Fastweb + Vodafone: Transforming Customer Experience with AI Agents using LangGraph and LangSmith

Fastweb + Vodafone thus needed an AI solution that could handle both customer-facing interactions and empower call center agents to deliver exceptional service consistently. Case Studies LangGraph LangSmith Fastweb + Vodafone: Transforming Customer Experience with AI Agents using LangGraph and LangSmith The LangChain Team December 16, 2025 7 min Go back to blog Create agents Create agents Share Fastweb + Vodafone, part of the Swisscom Group, is one of Europe's leading telecommunications providers serving millions of customers across Italy. Thanks to this approach, the use of generative AI has driven One-Call Resolution (OCR) rates above 86% .

Agent or tool: LangChain
Topic: Customer Support
Reported on: Blog (LangChain)
Added: 2026-11-11

Why it matters

Support is repetitive and time-sensitive. Agents can draft answers, look things up and handle simple requests, so people can focus on the tricky ones. It is one of 554 sightings filed under Customer Support on Agent Sightings (number 269 by interest), and one of 25 involving LangChain.

How you could try it

Here is a reusable prompt, written by us in our own words, that captures the task. Paste it into LangChain or any similar agent and adjust the details to your situation.

I want an agent to handle routine customer questions end to end, and pass anything unclear to a person. The tool in the source case was LangChain.

Saved

Tip: Start small: run it once on a low-stakes example, read what the agent did, and only then let it run on real work.

Source

Read the original first-hand account on Blog (LangChain): https://langchain.com/blog/customers-vodafone-italy. Our summary is a paraphrase; details are in the source.

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