SIP.US Overview

SIP.US is a focused, business-class SIP trunk service provider that connects directly to a company's existing IP-PBX system or analog/digital telephone adapters. Operating over the customer's own broadband connection, it offers unlimited calling rate plans. Since 2007, the company has specialized solely in SIP Trunking, building a reputation on a Tier-1 network, easy setup, and a powerful self-service control panel for management. The service emphasizes simplicity and instant activation, famously offering a free trial account setup in less than 60 seconds, making it straightforward for businesses to adopt VoIP without long-term commitments.
SIP.US is tailored for small to medium-sized businesses with an on-premise PBX (like Cisco, Avaya, or FreePBX) looking to transition to VoIP or replace their traditional phone lines. It's also suitable for IT administrators who prefer direct control over their telephony infrastructure via a self-service panel.
Our verdict is that SIP.US is a reliable, no-fuss SIP trunking provider with a clear niche. Its long-standing specialization, straightforward pricing, and exceptional ease of trial make it an excellent, low-risk option for businesses seeking to modernize their voice connectivity with a proven service.
SIP.US Details
SIP.US Platforms supported
Cloud, SaaS, Web-Based
Desktop Chromebook
Desktop Linux
Desktop Mac
Desktop Windows
Mobile Android
Mobile iPad
Mobile iPhone
On-Premise Linux
On-Premise Windows
SIP.US Support options
Chat
Email Help Desk
FAQ Forum
Knowledgebase
Phone Support
SIP.US Training options
Documentation
In-Person
Live Online
Videos
Webinars
SIP.US Related Categories
SIP.US Typical customers
Freelancers
Small Businesses
Small to Mid size businesses
Mid size businesses
Mid to Large size enterprises
Large enterprises
Very Large enterprises
SIP.US Pricing
Tiered pricing system
SIP.US Features
Most valued SIP.US features by users
Access Controls/Permissions
Call Recording
Call Routing
Contact Management
IVR / Voice Recognition
Online Voice Transmission
SIP Trunking
Unified Communications
Voicemail Transcription
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