Viirtue Blog

3CX Extension cap title page with an image of scissors cutting a purple telephone line.
3CX has clarified a fair‑use policy that sets a maximum number of extensions per SIM Call license size. 3CX states enforcement will not begin before April 1, 2026, but the published caps redefine planning for low‑concurrency, high‑extension environments like education, hospitality, and healthcare. Many partners will need to uplift license tiers to stay within the new caps. Viirtue gives MSPs a flexible, reseller‑first path to design around real concurrency and automate quote‑to‑cash, usage rating, taxes, and compliance.
The wholesale VoIP providers market is evolving fast as MSPs and ISVs look for higher margins, automation, and AI-ready products they can sell today. In 2026, the best wholesale VoIP providers go beyond minutes and trunks—they offer quote-to-cash tools, built-in telecom tax handling, and features like voice AI and sentiment analysis that create real differentiation. This guide ranks the top four wholesale VoIP providers for 2026, with Viirtue leading the list for MSPs who want turnkey white-label wholesale voice and AI-powered innovation under their own brand.
Learn how MSPs can resell Microsoft Teams voice with high margins. See how Viirtue’s white label program and Teams add on deliver a built‑in softphone in Teams without extra Microsoft Teams Phone or Calling Plan licenses, plus brandable Canva collateral through ViiBE.
What is a master agent stylized title card in Viirtue brand colors.
A master agent is a channel intermediary that connects agents and sub-agents to multiple telecom and internet carriers under one umbrella. Originating in the 1990s, the model evolved through the 2000s into cloud and VoIP distribution. Today, many MSPs are moving beyond traditional master agents to modern platforms like Viirtue, which offer self-service quoting, instant deployment, usage rating, and automated taxes in a single quote-to-cash workflow.
Configure audiocodes blog title card with Viirtue branding.
Configuring an AudioCodes Mediant for a Viirtue SIP trunk with PRI handoff bridges modern VoIP connectivity with legacy PBX systems. This step-by-step guide walks you through setup essentials — from proxy sets and IP profiles to PRI configuration, E.164 normalization, TLS, and routing rules. Whether you’re an MSP deploying for a new customer or a telecom engineer standardizing edge devices, these steps ensure secure, reliable SIP-to-PRI integration that aligns with Viirtue’s best practices and current AudioCodes firmware.
Title tag with Viirtue brand style for Choosing the right SIP-to-PRI device
Choosing the right SIP-to-PRI device can make or break a deployment. For service providers and MSPs bridging modern SIP trunks to legacy PBXs, the hardware sitting at the edge determines not just call quality, but interoperability, survivability, and support costs. This guide breaks down what “good” looks like in the field, compares the leading models, and helps you pick the right fit for your customer base and infrastructure.

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