IntCalling - Page 4

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 11, 2025

Desk Phone vs Softphone in UC: Choosing the Right Endpoint Mix

Learn how to choose between desk phones and softphones in unified communications. Discover which works best for remote teams, call centers, and hybrid workplaces-and how to mix them for maximum efficiency.

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.

Oct 2, 2025

ROI Case Studies for VoIP: Real Savings and Productivity Gains Businesses Are Seeing

Real VoIP case studies show businesses cutting phone bills by 50% or more and boosting productivity by 20%. See exactly how companies saved thousands and gained efficiency with VoIP-no fluff, just facts.

Sep 27, 2025

VoIP DSCP Markings: How EF and CS Classes Prioritize Voice Traffic for Clear Calls

Learn how EF (DSCP 46) and CS classes prioritize VoIP traffic to ensure clear, lag-free calls. Discover best practices, common mistakes, and why DSCP marking at the source is critical 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 22, 2025

Call Tagging Taxonomy in VoIP: How to Standardize Call Reasons and Outcomes for Better Analytics

Standardizing call tagging in VoIP systems turns raw call data into actionable insights. Learn how to build a clear taxonomy for call reasons and outcomes to improve sales, support, and team performance.

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.