Trilingual IVR: A Fiber ISP Support Line That Mostly Answers Itself: The Pixel Mark case study
ISP

Trilingual IVR: A Fiber ISP Support Line That Mostly Answers Itself

How we built a voice-first, trilingual IVR (English, Telugu, Hindi) self-service line for a multi-zone fiber ISP, so routine support and billing resolve without an agent, wired to the CRM and WhatsApp.

3Languages, each natively voiced (EN · TE · HI)
24/7Self-service, no queue
Under 1sTypical voice reply
5Franchise zones, one caller-ID lookup
9Request types handled without an agent

The challenge

A regional fiber ISP, spread across several franchise billing zones, was fielding the same handful of calls all day long, in three languages, with no self-service layer in front of an already-capable CRM.

Four things made it hard.

  • The same requests, on repeat. “No internet,” “slow speed,” “what’s my due amount,” “send me the payment link.” A large share of calls needed no human judgement, only a lookup and a message.
  • One line, three languages. Customers expected to be served in English, Telugu or Hindi, and a single synthetic voice can’t pronounce all three scripts naturally.
  • Identity hidden across zones. The CRM was partitioned per franchise zone, so a caller’s records sat behind whichever zone they belonged to. No single lookup knew them all.
  • After-hours calls slipped away. Calls outside business hours went unanswered, and every callback was tracked by hand.

Our approach

We put a voice-first self-service layer in front of the ISP’s existing systems, rather than replacing anything.

The idea was simple to say and careful to build. A caller dials the normal support number, gets greeted in their own language, is recognised automatically, and handles the routine jobs themselves. Behind the scenes, tickets, payment links and confirmations fire off to the CRM and to WhatsApp on their own. A human only steps in when something genuinely needs one.

We ran the WhatsApp side on our own platform, Wamark, and connected it to the ISP’s CRM, so what the caller hears on the line and what lands in their chat are the same live records.

What the line does

From the first ring, the caller is in control.

  • A native trilingual menu. The greeting and menu are spoken in English, Telugu and Hindi, each line voiced by its own natural model, so numbers, dates and amounts are read the way people actually say them.
  • Recognised and greeted by name. The caller is matched across every franchise zone automatically, so a known customer is greeted by name and skips straight to what they need.
  • Self-service tickets. No-internet, slow-speed, frequent-disconnection and connection-shifting requests raise the right priority ticket in the CRM, with an instant WhatsApp acknowledgement.
  • Billing on demand. The real renewal link, plus the customer’s plan, validity and balance, is announced on the call and delivered to WhatsApp.
  • New-connection enquiries. Prospects get the current plans on WhatsApp, or file an enquiry that lands in the CRM as a lead.
  • Nothing lost after hours. Out-of-hours calls are captured automatically into a tracked next-day callback queue.
  • Scheduled reminders and a full admin console. The operator runs renewals, call logs and reminder calls from one password-protected back office, without touching code. And a customer who keeps calling triggers an alert straight to the admin team.

We’ve kept the deeper engineering (how the voice stays fast, how identity is resolved across zones, how state is stored) out of this write-up. The short version: it’s built to answer in under a second and to keep working after the caller already has their answer.

The impact

The line now resolves its most common requests without an agent, around the clock, in the caller’s own language.

  • Routine calls handle themselves. Faults, balances and payment links are dealt with by voice alone, in English, Telugu or Hindi, with no queue.
  • Every fault becomes a tracked ticket. Raised in the CRM with an instant WhatsApp acknowledgement, so nothing gets lost between a call and a fix.
  • Billing reaches the customer instantly. Real renewal links and plan details arrive on WhatsApp on demand, which is where customers act on them.
  • After-hours enquiries survive the night. Captured and queued for a tracked callback, instead of vanishing.
  • Problems reach a human faster. A repeat caller pages the admin team automatically, so a brewing issue gets attention before it escalates.
  • Full visibility. Every call is a readable trail, grouped by number, showing each choice and the action it triggered.

The operator is measuring the harder numbers now, call volume, deflection rate and average handle time. We’ll add those verified figures here once they’re confirmed, rather than estimate them.

Where this fits

Repetitive, multilingual support is the same story at almost every regional ISP and multi-branch service business in India. Voice and WhatsApp self-service takes the routine load off the team and gives customers a faster way to help themselves.

It’s the same thinking behind the WhatsApp self-service portal we built for Digital Fiber, applied to the phone line instead of the chat.

If your support team spends its day on the same few requests, a self-service layer is usually the fastest way out. That’s exactly the kind of build we do. Let’s talk.

Project details

  • Client: Regional Fiber ISP
  • Industry: ISP
  • Services: IVR & Voice Automation, Multilingual AI Voice, WhatsApp Automation, CRM Integration

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