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Guide, 3 min read

What is IP Call? A Complete Guide to Internet Protocol Calling

What an IP call is, how it works, what it costs in Bangladesh, and why businesses are moving their office numbers from SIMs and PABX boxes to IP calling.

By the IPCallBD team. Published , updated

What is IP Call?

An IP Call (Internet Protocol Call) is a method of making voice calls using the internet rather than traditional telephone lines. Also known as VoIP (Voice over Internet Protocol), this technology converts your voice into digital data packets and transmits them over the internet.

How Does IP Calling Work?

When you make an IP call, your voice is captured by a microphone and converted into digital signals. These signals are broken into small data packets, transmitted over the internet, and reassembled at the receiving end. The entire process happens in milliseconds, making the call experience virtually identical to traditional phone calls.

Key Components

  • SIP (Session Initiation Protocol): Manages call setup and teardown
  • PBX (Private Branch Exchange): Routes calls within an organization; see Cloud PBX
  • IP Phone or Softphone: The device or app used to make calls
  • Internet Connection: The medium for transmitting voice data

Benefits of IP Calling for Businesses

1. Significant Cost Savings

Traditional phone calls, especially long-distance ones, can be expensive. IP calls dramatically reduce costs. With IPCallBD, rates start at just 35 Paisa + 15% VAT per minute with per-second billing.

2. Advanced Features

IP calling comes with features that traditional phones simply cannot match:

  • IVR (Interactive Voice Response): Automated menu systems
  • Call Recording: Record and review conversations
  • Call Forwarding: Route calls to any device
  • Call Analytics: Detailed reports on call patterns

3. Scalability

Adding new lines or extensions is quick and easy, no need for physical wiring or hardware installation.

4. Remote Work Friendly

Staff can make and receive calls from anywhere using the same official business number, perfect for remote and hybrid work setups.

IP Calling in Bangladesh

Bangladesh has seen significant growth in IP calling adoption, especially among businesses looking to modernize their communication infrastructure. BTRC-licensed IPTSP operators provide the backbone for legitimate IP calling services.

IPCallBD works with licensed operators including Ranks ITT, Icon Infotech, Royal Green Online, and Sarkar Communication to provide reliable, legal IP calling services. Numbers issued this way start with 096; the next two digits identify the operator. Our IPTSP operators guide explains the format and how to verify any provider’s license.

What does a 096 number mean?

Mobile numbers in Bangladesh start with 017, 018, 019, and so on; IP telephony numbers start with 096. A 096 number is a real telephone number that any mobile or landline can call. The difference is that it lives on the internet rather than on a SIM, so it can ring on several phones at once, play a menu, and record calls. How to get a 096 number covers the documents and cost.

Getting Started with IP Calls

Getting started with IP calling through IPCallBD is simple:

  • Choose a Cloud PBX package (starting at ৳500/month)
  • Get your free corporate IP number
  • Set up extensions for your team on the Zoiper app or an IP phone
  • Start making calls at 35 Paisa + VAT per minute

Ready to switch to IP calling? Contact IPCallBD today for a free consultation.

Written by the IPCallBD team

We have run cloud PBX and IP calling infrastructure for businesses in Bangladesh since 2011. Questions about anything in this article? Ask us on WhatsApp.

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