---
title: SIP.US Reviews
meta_title: 'SIP.US Reviews 2026: Details, Pricing, & Features | G2'
meta_description: Filter reviews by the users' company size, role or industry to find
  out how SIP.US works for a business like yours.
aggregate_rating:
  rating_value: 4.5
  review_count: 2
  scale: '5'
date_modified: '2026-06-14'
parent_category:
  name: Collaboration & Productivity
  url: https://www.g2.com/categories/collaboration-productivity
---


# SIP.US Reviews
**Vendor:** SIP.US  
**Category:** [VoIP Providers](https://www.g2.com/categories/voip-providers)  
**Average Rating:** 4.5/5.0  
**Total Reviews:** 2
## About SIP.US
SIP.US is a businessclass SIP trunk service provider for IPPBX systems and analog/digital telephone adapters.




## SIP.US Reviews
  ### 1. Providing Businesses with Cost-effective and Adaptable Calling Solutions

**Rating:** 5.0/5.0 stars

**Reviewed by:** Manoharan R. | Small-Business (50 or fewer emp.)

**Reviewed Date:** August 18, 2023

**What do you like best about SIP.US?**

The thing that i like the most about SIP is its providing businesses with cost-effective and adaptable internet-based calling solutions, SIP.US is also renowned for its dependable SIP trunking services. Effective and improved verbal interchange skills are facilitated by its clear setup, transparent pricing, and feature-rich alternatives.

**What do you dislike about SIP.US?**

The aspect that I noticed, SIP.US has encompassed occasional name pleasant issues and service reliability concerns. And that I also discover the consumer interface less instinctive.

**What problems is SIP.US solving and how is that benefiting you?**

SIP.US solves conversation-demanding situations for organizations with the aid of way of imparting reliable SIP trunking services.  Due to the availability of flexible and affordable net-based calling, traditional mobile phone system costs are decreased. It is giving the advantage of increased mobility, scalability, and communication performance, which enhances customer relations and operational flexibility to my business.


## SIP.US Discussions
  - [What is SIP.US used for?](https://www.g2.com/discussions/sip-us-what-is-sip-us-used-for)
  - [What is SIP.US used for?](https://www.g2.com/discussions/what-is-sip-us-used-for)

- [View SIP.US pricing details and edition comparison](https://www.g2.com/products/sip-us/reviews?filters%5Bnps_score%5D%5B%5D=5&section=pricing&secure%5Bexpires_at%5D=2026-08-13+18%3A31%3A12+-0500&secure%5Bsession_id%5D=f957f827-aa0d-4e98-86f0-05b324fe6499&secure%5Btoken%5D=4ffb3429575dda110ef136ecdd898527ae3ae587e11a3791cb7ed70998f16917&format=llm_user)

## SIP.US Features
**Additional Functionality**
- Third-Party Integrations
- To-Do List
- @mentions
- Single Sign On
- File Management
- Activity Dashboard
- Drag & Drop
- Alerts/Notifications
- Prioritization
- Access Controls/Permissions
- Screen Sharing
- Content Management
- Brainstorming
- AI Copilot
- File Transfer
- Calendar Management
- Status Tracking
- Real-Time Notifications
- Version Control
- Task Management
- Activity Tracking
- Real Time Editing
- Communication Management
- Chat/Messaging
- Tagging
- Generative AI
- Assignment Management
- Task Scheduling
- Project Management
- Collaboration Tools
- Workflow Management
- Secure Data Storage
- File Sharing
- Document Storage
- Task Progress Tracking
- Discussions/Forums
- Commenting/Notes
- Reporting & Statistics
- Contact Management
- Video Conferencing
- Progress Tracking
- Mobile Access
- API
- Document Management
- Customizable Branding

**Platform Basics - VoIP Providers**
- PBX systems, VoIP Softphone
- Call Management
- Network monitoring
- Integrations
- Virtual PBX
- SIP trunking services
- Contact Management
- Communication Management
- Fax Management
- Call List Management
- Call Center Management
- Queue Management
- Third-Party Integrations
- Computer Telephony Integration
- Real-Time Monitoring
- Call Monitoring
- Workflow Management
- Call Center Integration

**Basic Communication**
- Phone Calls
- Video Calls
- Instant Messaging
- Screen Sharing
- Conference Calls
- Desk-to-Desk Calls
- SMS Messaging
- Chat/Messaging
- Video Call Recording
- Two-Way Audio & Video
- SIP Trunking

**Agentic AI - VoIP Providers**
- Autonomous Task Execution
- Cross-system Integration
- Adaptive Learning
- Proactive Assistance

**Access**
- Software Pairing
- Browser Extension
- Individual Download

**Advanced Features**
- Hold Music
- Automated Attendants
- VOiP Number

**Additional Functionality**
- Live Chat
- Multi-Channel Communication
- Customizable Reports
- Call Tracking
- Automatic Call Distribution
- Real-Time Data
- Purchasing & Receiving
- Employee Directory
- AI Copilot
- Activity Tracking
- Collaboration Tools
- Call Scripting
- Real-Time Reporting
- Call Recording
- Real-Time Analytics
- Virtual Call Center
- Activity Dashboard
- Reporting & Statistics
- CRM
- Auto-Dialer
- Generative AI
- Contact Database
- Call Transfer
- Call Reporting
- Call Logging
- Voice Mail
- Caller ID
- Customizable Caller ID
- Mobile Access
- Callback Scheduling
- IVR
- API
- Interaction Tracking
- Call Routing
- Alerts/Notifications
- Video Conferencing
- Call Conferencing
- Call Disposition
- Predictive Dialer
- Spam Blocker
- On-Demand Recording
- Caller Profiles
- Multiple User Accounts
- VoIP Connection
- Conferencing
- Text to Speech
- Reporting/Analytics
- VoIP
- Call Queues
- Call Screening
- Access Controls/Permissions
- Online Voice Transmission
- Unified Communications
- Voicemail Transcription

## Top SIP.US Alternatives
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  - [Dialpad Connect](https://www.g2.com/products/dialpad-connect/reviews) - 4.4/5.0 (4,037 reviews)
  - [Nextiva](https://www.g2.com/products/nextiva/reviews) - 4.5/5.0 (3,582 reviews)