add missing functionalities to this contact center solution. As a Leading VICIDial Development Company, Our VICIDial skin development and VICIDial theme customization services are popular due to the transformation of this software with better and enhanced UI and UX elements. We also provide various other VICIDial services to benefit its users. We can modify the dialer as per our client requirements like functionality, reports & custom GUI. We provide call center dialer software on the client-server with source code so you can modify it anytime in the future for your clients. ViciDial custom development * Complete configuration and customization for call centers * Inbound / Outbound strategies 1) miss call report we can setup 2) abandonded report 3) advanced agent performance report 4) sale history report 5) agent payment report 6) billing based on rates 7) custom dashboard for admin, managers 8) carrier reports with its hangup status 9) recording reports based on users, campaign 10) inbound/outbound separate custom reports Agent layout changes as per your requirement Trackdrive integration for posting third party call transfer on single click crm integration with posting via api webform posting via api data adjustment via api custom webphone for integration agent reports on same screen soundboard gui modifications and integration Asterisk * Installtion & Configuration * Dial Plan Designing * Advanced AGI scripting * System Integration, from small office to carrier-grade * Custom applications * Auto/mass dialing solutions A2Billing * Billing customization * Callback customization * CDR customization * IVR customization * Softphone Integration * Multi owner solution * Reseller solution * Clustering / Backup / Failover / Monitoring * Security / Hardening Trixbox / FreePBX / Elastix * Complete configuration * Customization Social skills: excellent in team, individual, on-site or remotely, relaxed or under stress. Organizational skills: excellent with analyst duties, alone or in a team, with project manager duties, with self-managed time, or with magnetic badge. Useful and cost-effective phone management system planning & designing & installation Expertises in Digium, Sangoma, Openvox and other type of PRI & PSTN Card installation. Connecting Multiple Asterisk Server & Cloud Solution for asterisk
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    Vtiger Development
    Vtiger
    SuiteCRM
    UX & UI
    GUI Design
    VICIDIAL
    Linux
    VoIP Software
    Asterisk
    A2Billing
    FreeSWITCH
    Session Initiation Protocol
    FreePBX
    Graphic Design
    Web Design
  • US$59 hourly

    • 5.0/5
    • (82 jobs)
    Am a CCIE#26611 with extensive experience in Routing & Switching, Security, Datacenter, Virtualization, Programmability & Automation. Am delivering unique & absolutely different service for the below technologies: * SDN Datacenter: Cisco ACI, VMware NSX, Nutanix Flow, Arista. * SDN Storage: Cisco HyperFlex, Nutanix HCI, VMware VSAN. * SDN Access: Cisco DNA, LISP Implementation, Cisco Spaces, Cisco ISE, PacketFence. * SDN WAN: Cisco SDWAN, VMware VeloCloud, SilverPeak, PaloAlto SDWAN, FortiGate SDWAN, Meraki. * Programmability & Automation Controllers: Python & API tools to automate business intent & workflows within networks, Ansible, Chef, NSO, Terraform, OpenShift. * Monitoring Applications: Zabbix, SolarWinds, Home Made Custom Tools, Nmap, Packet Tracer (Wireshark). * Routing & Switching and Wireless Technologies: Cisco, Mikrotik, Juniper, FS, Arista. * Security: Cisco, PaloAlto, Meraki, FortiNet, Ubiquiti, VMware MDM. * Datacenter, Cloud Computing, Cloud Native, Virtualization & HCI Solutions. * Public Cloud: Design, Setup & Administer Tenants on AWS, Azure. * Micro-segmentation & Containerized Applications: Docker, Kubernetes. * Private 5G Networks: Azure Private 5G Core. * API Gateways & Swagger Documentation. * Python Scripting for DevOps, SecOps, NetOps & IaC. * Technical Writing & Documentation. Please refer to my LinkedIn account aossama. Certifications: * CCIE Enterprise CCIE#26611. * Cisco CCNP DevNet. * Cisco CCNP Enterprise. * Cisco CCNP Datacenter. * Cisco ACI Certified Specialist.
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    Server & Virtualization Software
    Fortinet
    MikroTik
    Cisco Meraki
    Network Security
    Palo Alto Firewalls
    Network Design
    Network Monitoring
    Network Engineering
    Python
    Information Technology
    Cisco Certified Internetwork Expert
    Cisco ACI
    Software-Defined Networking
    Cisco
  • US$100 hourly

