--- title: "SIP.US Software Pricing, Alternatives & More 2026 | Capterra" description: "With the help of Capterra, learn about SIP.US Software - reviews, pricing plans, popular comparisons to other VoIP products and more." source_url: "https://www.capterra.com/p/186600/SIP-US/" page_type: "product" language: "en" --- # SIP.US Software Review 2026: Features, Integrations, Pros & Cons Last updated on August 26, 2026 Provider data verified by our Software Research team, and reviews moderated by our Reviews Verification team. [Description](#description)[Use cases](#use-cases)[Alternatives](#alternatives)[FAQs](#faqs)[Features](#features)[Pricing](#pricing)[Integrations](#integrations)[Support](#support)[Reviews](#reviews) SIP.US ## What is SIP.US? SIP.US is an on-demand, cloud-SIP trunking service helping companies modernize communications to support a diverse workforce. By offering businesses a more flexible, cost-effective option, companies can easily adapt legacy PBX equipment to IP-enabled PBX to leverage the Internet to connect to the PSTN vs PRI lines. Companies can purchase only what’s needed and scale quickly as needed. SIP.US provides fast set-up, an easy-to-use control panel, predictable pricing, and MS Teams integrations. ## What is SIP.US used for? [VoIP](https://www.capterra.com/voip-software/) Top alternative Featured Overall rating Based on 85 user reviews Reviews sentiment Positive 94% Neutral 4% Negative 2% Starting price $24.95 Other, Per Month Free trial available Free version not included Capterra Shortlist charts the highest-rated and most popular products... Our "Best of" badge program showcases products with the highest ratings... Our "Best of" badge program showcases products with the highest ratings... Do you work for SIP.US?[Manage this product listing](https://www.g2.com/products/sip-us/claim_requests/new?auto=true) ## Compare with a popular alternative Capterra selects software alternatives based on relevant features, verified user reviews and user interactions. Placement may be influenced by client status. ### SIP.US 4.7 (85) VS. [4.7 (209)](https://www.capterra.com/p/218251/Wildix/reviews/) Starting Price $24.95 Other, Per Month Starting Price Contact vendor Free Trial Free Version Pricing Options Free Trial Free Version Ease Of Use 4.5 (85) Ease Of Use 4.6 (698) Value For Money 4.6 (79) Value For Money 4.2 (678) Customer Service 4.6 (76) Customer Service 4.6 (648) ## SIP.US alternatives [4.4 (468)](https://www.capterra.com/p/158704/3CX/reviews/) Starting price $350.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 88% of reviewers rated it above 4 stars Highest Rated [VoIP.ms](https://www.capterra.com/p/203084/VoIP-ms/) [4.8 (698)](https://www.capterra.com/p/203084/VoIP-ms/reviews/) Starting price $1.10 Per User, Per Month Pricing Options Free Trial Free Version User Rating 97% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/203084/VoIP-ms/) [Microsoft Teams](https://www.capterra.com/p/168668/Microsoft-Teams/) [4.5 (11,159)](https://www.capterra.com/p/168668/Microsoft-Teams/reviews/) Starting price $4.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 90% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/168668/Microsoft-Teams/) [Nextiva](https://www.capterra.com/p/175788/Nextiva/) [4.6 (919)](https://www.capterra.com/p/175788/Nextiva/reviews/) Starting price $25.00 Per User, Per Month Pricing Options Free Trial Free Version User Rating 90% of reviewers rated it above 4 stars [Learn More](https://www.capterra.com/p/175788/Nextiva/) [View all alternatives](https://www.capterra.com/p/186600/SIP-US/alternatives/) ## FAQs about SIP.US Overview ### What problems does SIP.US solve? SIP.US solves slow telecom provisioning, costly legacy phone lines, and cumbersome carrier ticket workflows by giving IT teams self-service SIP trunk setup, number porting, E911 and caller ID control, and reliable backup calling. MSPs, VoIP consultants, and offices using Asterisk, FreePBX, 3CX, or custom PBXs benefit most. Answer based on 52 reviews Overview ### Which roles and teams benefit most from SIP.US? SIP.US is most used by business owners, presidents, and CEOs overseeing company communications, alongside IT directors, network engineers, and infrastructure teams managing SIP trunking, call routing, and reliability. Operations leaders also benefit by supporting scalable voice workflows, remote connectivity, and dependable telephony across offices and distributed teams. Answer based on 85 reviews Overview ### What company size and specific industries is SIP.US built for? SIP.US is designed for organizations of many sizes across a wide range of industries that want to use SIP trunking for their phone systems. Its target audience is broad, covering businesses seeking SIP Trunk support rather than a specific sector or company size. Features and Usability ### What are the key features of SIP.US? SIP.US includes core VoIP Connection, PBX connectivity, and