通讯工程 Jobs

I am ready to launch a new voice service and need a fully verified USA-based SIP trunk that lets me place and receive both domestic and international calls. Monthly traffic will sit in the 1,000 – 10,000-minute range and the trunk must support several concurrent calls without choking, so adequate channel capacity is essential. Here is what I need from you: • Introduce or provision a reputable provider that can activate an account in my company’s name with all necessary KYC completed. • Ensure the trunk is enabled for two-way voice, CLI presentation, 911 compliance, and international reach. • Supply full connection details (SIP URI, username/password or IP auth, codec list) plus concise step-by-step setup instructions for popular soft-switches or an Aster...

Configure HG8120C XPON ONU to use LAN 1 as WAN port instead of GPON, to access Internet & VoIP Server on LAN port 2 in Routing mode bet Port1 & Port 2.

We are an electronics manufacturer looking for a local freelancer currently residing in Australia to perform a quick network compatibility and hardware quality check on our physical senior-friendly mobile phones. We need to verify if our physical devices can successfully connect to local Australian mobile networks and make/receive standard calls. What We Will Provide: We will courier the physical testing phone directly to your Australian address. We will fully cover and pre-pay all courier shipping costs (including providing a pre-paid return shipping label). You will not have to pay anything out of pocket for shipping. Your Tasks (Once you receive the phone): Insert your active Australian SIM card into the phone. (We are looking for testers using various networks, including Telstra,...

Pls contact only if you have the experience and can provide some samples from your previous DAS project. Responsibilities Design and simulate Indoor Distributed Antenna Systems (DAS) using iBwave Design. Perform RF planning and coverage analysis for LTE, 5G, and, if required, GSM/UMTS networks. Develop complete iBwave project files (.ibw) for commercial and public buildings (airports, office buildings, shopping malls, hospitals, hotels, etc.). Select and optimize DAS components, including RRUs, antennas, splitters, couplers, combiners, feeders, and passive RF equipment. Generate RF coverage prediction maps (RSRP, SINR, RSSI) and ensure coverage meets customer requirements. Prepare Bill of Materials (BOM), RF link budget calculations, and technical documentation. Optimize existing DAS des...

Buscamos Ingeniero de Telecomunicaciones / Administrador de Sistemas Senior con experiencia avanzada en VICIdial y Asterisk PBX (Habla Hispana). Responsabilidades y tareas clave: Optimización de infraestructura: Configuración, mantenimiento y tuning de servidores VICIdial (arquitectura Single o Cluster). Bases de datos: Optimización fina de base de datos (MySQL / MariaDB) para soportar alto volumen de llamadas simultáneas y evitar bloqueos de tablas. Desarrollo e IVR: Configuración de campañas predictivas, gestión de IVR avanzado, enrutamiento inteligente y scripts AGI personalizados. Soporte y conectividad: Resolución de problemas de latencia, calidad de audio y configuración de troncales SIP / carriers. Requisitos indis...

I'm looking for a skilled designer to create a product showcase catalog for our telecommunication network devices, optical fiber cables, patch cords, and distribution panels. Key requirements include: - High-quality, professional layout - Alignment with my design preferences - Clear, engaging visuals and descriptions Ideal skills and experience: - Proven catalog design expertise - Strong understanding of telecommunication products - Ability to follow brand/design guidelines

I already have a Grandstream UCM-series IP PBX on site and reachable for remote work. The hardware is up, the , but the system is still running on factory defaults. I need a Grandstream-savvy engineer to jump in and complete the core setup: • Create and test all user extensions (SIP and any analog FXS ports that may be required). • Build a clean inbound route so external calls land where they should. • Design and activate a simple operator/IVR menu that greets callers, routes them to the right extension or ring group, and falls back to voicemail if unanswered. Please handle dial plans, basic voice prompts, time conditions, and any minor tweaks that are typically part of making the above work smoothly. I’ll supply extension lists, Remote access is available via Te...

I need a full CAT6 network rolled out—more than 50 drops in total. The scope covers pulling and dressing the cable, installing and terminating I/O wall boxes, fitting patch panels, mounting the switches, and finishing with clear, consistent labeling and tagging. The work will span several environments: standard office areas, a data-center room, and a few residential-style spaces, so the approach has to remain tidy, code-compliant, and adaptable. All terminations must be tested with a Fluke (or equivalent) and documented. I will provide floor plans and port-numbering schemes on site; the finished labels must match these exactly. Deliverables • Every CAT6 run properly routed, terminated, and certified • Patch panels dressed and connected to the mounted switches &bul...