    • 4.9/5
    • (18 jobs)
    Fayçal Boujidane is a Senior Contact Center and Unified Communications Expert delivering solutions across a variety of customer access channels including voice, video, email, and web. In his 15+years of experience, he has consulted for dozens of US and global companies seeking to optimize their Contact Center and Unified Communications Solutions, including the Massachusetts General Hospital, the Brigham and Women Hospital, the University of Miami, EMC, Societe Generale, Moody’s Investors Service, and ExxonMobile to name a few. Fayçal holds a Master of Business Administration degree from the University of Massachusetts, and various technical industry certifications for the design and implementation of Cisco Contact Center and Unified Communications technologies including CCVP, CCNP, and Cisco Unified Contact Center Design, Implementation, and Support certifications. Fayçal also has over 6 years of experience as an adjunct professor teaching various Information Technology classes including Telecommunications, Network Design and Implementation, Information Systems Security, and Information Systems Management among others.
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    Cisco Certified Network Associate
    Cisco UCS
    Cisco Router
    Cisco Certified Network Professional
    VoIP
  • US$50 hourly

    • 4.8/5
    • (8 jobs)
    Cisco Collaboration Unified Solution Expert. I have more than 8 years of experience in VOIP Solutions with a certification of collaboration from Cisco I have worked in a lot of enterprise companies such as ( Orange Business -Egypt Air - Telecom Egypt … ) I could help in Cisco IPT & Contact Center (configuration, implementation, and Troubleshooting ) For Cisco IPT( IP Telephony):- ============== ✅CME ( Cisco Call Manger Express ) ✅ CUCM ( Cisco Unified Call Manager ) ✅CUC ( Cisco unity connection ) ✅CUBE & Cisco Voice gateway ✅ Cisco IM& Presences ✅UCCX ( Cisco Contact Center Express ) ✅Expressway C & E ✅ WebEx Calling ✅ And any other Cisco collaboration Product For Cisco Contact Center Enterprise:- ============================== ✅Cisco Ingress Gateway ✅Cisco CVP ✅Cisco PG (Agent PG & VRU PG) ✅Cisco ICM (Router & Logger) ✅Cisco AW, HD, DDS (Administration & Data Server) ✅Cisco Finesse ✅Cisco CUIC ✅Cisco VVB ✅Cisco Call Studio For Avaya Aura:- ------------------- ✅ Avaya Aura CM ✅ Avaya Aura Elite Contact Center ✅ G430 ✅G450 For Open Source :- ---------------------- ✅Issable free PBX - Elastix ✅Aheeva Contact Center ✅ Asterisk
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    PBX
    VoIP
    VoIP Administration
    IVR Software
    Cisco UCS
    Cisco Unity Connection
    Microsoft Teams
    VoIP PBX
    Avaya
    Cisco Certified Internetwork Expert
    VoIP Software
    Session Initiation Protocol
    Cisco IOS
    Cisco Router
  • US$75 hourly

    • 5.0/5
    • (71 jobs)
    "I'm only driven to deliver the best-quality, Hire me if you are looking for the same" My name's Moataz, and here are my qualifications/experiences. - 12+ Years working on VOIP solutions (Avaya in particular) in two countries (Egypt & Saudi Arabia) at big system integrators. - I have done a lot of projects at different segments/sectors with different sizes (SMB & Enterprise, and Megaprojects), starting from legacy systems to the latest technologies. - working on all application types of unified communications and customer experience applications. - Pre-sales experience, and consultancy Expertise: - IP Office, VmPro, Onex Portal, IPOCCS, ACR - Avaya Aura Core Components (SMGR, SM, CM, US, H.245 gateways) - Equinox TE & AAWG - Equinox OTT (MGMT, MEDIA, H.323, Equinox Edge, and Equinox Recording) - Aura Presence with Multimedia Messaging enabled (PMM) - AADS (standalone & clustered) - SBCE standalone and HA for remote worker and sip trunking. - Call Center Elite, AACC, EMC, - Experience Portal, WFO, and CMS - Avaya soft clients (Equinox Client, Equinox Attd, OneX Comm, OneX Agent, OneX attd). - Multiple Avaya portfolios such as (IPT, Hospitality Solutions, and Call Centers) - Different types of Avaya PBX and media gateways (SI, MCC, G450/G430, and G650). - Integration between Avaya and other systems (Astrix, LYNC & CISCO...). - Custom reports for CMS Designer. - Cisco CUCM, Unity. - Grandsteam - FreePBX, Neogeo Router Services: 1- Troubleshooting any raised issue. 2- Preventive/proactive maintenance with a weekly report. 3- New implementation/commissioning. 4- Operation over the clock (already have a team for continuous operation & monitoring) 5- Consultancy sessions regarding design requests, quotations, licenses, and sizing. 6- Training sessions
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    VoIP
    Solution Architecture
    Remote IT Management
    Session Initiation Protocol
    Network Administration
    Network Design
    3CX
    Cisco Certified Network Professional
    Avaya
    Amazon Web Services
    Cisco Certified Network Associate
    PBX
    Technical Documentation
    VoIP Administration
  • US$79 hourly