SIP Trunking, with reviewers most often highlighting fast setup and self-service account management. Common calling features include call routing, call transfer, caller ID, and call reporting. Differentiators buyers mention include CRM integration, number porting, CNAM and E911 management, and real-time data. Answer based on 52 reviews Pricing ### How much does it cost and what fees or limitations are included? SIP.US starts at free for Inbound DID Telephone Numbers, with SIP Channels from $24.95/month and a free trial available. Fax-to-Email costs 14.95/month and SimpleFAX 24.95/month, both with a 25 setup fee and overage charges. Reviewers often call it cost-effective, though some say channel pricing can get pricey at peak volume. Answer based on 31 reviews Integrations ### Which third-party tools and platforms does SIP.US integrate with? SIP.US integrates with 3CX, Asterisk, and VICIdial for VoIP and call-center setups. The most cited connections are 3CX and Asterisk, with VICIdial included in the official catalog for additional telephony and dialing workflows. Answer based on 8 reviews Getting Started and Support ### What training and onboarding options does SIP.US offer? SIP.US provides documentation as its training option for teams getting started. Documentation gives users written reference material for reviewing setup steps, product features, and configuration details at their own pace. Answer based on 9 reviews Getting Started and Support ### What customer support options does SIP.US offer, and how do users rate the experience? SIP.US offers email/help desk, FAQ/forum, a knowledge base, phone support, and chat. Users often describe support as fast, knowledgeable, and helpful during setup, porting, and troubleshooting. Some reviews mention inconsistent response times, occasional difficulty getting after-hours help, and a few frustrating interactions or unresolved billing and outage concerns. Answer based on 58 reviews Phone support ### How good is SIP.US phone support? SIP.US provides helpful phone support for setup and urgent fixes, but response consistency appears mixed. Small business admins and IT staff often mention fast help with activation, billing setup, and troubleshooting, while others report slow follow-up, limited direct phone access, and communication gaps when resolving complex routing or international calling issues. Answer based on 23 reviews ## Features AI summary Based on 2,539 VoIP reviews Capterra data shows that buyers of VoIP software rank the following features as their top priorities: - **VoIP Connection** (**69%** of reviewers rated this feature as critical) - **Screen Sharing** (**69%**) - **Online Voice Transmission** (**58%**) SIP.US includes **VoIP Connection**, but does not offer **Screen Sharing** or **Online Voice Transmission**. Its support for **VoIP Connection** gives businesses a dependable way to place and receive internet-based calls, helping teams maintain consistent communication while managing call activity more efficiently. Call Routing 4.0 (4) 75.00% of 4 reviewers that rated this feature as important or highly important Sends voice calls to a specific queue based on predetermined criteria SIP Trunking 4.0 (4) 75.00% of 4 reviewers that rated this feature as important or highly important Enables the connectivity to send and receive calls over the internet Call Monitoring 3.7 (3) 66.67% of 3 reviewers that rated this feature as important or highly important Listen to live phone conversations for the purpose of training and assessing agent performance Caller ID 1.0 (1) 100.00% of 1 reviewers that rated this feature as important or highly important Identify the number and contact information of a caller before answering the phone Call Reporting 1.0 (1) 100.00% of 1 reviewers that rated this feature as important or highly important Track and report on all incoming and outgoing calls Call Tracking 1.0 (1) 100.00% of 1 reviewers that rated this feature as important or highly important Process to identify source of incoming calls, date, time, duration or caller type using a unique phone number SIP.US 12 features ### All Features - Call List Management: Manage and track all past and future calls. - Call Monitoring: Listen to live phone conversations for the purpose of training and assessing agent performance - Call Reporting: Track and report on all incoming and outgoing calls - Call Routing: Sends voice calls to a specific queue based on predetermined criteria - Call Tracking: Process to identify source of incoming calls, date, time, duration or caller type using a unique phone number - Call Transfer: Transfers live calls to other agents - Caller ID: Identify the number and contact information of a caller before answering the phone - Contact Database: Centralized database of stakeholders and their contact information such as names, address, phone number etc. - Real-Time Data: Receive data and information in real time - Real-Time Monitoring: Active monitoring of systems, applications, or networks - SIP Trunking: Enables the connectivity to send and receive calls over the internet - VoIP Connection: Place/receive calls through voice over IP connection --- Get Advice We can help you find the software with the features you need. Features 4.5 (85) 4.5 Based on 85 reviews ## Pricing Value for money 4.6 (79) Free Trial [View pricing plan details](https://www.capterra.com/p/186600/SIP-US/pricing/) SIP Channels $24.95 Other,Per Month It includes: - Includes Local and Long Distance Calls to the Us48 States and Canada (Excluding NWT) at No Additional Charge. Excludes Any Local - State or Federal Taxes and/or Fees Inbound DID Telephone Numbers $0.00 It includes: - All Inbound Calls Include CNAM Service Delivery Included - Enhanced Dids Include the Ability to Register a Location Address for 911 Calling (Test by Dialing 933) - You Are Able to Set PSTN Forward and PSTN Backup Redirects Per DID on the Web Portal - You Are Able to SET the 15-Character Callerid Name (CNAM) Value Per DID at No Charge on the Portal SimpleFAX™ Service $24.95 Other,Per Month It includes: - Adapter Comes Pre-Configured and Ready for Use Out of the Box - All Faxes Sent and Received Over Traditional Copper Lines (Pris) - High Reliability – No T.38 or Fax Over IP Problems! - Web Portal to View All Faxes Sent and Received Fax-to-Email $14.95 Per Month It includes: - Change Your Fax Callerid Number Directly in Our Portal - Incoming Faxes Are Sent to Your Registered Email Address as a PDF - No Faxing Over IP – All Faxes Sent and Received Over Traditional TDM Circuits (PRI Lines) - Send Document Attachments From Your Registered Email Address as Outbound Faxes - View a History of Your Sent and Received Faxes on Our Web Portal Business SMS $19.00 Other,Per Month It includes: - 10000 Message Plan Can Be Shared Across Multiple Dids. Other Plans Are Per-DID Only - Billing Is Calculated on a Per-Message Basis and Billed Once a Month on Your Rebill Day as a Separate Line Item - But Not All DID Telephone Numbers on SIP.US Can Be Enabled for SMS-to-Email Functionality - Incoming SMS Messages to the Enabled DID Will Be Sent to the Email Address(S) You Specify. You Can Also 'Send' SMS Messages via Email Using This Service. On the Management Page - Most - When Enabled - You Can Enable SMS Functionality on Your Dids That Support SMS as Well as Specifying the Email Address(S) Where the Messages Will Be Sent. You Can Also View Usage on Each SMS-Enabled DID Value for money 4.6 (79) 4.6 Based on 79 reviews ## Integrations [ 3CX](https://www.capterra.com/p/158704/3CX/)[ VICIdial](https://www.capterra.com/p/135842/VICIdial/)[ Asterisk](https://www.capterra.com/p/60249/Asterisk/) Connect with a Capterra advisor for a free 15-minute consultation Get a personalized software list aligned to your business needs with guidance from our expert advisors. Our team has helped 1 million+ businesses like yours find options that fit their needs. ## Support, customer service and training options Customer Service 4.6 (76) Support - Email/Help Desk - FAQs/Forum - Knowledge Base - Phone Support - 24/7 (Live rep) - Chat Training - In Person - Live Online - Webinars - Documentation - Videos Deployment - Web - Android - iPhone/iPad Typical users - Freelancers - Small businesses - Mid size businesses - Enterprises Customer Service 4.6 (76) 4.6 Based on 76 reviews ## User reviews Overall rating 4.7 Based on 85 reviews Filter by rating 5(67) 4(13) 3(3) 2(1) 1(1) Mentioned topic Sorted by most recent RM RODNEY M. CEO Accounting ### "UNSATIFIED CUSTOMER " 1.0 Overall Rating 1.0 1.0 Ease of Use 1.0 1.0 Features 1.0 1.0 Customer Service 2.0 2.0 Likelihood to Recommend 0/10 June 27, 2025 so far terrible service, with little to no feedback. This is definitely not what I was hoping for in a company. Pros They merge successfully with Zoiper other than that so far i have complete wasted my time waiting for the services i paid for. Cons I Paid for the services and i even wrote a ticket because their services still have me in demo mode after payment was received. I tried calling the customer service number, guy male who answered stated he can't assist me with the setup of my account so far, I'm definitely dissatisfied Review source Non-incentivized review: any software user can leave a review for any product listed on our site. All submitted reviews are subject to our verification process prior to publication. RP Ronald P. President Hospital & Health Care ### "Nice Product" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 June 1, 2022 Pros Easy to use. Low maintenance and saves company money. Cons Sometimes we have downtime with outages. However more reliable overall. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. SH Sharon H. Accountant Accounting ### "My experience with SIP.us" 4.0 Overall Rating 4.0 4.0 Ease of Use 4.0 4.