How to Delete Issabel Call Recording Files

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How to Delete Issabel Call Recording Files

Issabel PBX, a popular open-source Unified Communication solution, saves call recordings in the directory /var/spool/asterisk/monitor/. Over time, these call recordings can consume significant disk space, leading to storage issues. To ensure your server continues to operate efficiently, it is necessary to manage and delete old or unnecessary call recordings periodically.

This article explains how to locate and delete Issabel call recording files safely.

1. Understanding the Default Location

By default, Issabel PBX stores all call recordings in the following directory:

/var/spool/asterisk/monitor/

Within this folder, call recordings are often saved with filenames containing the call date, time, and extension number. For example:

exten-101-107-20241211-122032-1733899832.3410.wav

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How to Create IVR Prompt Audio Files Using Online Tools

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How to Create IVR Prompt Audio Files Using Online Tools

Interactive Voice Response (IVR) systems are essential for businesses looking to automate customer interactions. A professional and clear IVR prompt ensures that customers can navigate options effectively. If you already have a WAV file for your IVR prompts, you might need to convert it into a specific format compatible with your VoIP system or if you dont have wav files you can create using website Text to WAV converter  https://www.narakeet.com/create/text-to-wav.html .

In this article, we’ll guide you through creating and converting IVR prompt audio files using two online tools: g711.org and 3CX Audio Converter.

Step 1: Understanding IVR Prompt Requirements

Before we dive into the tools, it’s important to understand that most IVR systems require audio files in a specific format. Common formats include:

  • G.711 u-law (ULAW) or G.711 a-law (ALAW) codecs
  • 8 kHz sample rate
  • Mono channel (not stereo)

Having audio in the correct format ensures compatibility with VoIP systems, such as Asterisk, FreePBX, Grandstream, or 3CX.

If your existing IVR audio files are not in this format, you’ll need to convert them.

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How to Easily Configure WireGuard Clients on Android and iOS Using QR Codes

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How to Easily Configure WireGuard Clients on Android and iOS Using QR Codes

WireGuard has become the go-to VPN protocol for its simplicity, speed, and strong encryption. One of its most convenient features is the ability to configure WireGuard clients on Android and iOS devices using a built-in QR code scanner. This eliminates the hassle of manually entering long configuration strings and public keys.

However, users of MikroTik routers face a common challenge: MikroTik does not provide built-in tools to generate QR codes. While Linux servers have tools like qrencode, copying and pasting public keys between MikroTik and mobile devices can be frustrating and error-prone. Fortunately, there is an easy way to simplify this process using WireGuardConfig.com.

In this guide, we will show you step-by-step how to generate WireGuard configurations and QR codes to seamlessly set up your Android and iOS clients.

Why Use QR Codes for WireGuard Configuration?

Manually entering WireGuard configuration parameters, such as private keys, public keys, and endpoints, can be time-consuming. QR codes provide a simple solution:

  • Faster Setup: Scan a QR code to configure the client instantly.
  • Error-Free: Avoid mistakes caused by manual input.
  • Convenient: Perfect for mobile devices with limited screen space.

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Troubleshooting: Fixing NMTUI Not Working on CentOS 7

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troubleshooting Fixing NMTUI Not Working on CentOS 7

If you’re using CentOS 7 and are having trouble getting NMTUI (NetworkManager Text User Interface) to work properly, you’re not alone. This issue can arise for various reasons, but often, it’s due to improper installation or configuration of the NetworkManager service. In this article, we’ll walk you through the steps to resolve issues where nmtui doesn’t work, using some basic commands to install and configure NetworkManager on CentOS 7.

What is NMTUI?

Before diving into the troubleshooting steps, let’s clarify what NMTUI is. NMTUI is a text-based user interface for managing network connections on Linux systems using NetworkManager. It’s useful for users who prefer not to use the command line directly but need a way to manage their network configurations in a terminal. It provides an easy-to-navigate interface for tasks like setting up IP addresses, DNS settings, Wi-Fi, Ethernet interfaces, and more.

The Problem: NMTUI Not Working

Sometimes, after installing or updating CentOS 7, you may find that running nmtui in the terminal doesn’t bring up the expected interface. This can happen for several reasons, such as NetworkManager not being installed or started properly.

Let’s go through some common steps to fix this issue.