    • 4.4/5
    • (317 jobs)
    I’m a diligent Information Technology Specialist with over a decade of hands-on experience in conceptualizing, overseeing, and executing complex, revenue-generating projects. With a proven track record of success in cross-continental project management and more than 8500 hours on Upwork, I’m determined to maintain the highest standards, transparency, and full commitment in every client engagement. I’m also highly focused on optimizing digital marketing campaigns through Facebook and Google Ads, driving strong results for businesses. I’m excited to collaborate with some of the brightest minds in the industry. Experience Highlights: • Digital Marketing: Facebook Ads, Google Ads, Appsflyer, TikTok Ads, Retargeting, Event Tracking, Audience Management • Network Administration: VLAN, VPN, Wireless networks, Network equipment (HP, Cisco, Huawei, Juniper), Deep network architecture expertise • Wireless Technologies: Aruba (WLC, Clearpass), Fortinet, Aerohive, Cisco (WLC), Meraki • Routing Protocols: BGP, OSPF, EIGRP, IS-IS, RIP, Static routing • High Availability: Active-passive clusters (HSRP, VRRP, JRRP), Load-balancing • Security: Firewalls (ASA, FWSM, Fortigate, Juniper SSG, SonicWall, pfSense), PKI, IDS/IPS, Antivirus, Antispam techniques, RADIUS (Windows / FreeRadius) • Voice & Video Conferencing: Polycom, Skype, Cisco (VCS, CCM, CUCM, Unity, IMP), Nortel, Asterix (TrixBox, Elastix) • Digital Marketing: Facebook Ads, Google Ads, Appsflyer, TikTok Ads, Retargeting, Event Tracking, Audience Management • Network Management Systems: Cisco Prime, Cacti, PRTG, Zabbix, NAGIOS
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    Cisco
    AWS Systems Manager
    Security Assessment & Testing
    Database Administration
    Firewall
    Cloud Architecture
    Network Penetration Testing
    Cisco Certified Network Professional
    Network Administration
    Microsoft Office
    Network Security
    Fortinet
    VoIP
    Network Design
  • US$30 hourly

    • 4.7/5
    • (18 jobs)
    A technical professional with a background in DevOps/Site Reliabiltiy Engineering and security, with a strong focus on creating engaging content which also increases clients visibilty and overall SEO. Translating complex technical jargon into appealing articles is something that I take great pride in. I worked with multiple companies over the past 4 years from cybersecurity vendors to SaaS developers to create how to guides, product pages, FAQs and blog posts. Please see some of this feedback below: SD WAN, SASE Security and Cloud content creation – “Connor has produced some excellent content for us, we intend to continue leveraging his capabilities in the future.“ - CEO/Founder Network Consultancy Services that I offer: - SEO optimised blog posts - User guides (How to, SaaS, FAQs) - Case studies and Whitepapers. - Technical documentation, mainly for API endpoints and SaaS - Proofreading and document editing SEO is something that I am very knowledgeable about. I like to identify your audience by doing keyword research and suggesting ideas that'll benefit yourself. Before I submit an article to the client I run it through an SEO article checker (Yoast and Semrush) to ensure the highest quality and optimization.
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    Network Planning
    Cisco Certified Network Associate
    Solution Architecture
    LAN Administration
    Cisco Router
    SNMP
    Network Administration
    Cisco Meraki
    Network Security
    Juniper
    VoIP
    Network Monitoring
    Network Design
    Network Engineering
    Network Equipment
  • US$125 hourly

    • 4.9/5
    • (70 jobs)
    Hugh has created marketing content for such clients as Microsoft, IBM, SAP, HPE, Oracle, Google and Advanced Micro Devices. He is known for making complex technological concepts understandable to the business reader. He often applies financial modeling techniques to make business arguments in favor of technology purchase decisions. Some clients value his witty approach to blog writing. Prior to freelancing, Hugh served in a variety of executive marketing roles at venture-backed startups as well as global giants like IBM and Microsoft.
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    White Paper Writing
    Content Creation
    Web Content Development
    Content Strategy
    Content Writing
    Content Marketing
  • US$20 hourly