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 4/10 May 31, 2022 I had to leave as I cannot afford another glitch, to upset my customers Pros I liked it when it worked , it was great Cons When it when down for Four days straight. I was very upset as was my Customers. Reasons for choosing SIP.US Price and expecting excellant service Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. AD Aaron D. IT Director Hospital & Health Care ### "Great SIP Trunk Provider" 5.0 Overall Rating 5.0 5.0 Ease of Use 3.0 3.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 May 27, 2022 It's been a great experience overall with nothing really to care about. The service has been rock solid. Even during the DDOS attack that occurred earlier in 2022. Pros The ease of setup was fantastic and the documentation that they make for different PBX system makes setup a breeze. Cons The customer portal feels a little disorganized to me. I've had to poke around the menus for a couple of minutes trying to find something. Once I submitted a support request to find an option in the website. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. AM April M. IT Admin Telecommunications ### "Resort Phones" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 7/10 May 27, 2022 I am overall happy Pros Easy to set up and the portal is easy to navigate Cons The support with hosted pbx. Sometimes when I need help I have to go back and forth with support between SIP and our phone system provider. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. CC Charles C. Owner Marketing and Advertising ### "SIP.US is a really good value for money" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 May 25, 2022 My experience with SIP.US has been very good. We had one minor issue but their customer service was quick to resolve it beyond our expectations. Pros The thing that I like most about the software is that it was very easy to deploy. Cons So far I don't have any complaints. We have been using it for six months with no real issues. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. TS Troy S. Operations Director Oil & Energy ### "SIP.US - Great service" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 5.0 5.0 Customer Service 5.0 5.0 Likelihood to Recommend 10/10 May 25, 2022 Pros Easy to Use and setup. Good support when needed. Cons I have not experienced any cons at this point in time. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. SC scott C. Network admin Mental Health Care ### "Small Business sip Trunk" 4.0 Overall Rating 4.0 4.0 Ease of Use 4.0 4.0 Features 4.0 4.0 Customer Service 4.0 4.0 Likelihood to Recommend 7/10 May 24, 2022 It was nice to get a trial and test number to make sure everything was working before purchasing the trunk with 3 channels Pros It was easy to order and implement had my phone system set up and making outgoing calls in about 1 hour. Cons It integrated well with my Mitel had a few issues with registration but not bad Reasons for choosing SIP.US It was easier to install and was simple. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. MK Michael K. President Information Technology and Services ### "Onboarding & Setup" 3.0 Overall Rating 3.0 3.0 Ease of Use 1.0 1.0 Features 3.0 3.0 Customer Service 1.0 1.0 Likelihood to Recommend 0/10 May 24, 2022 Just not good and then a loss of service for over a week. Pros In the US, Free Trial, & Ease of Setup with Free Trial. Cons After onboarding more details were given about setup which were not provided during review or implementation of the free trial. After reviewing their FAQs and knowledge base, I reached out to support pertaining to the issues and they were very condescending instead of being empathic to issue and trying to provide assistance. Reasons for choosing SIP.US US based, Free Trial which worked after basic setup. Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. PI Pablo I. System Analyst Computer Software ### "Easy and Expensive" 5.0 Overall Rating 5.0 5.0 Ease of Use 5.0 5.0 Features 3.0 3.0 Customer Service 0.0 0.0 Likelihood to Recommend 8/10 May 19, 2022 So far so good Pros Easy to use, well explained, website is clear, simple and organized. Cons Expensive, I don't have the ability to create sub-account for each of my clients under my name. Alternatives considered [Twilio](https://www.capterra.com/p/180158/Twilio-Communications-Platform/) Reasons for choosing SIP.US Twilio has so many services and I was confused at the beginning, Sip.us was simple and clear to understand for a beginner Review source Incentivized review: software users are invited to submit an honest review and offered a nominal incentive for their time and effort. All incentivized reviews are subject to our verification process prior to publication. [View all Reviews](https://www.capterra.com/p/186600/SIP-US/reviews/) ## Top-rated software of 2026 ### Fill out the form and we'll send a list of the top-rated software based on real user reviews directly to your inbox.