Technical Support Phone Portal

I need a straightforward phone portal dedicated to technical support. When customers call, the system should guide them through a clear voice menu, offer self-service troubleshooting where possible, and route them to a live agent when needed.

Core needs
• Intuitive IVR flow focused on technical issues for my products.
• Cloud deployment on a platform such as Twilio, Plivo, or a comparable service so I can manage it remotely.
• Administrative dashboard that lets me update prompts, add or remove menu options, and view basic call reports.

Nice-to-have ideas (open to your recommendations) include tying the portal into an existing help-desk ticketing tool, sending callers a knowledge-base article by SMS, and adding simple analytics to spot recurring problems.

Please outline how you would build, test, and hand over the working portal along with any ongoing support you can provide.