    • 5.0/5
    • (4 jobs)
    Hi!!! This is M. Nouman Afzal. I am a VoIP Engineer and have 3+ years of experience working on asterisk and asterisk-based PBX systems. I provide the following services 1. Installation of VitalPBX, FreePBX, vicidial, and 3cx in the cloud or local server. 2. Troubleshooting Issues related to the PBX system 3. Remote Technical Support 4. custom Dialplans and automation 5. Following Features' Setup • Extension Creation • Voice Mail • Announcements • Office Hours setup • Custom IVR with database queries & API calls • Ring Groups • SIP Trunk Integration • WebRTC • Queues • All other related services to the PBX system
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    Asterisk
    3CX
    VoIP Software
    VICIDIAL
    MySQL
    FreePBX
    Session Initiation Protocol
    Linux System Administration
    CentOS
    Ubuntu
    VoIP
    Linux
  • US$45 hourly

    • 4.9/5
    • (287 jobs)
    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.
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    Kamailio
    Node.js
    Vue.js
    JavaScript
    PHP
    MySQL Programming
    Asterisk
    FreePBX
    FreeSWITCH
    TypeScript
    Session Initiation Protocol
  • US$75 hourly

    • 4.9/5
    • (375 jobs)
    🥇UPWORK EXPERT-VETTED🥇 I am a highly experienced Network and Security Engineer/Architect with over 17 years in the industry and an Expert Vetted Freelancer on Upwork with more than 13,000 hours logged. I specialize in delivering high-quality solutions to complex networking and cloud infrastructure challenges. ✨𝗦𝗸𝗶𝗹𝗹𝘀 & 𝗘𝘅𝗽𝗲𝗿𝗶𝗲𝗻𝗰𝗲: 🏆Advanced Networking Solutions: ✅Vendors: Cisco, Juniper, Mikrotik, Arista, Dell, Brocade, Palo Alto, Mellanox, Sonicwall, Fiberstore, Sophos, Zyxel/Zywall, Quagga/Vyos, Fortinet/Fortigate, PFSense/OPNSense, Untangle, Unifi/Edgerouter/Edgeswitch/USG/Controller, Motorola/Cambium/PTP/PMP/Medusa, Aruba, Netonix, Cumulus, PRTG, Hyper-V, ESXI, ZTE, Huawei, DSLAM, OLT/ONT ✅Routing Protocols: RIP, EIGRP, OSPF, BGP, MPLS VPNs ✅Switching Protocols: RSTP, MST, VTP, Private VLANs, HSRP, VRRP ✅VPN Technologies: L2TP, PPTP, S2S IPSec, GRE, OPENVPN, Wireguard ✅Networking Standards: TCP/IP IPv4, IPv6 Planning and Implementation ✅Emerging Technologies: SD-WAN, ZeroTier 🏆Proficient in Linux systems: ✅Distributions: Ubuntu, Debian, CentOS, Fedora ✅Applications: Fastnetmon, GOBGP, Cacti, Librenms, Phpipam, Netbox 🏆Cloud Infrastructure Management: ✅AWS: Client/S2S VPN, VPC, EC2, SG, S3, RT ✅Azure: S2S/C2S VPN, VM, VNET, LB, SG, RT ✅Vultr: Compute, VPC, DC, Peering, RT 𝗘𝗱𝘂𝗰𝗮𝘁𝗶𝗼𝗻: 🎓Master of Sciences in Computers Engineering 🎓Industry-Recognized Certifications: 🌟Cisco: CCDA, CCDP, CCNA, CCNA-Sec, CCNP-R&S, CCNP-ENT, ENARSI, ENCORE, ENSLD, SWSA 🌟Juniper: JNCIA 𝗔𝘃𝗮𝗶𝗹𝗮𝗯𝗶𝗹𝗶𝘁𝘆: ⏰ Every day, Monday to Sunday 02:00- 16:00 EST
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    Network Design
    Cisco
    Microsoft Azure
    Amazon Web Services
    Multiprotocol BGP
    Sophos Sophos UTM
    PfSense
    Mikrotik RouterBOARD
    Security Engineering
    Network Engineering
    Ubiquiti
    VPN
    Network Equipment
    Network Security
    Firewall
  • US$75 hourly