Step 1: Install NetworkManager-tui

First, ensure that the NetworkManager TUI package is installed on your system. While NetworkManager is likely installed by default on CentOS 7, the text-based interface (nmtui) may not be. You can install it with the following command:

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How to Fix “No Bootable Device Found” Error in PNETLab for QEMU Images

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If you’re working with PNETLab (PnetLAB) and encountering the “No Bootable Device Found” error when booting a QEMU image, don’t worry—you’re not alone. This issue is often due to incorrect image or folder naming. Fortunately, it can be quickly fixed by following the proper naming conventions for QEMU images.

Why Does the “No Bootable Device Found” Error Happen?

The “No Bootable Device Found” error typically occurs in PNETLab when the image folder name or the image file name does not match the required naming structure. When PNETLab attempts to boot a virtual machine (VM), it looks for a specific folder and image file structure to locate the bootable file. If this structure is incorrect, the image won’t boot.

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How to Fix iShare2 Not Working After PNetLab VMware Image 4.2.10 Installation

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How to Fix iShare2 Not Working After PNetLab VMware Image 4.2.10 Installation

How to Fix iShare2 Not Working After PNetLab VMware Image 4.2.10 Installation

Pnetlab

If you’ve recently installed the PNetLab VMware image version 4.2.10 and are experiencing issues with iShare2 not working, you’re not alone. This is a common problem faced by many users, but fortunately, there’s a straightforward solution. This article will guide you through the necessary steps to resolve the issue and get your iShare2 running smoothly again. this is because of they have change the repository to download images.

Step 1: Verify Internet Connectivity

Before diving into patching and upgrading, the first step is to ensure that your VMware workstation has a stable internet connection. This is crucial as the patches and updates you’ll need to apply require internet access. Check the network settings in VMware to confirm that the virtual machine is connected to the internet.

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How to Recover MikroTik Router RB750Gr3 from Failed Firmware Upgrade Using Netinstall

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MikroTik routers are known for their reliability and performance, but sometimes things can go wrong, especially during firmware upgrades. If your MikroTik RB750Gr3 router has experienced a failed firmware upgrade, you can use the Netinstall tool to recover it. Netinstall is a Windows utility provided by MikroTik that allows you to reinstall the router’s firmware over the network. Here’s how you can use Netinstall to recover your MikroTik RB750Gr3 router.

Prerequisites:

  1. Netinstall Utility: Download and install the Netinstall netinstall64-6.49.11.zip utility from the MikroTik website (https://mikrotik.com/download/archive).
  2. Firmware Image: Download the correct firmware image for your MikroTik RB750Gr3 router from the MikroTik website.                                                      I used   routeros-mipsbe-6.49.11.npk  from MikroTik website (https://mikrotik.com/download/archive).Note :- Its recommended use the same version of Netinstall utility as firmware.
  3. Ethernet Cable: Ensure you have an Ethernet cable to connect your computer to the router Ethernet port Ether1 or WAN port.
  4. Power Adapter: Make sure your router is connected to a power source.
  5. PC IP Address : Configure your PC LAN IP address as 192.168.88.2 /24  and Netinstall Netboot IP address 192.168.88.3.

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How to Install ZeroTier VPN Client on CentOS 7

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Installing ZeroTier VPN Client on CentOS 7

ZeroTier is a powerful and easy-to-use VPN solution that allows you to create secure networks and connect devices across the globe. In this guide, we will walk you through the installation process of the ZeroTier VPN client on CentOS 7.

ZeroTier

Step 1: Install EPEL Repository

First, you need to install the EPEL (Extra Packages for Enterprise Linux) repository, which contains additional packages for CentOS.

yum install epel-release

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How to change SIP Port in Issabel

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How to change SIP Port in Issabel

Securing Your Issabel IP PBX: A Step-by-Step Guide to Changing SIP Ports

Issabel IP PBX systems play a pivotal role in modern business communications, facilitating seamless voice and data integration. To enhance the security of your Issabel IP PBX, one effective measure is to change the default SIP (Session Initiation Protocol) ports. In this guide, we will walk you through the process of changing the SIP port on your Issabel IP PBX for improved protection against potential security threats.

1- Login to Issabel Web interface

go to  PBX > PBX Configuration > Setting > Asterisk SIP Setting  >  Advanced General Settings  >Bind Port

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