SIP.US vs VoIP.ms

Telnyx Suite

Zoom Phone

Telnyx is an all-in-one communications platform which delivers voice, messaging & IP services for applications & communications companies. Telnyx enables users to integrate, manage & analyze all of their voice & messaging needs with features like elastic SIP trunking, programmable SMS, & more

VoIP.ms

VoIP.ms is a cloud-based IP telephony system, which helps businesses streamline communication and manage incoming or outgoing calls using voicemail, caller ID, DID forwarding, encryption, call hunting and various other functionalities.

Zoom Phone is a cloud VoIP phone software designed for businesses of all sizes. With a streamlined administration interface and secure voice calls, Zoom Phone offers a flexible solution for remote workforces. It also features global coverage, virtual phone numbers, fixed VoIP, cloud PBX, multi-line phone systems, and a Zoom Phone API, among other functionalities.

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

Network Administrator

There was a complete guide on how to setup our Grandstream UCM PBX with SIP.US and SIP.US also provided a phone number with the service.

IT Admin

Sometimes when I need help I have to go back and forth with support between SIP and our phone system provider.

SIP.US is a cloud-based VoIP solution, which helps businesses manage processes for providing SIP trunk services to analog/digital telephone adapters & IP-PBX systems. It operates on clients’ broadband internet connection and uses tier-1 network to set up business phones for routing dialer traffic.

Caller ID

Call List Management

Call Monitoring

Call Reporting

Call Routing

Call Tracking

Call Transfer

Contact Database

Real-Time Monitoring

SIP Trunking

SIP.US

Web-based

Twilio

SIP Channels

Inbound DID Telephone Numbers

SimpleFAX™ Service

Fax-to-Email

Business SMS

They have redundancy options and the quality of the phone calls are just fantastic.

Managing director

We only use one trunk for our business and once it is setup, no need to change anything.

Administrator

The lack of features and documentation were low points.

IT Director

The customer portal feels a little disorganized to me.

Director Infrastructure

we are using from multiple years and happy with call quality.

after weeks one line appear that we are working on it

If you're not technical, and I am not, then it's a steep learning curve.

The support portal is easy to use and very responsive.

Easy to set up and the portal is easy to navigate

Operations Director

Customer Support

Call Quality

Training and Learning Curve

Customer Portal

SIP Trunks

Bugs and Issues

Billing

Ease of Use

Large Enterprises

Small Business

Mid-size Business

Freelancers

BCM One

Nextiva

AI-enabled solution that helps connect businesses to all of their conversations on one, AI-powered platform, helping them understand their customers in real-time to create personalized experiences that set them apart.

Microsoft Teams

Microsoft Teams is a chat-based workspace in Microsoft 365 which lets users collaborate on documents, make voice & video conference calls, view chat logs, and more. Teams has replaced Skype for Business as Microsoft's online meeting solution.

Wildix

Wildix: Unified communications platform combining voice, video, messaging and AI for businesses. 1 million+ users. 200+ integrations.

Indépendant tinker

The few times I had to reach out to support they were quick and responsive in answering my questions or resolving my issues.

Trainer

Amazing dedicated support team that really work with you for any tech support needs from pre implementation to post.

Access Controls/Permissions

Activity Dashboard

Activity Tracking

Alerts/Notifications

Auto-Dialer

Automated Attendant

Automatic Call Distribution

Call Center Management

Call Conferencing

Call Logging

Call Queues

Call Recording

Communication Management

Computer Telephony Integration

Conferencing

Employee Directory

For Cloud Phone Systems

Live Chat

Online Voice Transmission

Phone Key Input

Predictive Dialer

Reporting/Analytics

Ring Groups

Video Conferencing

Virtual Extensions

Voice Customization

Voice Mail

Voicemail Transcription

VoIP

VoIP Connection

By industry, VoIP.ms reviewers are most commonly professionals in information technology and services (19%). The most frequent use case cited is VoIP (70% of reviewers).

Users and use cases

Most reviewers indicate VoIP.ms delivers excellent value for money, with low costs and flexible pricing. They appreciate transparent rates and included features, though some users report extra charges for add-ons and higher international DID costs.

Value for money

VoIP.ms is a VoIP program with key features that include VoIP connection, online voice transmission, call routing, caller ID, voice mail, and more.

RingEX

Vonage Business Communications

Ooma Office

8x8 Work

net2phone

RingCX

Google Meet

Zadarma

Zoom Workplace

Google Voice

Pay Per Minute

Unlimited Plans

Complex and dated navigation

Founder

There isn't really anything that I dislike about Voip.ms other than the menus can be a bit confusing to navigate because there are so many options and settings but you eventually get used to them.

Leader, IT Operations

For the novice user it's a bit harder to use and navigate for setting up your first SIP as the menu is buried a sub menu deep.