    • 5.0/5
    • (116 jobs)
    Over the last 12 years, I have deployed and maintained several ISP networks working as a network engineer, senior network engineer, network security administrator and senior network administrator in different companies. I have done a lot of network consulting works for companies in the US, Europe, Africa and helped to successfully start three ISP companies from scratch. I'm holding an industrial CCNP R&S, Fortinet NSE4, CompTIA Linux+, Okta Certified Professional and other certificates I'm seeking opportunities to audit, build, reconfigure or maintain network or server infrastructure of any company. I have experience in the following areas: Routing and Switching, Network Security, VoIP, VPN, Firewalls. I'm familiar with different leading vendors equipment such as Cisco, SonicWALL, Fortinet, Sophos, Arista, Meraki, Mikrotik, Ubiquiti, Cambium Networks, HP, Dell, etc. I've administered SAAS applications like Okta, Google Workspace, Office 365, Zoom, Slack, Gong, Atlassian Jira, Confluence, Jira Service Management and many others.
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    OKTA
    Fortinet
    Open Networking Operating System
    Cisco ASA
    Network Engineering
    Firewall
    PfSense
    Network Planning
    MikroTik RouterOS
    Cisco Certified Network Professional
    TCP/IP
    Network Security
    Cisco Router
    Cisco IOS
    VMware ESX Server
  • US$35 hourly

    • 4.7/5
    • (32 jobs)
    I am a Business Applications Solutions consultant with over 12 years of experience in leading 50+ successful Microsoft Dynamics 365 CE, Field Service, Customer Service, and Marketing projects. My expertise includes assessment & strategy, configuration, implementation, migration, customization, and support services for sales, marketing, customer services, workflow, and analysis modules. I work closely with clients to propose viable business solutions that fit their budget and IT infrastructure, using a mix of Microsoft technologies. As a result-oriented consultant, I ensure that projects are completed on time, within budget, and to the client's satisfaction. My skills and Expertise include: • Dynamics 365 CRM, • Dynamics 365 CE, • Dynamics 365 Functional Consultant • M365, D365 Technical Consulant • Field Service, Customer Service, Marketing, M365 SharePoint (Consultation) • The Power Platform, including Power BI, Power Apps, Power Apps Portal, and Power Automate. My project types include: • Dynamics 365 CE, Field Service, Customer Service, • Marketing customization, implementation, upgrade, migration, integrations with Dynamics 365 CE, • Power Platform implementations. We can collaborate for assistance with Business Applications Transformation. Thanks Abhishek Kumar
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    Solution Architecture Consultation
    Solution Architecture
    Microsoft Dynamics 365
    Microsoft Power Automate Administration
    Microsoft Certified Professional
    Microsoft SharePoint
    Microsoft Power BI
    Microsoft Dynamics ERP
    Microsoft Dynamics CRM
    Microsoft PowerApps
  • US$110 hourly

    • 4.9/5
    • (74 jobs)
    I am a UK based TOGAF 9 Certified Solution Architect with 19+ years of experience in Technical Content Writing on IT Infrastructure, Cloud, DevOps, Cybersecurity (including DevSecOps & AppSec), Enterprise Service Management (ITSM), and ITIL. Following are some of my domains of expertise - - Cloud (Public/Private/Hybrid) - DevOps - AWS - MS Azure - Google Cloud - Kubernetes - Docker - ITIL and ITSM - ServiceNow - Cybersecurity I also hold a Masters Degree in Computer Application & Mathematics, as a result, I possess the right level of knowledge to write articles on both Legacy and Emerging Technologies. I am also a ServiceNow Certified Administrator and Implementor (ITSM London). My articles are focused towards its reader-base, and are extremely engaging and informative. Every written line has real information rather than fluff/fillers. By the end of every line/paragraph, the reader will be urged to continue reading. If you are looking for copied, spun or AI-written content to help you with a cost-optimized solution - SORRY, I AM NOT THE RIGHT GUY!
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    Cybersecurity Management
    DevOps
    Blog Writing
    SaaS
    Proofreading
    Technical Writing
    Cloud Computing
    White Paper Writing
  • US$95 hourly

    • 5.0/5
    • (33 jobs)
    A result-driven Senior Network Professional with over 15 years' experience in Routing, Switching, Security and Network Design for corporate and enterprise networks.
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    Computer Network
    Virtual LAN
    Amazon Web Services
    Cisco Meraki
    Network Equipment
    Ubiquiti
    Network Design
    Network Engineering
    Palo Alto Firewalls
    Cisco Router
    Fortinet
    Mikrotik RouterBOARD
    Firewall
    VPN
    Cisco ASA
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