📞 Professional Grandstream PBX Programming I offer integrated services in professional programming and configuration of Grandstream PBXs with high professionalism and practical experience in the field of telecommunications systems (VoIP). 🔧 Services include: Initial setup of the PBX (UCM Series) Configuring SIP Trunks and connecting them with service providers Creating and managing Extensions (employees) Professional IVR (Automated Attendant) setup Configuring Call Routing Call recording and usage reports Connecting branches via VPN Setting up IP Phones and connecting them to the PBX Resolving audio issues (One Way Audio / No Audio) Securing the system against intrusions Experience in: Asterisk / SIP / VoIP Grandstream, Yeastar, Avaya devices VPN routers like DrayTek Switches and Access Points 💼 Suitable for: Companies – Offices – Call Centers – Small and Medium Projects 📍 Remote service (Remote) or as agreed 💰 Competitive prices based on project size 📞 For contact via WhatsApp or direct call 00201110026153