IntCalling - Page 2

Oct 24, 2025

VoIP Setup Cost: Hardware, Installation, and Training for Small Businesses

Learn the true cost of setting up VoIP for small business, including hardware, installation, training, and hidden fees. Save money by avoiding common mistakes.

Oct 24, 2025

Virtual Receptionist for Remote Teams: Auto-Attendant Setup Guide 2025

Set up a virtual receptionist for your remote team with this step-by-step guide. Learn how auto-attendants improve customer service, reduce missed calls, and work across time zones with cloud-based phone systems.

Oct 15, 2025

SIP Brute-Force Attack Defense: Rate Limits, Fail2ban, and Strong Authentication

SIP brute-force attacks target VoIP systems with automated password guesses. Learn how rate limiting, Fail2ban, and strong authentication work together to stop them before they cost you thousands.

Oct 6, 2025

SIP Registration: How Devices Authenticate for Secure VoIP Calls

SIP registration is how VoIP devices prove they're authorized to receive calls. This guide explains the authentication process, common failures, and modern alternatives to MD5 that keep enterprise communications secure.

Oct 5, 2025

VoIP for Churches and Faith Organizations: Boost Donations and Outreach with Internet Phone Systems

VoIP systems help churches cut phone costs, track donations automatically, and stay connected with members and missionaries worldwide. Learn how modern church phone systems boost outreach and stewardship in 2025.

Sep 26, 2025

Slack VoIP Integration: How to Make Calls Directly from Chat

Slack VoIP integration lets you make and receive phone calls directly in Slack, reducing app switching and improving response times. Learn how it works, which providers are best, and how to set it up.

Sep 21, 2025

Least Privilege in VoIP Admin: How RBAC and Access Segmentation Stop Toll Fraud and Data Breaches

Least privilege in VoIP administration using RBAC and access segmentation prevents toll fraud, insider threats, and data breaches. Learn how role-based controls and network isolation stop 83% of common VoIP attacks.

Sep 20, 2025

Hidden VoIP Fees: What Add-Ons Actually Cost

VoIP seems cheap at $19 per user, but hidden fees for recording, CRM integration, international calls, and hardware can double your bill. Learn what add-ons really cost and how to avoid budget overruns.

Sep 13, 2025

SIP Paging Adapters and Horns: How to Set Up Overhead Paging with VoIP

Learn how SIP paging adapters connect VoIP systems to overhead horns for reliable public address announcements in schools, hospitals, and offices. Compare top models, avoid setup mistakes, and ensure emergency compliance.

Sep 8, 2025

Wi-Fi 6 VoIP Phones: Wireless IP Handsets for Modern Networks

Wi-Fi 6 VoIP phones deliver reliable, mobile business calls with longer battery life, better roaming, and stronger security. Ideal for warehouses, hospitals, and offices with dense networks.

Sep 4, 2025

Call Volume Problems: Fix Too Quiet or Too Loud Audio in Calls

Fix call volume problems that make audio too quiet or too loud. Learn why this happens on iPhones, Zoom, and Windows, and how to fix it with simple settings changes. No expensive gear needed.

Aug 20, 2025

Traveling with VoIP: Local Numbers, eSIMs, and Roaming Tips for 2025

Learn how to use VoIP, eSIMs, and local numbers to avoid expensive roaming charges while traveling in 2025. Save up to 90% on international calls with simple, proven tools.