10+ years of professional experience in the Cloud and ISP industry. I possess many skills in systems installation, configuration, upgrading, and maintenance. Specialties: # Virtualization and Cloud: OpenStack, Proxmox, KVM, Docker, Kubernetes, AWS. # Storage: Ceph, TrueNAS, ZFS, GlusterFS, iSCSI, NFS. # Application Server: Exim, Dovecot, Postfix, Zimbra, Bind, PowerDNS, Apache, Nginx, OpenVPN, PPTP, cPanel/WHM, rSyslog, Zabbix, Cacti, etc. # VoIP: Asterisk, FreePBX, Vicidial, FusionPBX, Voice Gateway, SS7 Media Gateway. Vendor Certification: # Red Hat Certified Engineer (RHCE) # Red Hat Certified System Administrator (RHCSA) # Red Hat Certified Specialist in Virtualization (RHCVA) Always ready to learn new Technology and Techniques. Thank you in advance for your time and consideration.

With over two decades of extensive experience in the world of programming, I've honed a knack for efficiency and innovation. I believe in optimizing time and delivering solutions that matter, constantly pushing the boundaries of what’s possible. From the age of 10, programming hasn't just been a job—it's been a calling. Whether you're looking for new project development or leveraging existing solutions, I’m your go-to expert. Experience: Twenty-two years of diverse commercial programming experience and 31+ years overall programming —from Linux administration and virtualization to end-user web development and complex billing systems for VoIP. Expert work with Asterisk since its inception and substantial experience with FreePBX, Trixbox, and a2billing. Proudly, I'm one of the contributing minds behind a2billing.org's trunk. My depth of expertise encompasses database administration and architecture, especially with MySQL and Postgres. Education: Master of Science in Computer Science (confirmed by WES) Technical Skills & Specializations: Languages: Python/Django, Javascript/jQuery, SQL, PHP, C/C++, Perl, Prolog/Lisp, and Forth. Platforms & Tools: Asterisk, Opensips, Kamailio, Callweaver (faxing). Noteworthy Contributions: Developed modules for FreePBX, Elastix, Trixbox, and a2billing. Philosophy: I stand for originality and meaningful impact. If a task doesn’t need to be done, I won’t push for it. Instead, I'll direct my energy towards novel and intriguing challenges, ensuring that you get the best of both worlds—innovation and efficiency.

Greetings to All, I am working as Senior System Administrator and VoIP Engineer for the last 7 years.I am an expert in setting up Class 4-5 Grade voip Softswitch (e,g PortaOne,voipsoft-switch) and also an expert in setting hosted PBX both multi-tenant and stand-alone. My Core skill is to Administer different types of VoIP system based on asterisk ( e.g.Freepbx,Asterisknow,Issabel,Elastix),Freeswitch(e.g.Fusion-PBX),Grandstream UCM and Linux(Centos-7, Ubuntu).I am also a certified expert in Vmware data center virtualization on Vsphere 6.7 . and Red Hat Certified Engineer. In this recent years i have completed so many systems and virtualization-related projects such as I have deployed 2000+ user mail server using zimbra and postfix then implementing data center virtualization and VoIP Platform using Elastix and freepbx on various Financial organizations such as Bank, IT,etc. I have completed my Bachelor in Electronics and Telecommunication also did my Masters in Computer Science.Hence My skills are sufficient to solve any complex and long-term work smoothly and accurately. Building state-of-the-art, easy to use, user-friendly websites and System applications is truly a passion of mine. I actively seek out new technologies, and stay up-to-date on industry trends and advancements. Thanks

I’m a skilled IT professional with 6+ years of experience in VoIP field and I have a Bachelor in Information Technology Skills 3CX IP Phones (Grandstream, Yealink, Cisco, Polycom and more) FreePBX, Elastix Twilo, Flowroute, Nexmo ViciDial RingCentral CRM Support Amazon Connect Microsoft Teams GrandStream PBX

Over the past 20+ years i have mastered the art of Asterisk Ninjitsu. When choosing me you can expect that job will be done quickly and perfect. Highly trained with any Asterisk distributions. PBX and non Asterisk PBX (Issabel PBX, asteriskNOW, TrixBox, Elastix, PIAF, freePBX, MirtaPBX, and 3CX) A2Billing Predictive dialers (GoAutodial and ViCidial) Multitenant PBX Thirdlane and VitalPBX and Hardware based PBX (SwitchVOX, Yeastar myPBX and Grandstream UCM). Class 4 and 5 Softswitches ( Sippysoft, Porta One, VOS3000, Voipswitch, Mediacore, Nextone) I have a solid experience in designing, installation, configuration, deployment and troubleshooting VoIP hardware and software applications. I am currently doing full time consultancy service for companies both local and abroad and already have at least a total of 600+ PBX server deployments. I don't like to do something that doesn't need to be done, so i usually prefer to use available developed components and solutions. But when something is needed and not available, as an experienced shinobi, I execute the techniques of asterisk programming and scripting. My rate maybe higher than others but i can assure you that I can deliver any work satisfaction guaranteed!

