Hire the Best VOIP Administrators
in Pakistan

Hello, Thanks for visiting my profile. This is Abid Ur Rehman, a 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 over 13 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 AI Agents/Integration: ElevenLabs, Vapi SMS Blast/Broadcast using SignalWire, VoIP.ms, Telnyx, Anveo, Bandwidth.com, Plivo, Skyetel, Twilio, VoxTelesys, BulkSolutions, Flowroute, Intelepeer, and BulkVS Telecom Billing: A2Billing, ASTPP, 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 / FreePBX, Elastix IP PBX, Grandstream UCM, Yeaster S-series, Renegadepbx-1U-Appliance-with-FreePBX, Patton's gateways 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 Bulk SMS: 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, and SignalWire. For bulk SMS, I can set up 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 Distros: 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 Coding: PHP, MySQL, Lua, XML, JSON, HTML I would be very happy to assist start-ups as well as SMEs in achieving their goals and business objectives. Thank you!!

I am Microsft Certified System Engineer and have working experience in Networking / Systems and Cloud IP Phone Systems. *PBXware from Bicom System *Vital PBX *3CX Phone System *Ring Central *Phone System Installations and Configurations (3CX, Avaya IP Manager, Vital PBX, Genesys Cloud, Alcatel, Cisco, Asterisk Server, etc.) * Remote Support For MS Windows, MS Server, Phone systems configurations * Windows Server 2008,2012,2016,2019 Full Support * All Kind Of Software Installation * Bicom PBXware, Multi Tenant, Call Center & Business Editions along with Serverware * Server Backups * Basic Troubleshooting for all OEMs mentioned above * Best Customer Services Guranteed

I have more than 13years of experience with different VoIP tools Especially Asterisk, Vicidial, Freeswitch, Kamailio and OpenSips. I got hands on experience of Asterisk, Call center development, Click2Call, Callback, A2billing, Vicidial, AGI custom script writing, IVR development using PHP, Mysql. I have great experience with: - Call Center development - Call Center Hosted solution (Ready to use) - Call Center CC USA, UK and other countries Carriers - Multi-tenant PBX development - WebRTC (Web Phone) -Vicidial(predictive auto dialer) CRM integrations, custom reporting, wallboard, dashboard etc. - Distinctive Dial Plans and IVR Development - VoIP billing solution development - Asterisk Integration with Web Applications and CRMs. - AGI and AMI script writing - FreePBX for small office/home offices

CAREER OBJECTIVES: To perform and grow in a challenging environment with many opportunities to learn and grow both in experience and as a person

Your phone system is costing you customers. Missed calls, robotic IVRs, and clunky hold queues lose leads every single day. I fix that. I build AI voice agents that handle real conversations — interruptions, context switches, complex routing — at sub-500ms latency. Not demos. Production systems. ━━━━━━━━━━━━━━━━━━ 🔧 WHAT MAKES ME DIFFERENT ━━━━━━━━━━━━━━━━━━ Most "AI voice" freelancers plug together Vapi + ElevenLabs and call it done. I go deeper: ✅ Custom LLM pipelines — not just API wrappers ✅ Asterisk/FreePBX + LiveKit WebRTC — legacy and modern telephony, both ✅ SIP trunk design, SBC architecture, RTPengine — the infrastructure layer most devs skip ✅ Kernel-optimized Linux for real VoIP workloads ✅ Your data stays yours — zero vendor lock-in ━━━━━━━━━━━━━━━━━━ ⚙️ CORE STACK ━━━━━━━━━━━━━━━━━━ Voice AI → OpenAI · Deepgram · Whisper · LiveKit Telephony → Asterisk · FreePBX · Kamailio · RTPengine · SIP/RTP MLOps → Docker · Kubernetes · AWS · GCP Systems → Arch Linux · eBPF · Bare-metal tuning ━━━━━━━━━━━━━━━━━━ 📌 REAL DEPLOYMENTS ━━━━━━━━━━━━━━━━━━ ✅ High-availability telephony infrastructure — Eracon Technologies ✅ Privacy-first communication platform — Asctech Digital Inc. ✅ Enterprise AI voice automation — Hungarian Construction Inc. ✅ Large-scale Linux server & network ops — COLAB ━━━━━━━━━━━━━━━━━━ 🛡️ COMPLIANCE & CALL FILTERING ━━━━━━━━━━━━━━━━━━ ✅ DNC (Do Not Call) list filtering & TCPA compliance automation ✅ AI-powered spam/robocall detection and blocking ✅ Call authentication — STIR/SHAKEN framework implementation ✅ Outbound campaign filtering for FCC/FTC compliance ✅ Real-time number scrubbing against federal & state DNC registries ✅ Fraud detection pipelines for high-volume call centers ━━━━━━━━━━━━━━━━━━ ✅ YOU NEED ME IF... ━━━━━━━━━━━━━━━━━━ → Your current IVR is losing you customers → You need AI calling that works on YOUR infra → Your telephony stack is failing under load → You want voice + CRM + SMS in one pipeline → You run outbound campaigns and need DNC/TCPA compliance → You're getting spam flags on your outbound numbers → You need it built right, once, with docs 📩 Message me. Tell me your current setup and I'll tell you exactly what's possible.

I'm a network and System Engineer with 12 years of experience in various environments, including both home and corporate networks. I can help you with the following areas Protocols and IP Services: VLANs, Etherchannel, LACP, Spanning Tree STP and RSTP, ACLs, VPNs, RADIUS, PPPoE, DNS, DHCP, Proxies, SNMP, Host and Network-based Firewalls. Servers and IT Infrastructure - VMware ESXi, hyper V, citrix XEN - Active Directory, Windows Servers, print, file. -Red Hat, CentOS, Debian, and Ubuntu configuration and deployment - VOIP Servers Free PBX(Asterisk, Elastix, FreePBX, 3CX)configuration and deployment -Office 365 configuration and administration - Microsoft Azure cloud services -AWS Solution Architect