---
title: "Piyush Sahoo (@piyuzz) | Hashnode"
description: "Founding Member, Vobiz. Writing about AI voice agents on the real phone network. Read the latest articles by Piyush Sahoo on Hashnode."
url: "https://hashnode.com/@piyuzz"
---

@piyuzz

# Piyush Sahoo

@piyuzz · Bengaluru, India · Joined October 2026

Founding Member, Vobiz. Writing about AI voice agents on the real phone network.

[Website](https://www.piyushsahoo.me/)

### [What Is CPaaS? What It Does and When You Need One](https://piyuzz.hashnode.dev/what-is-cpaas?utm_source=hashnode&utm_medium=feed)

One customer reminder end to end, who does which job, what it costs, and the rules that apply

16 min read · [piyuzz.hashnode.dev](https://piyuzz.hashnode.dev/what-is-cpaas?utm_source=hashnode&utm_medium=feed)

[4h ago](https://hashnode.com/posts/what-is-cpaas/6af58e89c786a136c851ff5e)

### [Full-duplex voice agents on phone lines: four things to check in your call path](https://piyuzz.hashnode.dev/full-duplex-voice-agents-on-phone-lines-four-things-to-check-in-your-call-path?utm_source=hashnode&utm_medium=feed)

And a simple way to time barge-in from call recordings

6 min read · [piyuzz.hashnode.dev](https://piyuzz.hashnode.dev/full-duplex-voice-agents-on-phone-lines-four-things-to-check-in-your-call-path?utm_source=hashnode&utm_medium=feed)

[10h ago](https://hashnode.com/posts/full-duplex-voice-agents-on-phone-lines-four-things-to-check-in-your-call-path/6af53bd050341a37d30f4b7f)

### [IVR Full Form and Meaning: What Is an IVR Call?](https://piyuzz.hashnode.dev/what-is-an-ivr?utm_source=hashnode&utm_medium=feed)

What an IVR call means, how phone menus work, and when you need one

16 min read · [piyuzz.hashnode.dev](https://piyuzz.hashnode.dev/what-is-an-ivr?utm_source=hashnode&utm_medium=feed)

[1d ago](https://hashnode.com/posts/what-is-an-ivr/6af43191293a90f5785708e2)

### [What Is a Virtual Phone Number? How It Works and Which Type to Get](https://piyuzz.hashnode.dev/what-is-a-virtual-phone-number?utm_source=hashnode&utm_medium=feed)

How calls reach you, what free numbers really give you, and which type to get

17 min read · [piyuzz.hashnode.dev](https://piyuzz.hashnode.dev/what-is-a-virtual-phone-number?utm_source=hashnode&utm_medium=feed)

[1d ago](https://hashnode.com/posts/what-is-a-virtual-phone-number/6af42d0baced331c9de8d7d5)

### [What Is a DID Number? Full Form, SIP Routing and Sizing](https://piyuzz.hashnode.dev/what-is-a-did-number?utm_source=hashnode&utm_medium=feed)

Direct Inward Dialing, hop by hop over SIP, plus how to size a DID block

13 min read · [piyuzz.hashnode.dev](https://piyuzz.hashnode.dev/what-is-a-did-number?utm_source=hashnode&utm_medium=feed)

[1d ago](https://hashnode.com/posts/what-is-a-did-number/6af42785aebd2641c3271e36)