I can install, configure and support Asterisk, FreePBX, VICIdial based systems using VoIP or Telco (ISDN and/or POTS). I can work productively under minimum supervision and a fast learner. 15 years total experience in the field of Information Technology - Linux, Network, VoIP, Asterisk, Vicidial, FreePBX. Summary of my skills: * Asterisk , Vicidial , FreePBX, PiAF , Elastix , VoIP , Telecom (ISDN and POTS/Analog) * FusionPBX , Freeswitch , OpenSIPS * Linux System Administration (since 1998) – RHEL, CentOS, Debian, Ubuntu, OpenSuse * Unix System Administration: FreeBSD, OpenBSD and BSDi * Network Administration (Linux, Microsoft, Cisco Routers, Telebit Routers) * Touchstar-Noble Predictive Dialer, Altigen PABX , Aheeva Dialer * Microsoft Windows 2000 AS and Windows Server 2003 System Administration * Knowledgeable in Active Directory, IIS, DHCP, DNS, RDP, Terminal Services, TCP/IP and VPN * Knowledge in FIX Protocol (Financial Information Exchange Protocol 4.2 and 4.4) * I.T. Best practices in Change Management and Incident Management * Programming Languages: Active : Bash/Unix (shell) scripting, perl, AGI (asterisk) Passive : C/C++, Pascal, Delphi, Java, Visual Basic, Python, PHP * Database : MySQL, MariaDB, PostgreSQL, MS SQL 2000, MS SQL 2003 • Ability to learn quickly from self-study • Thorough experience in Linux system administration and automation • Thorough experience in configuring and deploying systems in a scalable and coherent manner • Experience in developing and marketing products using the Internet and Internet communities • Experience in project-management and leading a technical team

Bertrand Ndakena has a M.A. in Telecoms. He is a Udacity certified cloud developer and self-taught cloud administrator. Passionate about cloud developments/operations. Also interested in AI/ML and Data Science. Has extensive experience setting up cloud solutions(both open source and proprietary) and VOIP(including SIP-based) solutions.

Cisco Collaboration Unified Solution Expert. I have more than 7 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

Hello, Thanks for visiting my profile. This is Abid Ur Rehman, Certified Asterisk Developer DCAP, VoIP Consultant, VICIDial, FreePBX SCE, 3CX v18 and v20 Certified Advanced Engineer, Elastix ECE, GoAutoDial, The SIP School SSCA, PBXWare, A2Billing, FreeSWITCH, Twilio, FusionPBX, ASTPP, Network CCNA, Windows Servers MCSE, and Linux RHCE certified expert. I graduated with a BS in Telecommunication and an MSc in Telecommunication Networks. Having 10 years of VoIP/Linux/IT/Network planning, design, development, deployment, optimization, administration, and support experience in top-notch organizations such as Telappliant Ltd., Cybergen, SCB Global, Dialer360, and Primo Dialer. Skills and Certification: IP PBX: 3CX, Asterisk, FreePBX, Elastix, PBXware MT, FreeSWITCH, FusionPBX, Issabel, VoIPOffice Bitrix24 integration with FreePBX with or without the InforUnity module and with 3CX Pro/Enterprise. SMS Blast/Broadcast using SignalWire, VoIP.ms, Telnyx, Anveo, Bandwidth.com, Plivo, Skyetel, Twilio, VoxTelesys, BulkSolutions, Flowroute, Intelepeer, and BulkVS Telecom Billing: A2Billing, ASTPP, Yeti, VOS3000, and Magnus Billing. Dialer: VoiceBroadcast, VICIDial, GoAutoDial, VICIBox Multi-Server Clustering, Dialer360, Primo Dialer IP Phones: Aastra, AND phone, Algo, AudioCodes, Cisco, Cisco/Linksys, CloudTC, Cortelco, CyberData, Digium, H-Tek, Incom, Intelbras, Konftel, Mocet, Norphonic, Obihai, Panasonic, Patton, Phoenix Audio, Polycom, Snom, Thomson, Unidata, Uniden, VTech, Xorcom, Yealink, Yealink/Dreamwave IP PBX (hardware): Sangoma PBXact UC (and FreePBX phone system), Elastix IP PBX, Grandstream UCM, Yeaster S-series, Renegadepbx-1U-Appliance-with-FreePBX, Patton's SmartNode Branch eXchange (SNBX), SwitchVox, OpenVox. VoIP Providers: USA and Canada: Twilio, VoIP.ms, Switch2VOIP, SignalWire, Anveo, Alcazarnetwork, voxbeam, Telus, RingCentral, Call Centric, Voyant (Vitelity), Nextiva, bandwidth.com, Altotelecom, FlowRoute, QuestBlue, sip.us, DIDLogic, Nexmo, Plivo, siptrunk.com, Telnyx, IDTExpress, Zadarna SMS and BulkSMS: I can write code for you to send and receive SMS using any Asterisk and FreeSWITCH server and through popular providers like Telnyx, Twilio, Bandwidth.com, VoIP.ms, SignalWire. For bulk SMS, I can setup a code with the front-end for sending bulk SMS from a CSV . UK: Fuse 2, BT, VoIPTalk, DrayTEL, Telappliant, Gamma, sipgate, VoIPFone, VoiceFlex, Voicehost, Brightstar, Yellowgrid, Gradwell, T4com Ltd, Voxbeam, and Spitfire Linux Distro: CentOS, Redhat EL, Ubuntu, OpenSUSE, Debian, Back Track (Kali Linux) Windows machines: Windows Server 2012 and 2016, Windows Desktop 11, 10, 8, 7, and XP. Cloud Platforms: AWS EC2 and LightSail, GCP, Vultr, BlueHost, HostGear, Hetzner, and Digital Ocean Hypervisor: VMware ESXi, station and player, VirtualBox, ProxMox, oVirt, HyperV, I would be very happy to assist start-ups as well as SMEs in achieving their goals and business objectives. Thank you!!

I am a telephony engineer. I have good knowledge of SIP and PSTN. Experience: ● Asterisk; ● Alcatel-Lucent OXE 4400; ● System administrator linux (Centos, Ubuntu); ● FreePBX | Elastix | Kolmisoft MOR | Grandstream UCM | 3CX phone system | ● Pyhton, Bash, PHP scripting; ● GSM Gateway, ATA, SIP phone and etc. ● Zabbix ● Billing system Tariscope ● MySQL and PostgreSQL