70% of reviewers feel negative about VoIP.ms’s navigation. Users report the web interface is cluttered and unintuitive, making it difficult to locate settings or features. They say the menu structure is confusing, especially for new or infrequent users, and the dashboard feels outdated compared to modern standards. Some reviewers mention that the abundance of options can be overwhelming, and they often have to search through multiple pages to find what they need. They feel the portal would benefit from a redesign.

Limited and unreliable SMS functionality

Owner

SMS and MMS rates are high and are charged for receipt, spam texts received are not filtered by VOIP.MS

Public servant

The only down side is that sms doesn t go thru with my bank so difficult to manage a second vérification code.

53% of reviewers feel negative about VoIP.ms’s SMS capabilities. Users say SMS delivery is inconsistent, especially for receiving verification codes or messages from banks and short codes. They report issues with delayed or missing messages, unreliable MMS support, and a lack of integration options. Some reviewers find the SMS interface outdated and difficult to use, and mention that spam filtering is insufficient. They feel the SMS feature does not meet the needs of users who rely on text messaging for business or authentication.

Occasional service interruptions

VOIP.MS had a DDOS attack early in 2023 that was a PITA, no fault of theirs but it still was really the only bad experience I have had in my 10+ years of being a customer.

Admin

This unforeseen downtime had significant repercussions, impacting our operations and causing considerable inconvenience.

63% of reviewers feel negative about VoIP.ms’s service outage history. Users report experiencing downtime during DDoS attacks or server issues, sometimes lasting several days. They say these outages disrupted business operations and caused significant inconvenience. Some reviewers mention a lack of timely communication during incidents, which added to their frustration. They highlight that while outages are infrequent, the impact can be substantial when they occur, especially for businesses relying on uninterrupted service.

Call quality and management issues

President/Owner

Not a big deal for inbound, voice mail still works. But no outgoing calls means that it is also impossible to dial 911 in case of an emergency.

36% of reviewers feel negative about VoIP.ms’s call experience. Users report occasional dropped or missed calls, call quality problems, and delays in connecting. They say programming call paths and blocking spam calls is cumbersome, requiring multiple steps. Some reviewers mention difficulties with caller ID, international calling, and emergency call handling. They find the process for managing calls and troubleshooting issues can be time-consuming and not always intuitive, impacting their overall satisfaction.

Exceptional cost savings

Plant Manager

It offered a cost-effective and high-value solution

97% of reviewers feel positive about VoIP.ms’s value. Users say the service offers significant cost savings compared to other providers, making it appealing for both businesses and individuals. They appreciate the low pricing structure and the high quality-to-price ratio. Some reviewers mention saving thousands annually, and they find the platform’s flexibility allows them to maximize value. They highlight that the service delivers more features for less money, and say the overall offering is excellent value for the investment.

Flexible phone integration

91% of reviewers feel positive about VoIP.ms’s phone and softphone capabilities. Users say the platform supports a wide range of devices, from IP phones to softphone apps, making setup straightforward. They appreciate the flexibility to configure complex or simple phone systems without requiring advanced technical knowledge. Reviewers mention the ease of integrating both new and legacy devices, and value the customizable features that allow for tailored solutions. They find the system reliable for both business and personal use.

Consistent and reliable service

Service is very stable, five-nines of reliability.

98% of reviewers feel positive about VoIP.ms’s service reliability. Reviewers indicate the platform provides stable, dependable communications for both business and personal use. They say the service is robust enough for critical systems, with minimal outages and predictable performance. Users appreciate the peace of mind that comes from not worrying about dropped calls or technical issues. They find the reliability essential for daily operations and note that the service has improved over time. Some users say the service’s consistency is a key reason they remain loyal to VoIP.ms.

Responsive customer support

96% of reviewers feel positive about VoIP.ms’s customer support. Users report that support staff are knowledgeable, helpful, and quick to resolve issues. They appreciate the availability of chat and email support, with responses often arriving within minutes. Some reviewers say the support team guides them through setup and troubleshooting, making even complex configurations manageable. They value the human, solutions-focused approach and note that support is consistently reliable whenever needed.

Comprehensive feature set

President

My overall experience with VoIP.ms is excellent as I can offer a feature rich system to my clients and get them setup very quickly.

91% of reviewers feel positive about VoIP.ms’s features. Users say the platform offers a wide variety of options, including advanced call routing, IVR, and API access. They appreciate the continuous addition of new features and the ability to customize services without extra costs. Reviewers highlight the flexibility to adapt the system to different business needs and note that the feature-rich environment supports both simple and complex setups. They find the documentation and support helpful for leveraging the platform’s capabilities.

The service provides great call quality, competitive pricing, and a wide range of useful features that have helped streamline my business communications.

The call quality was fine but we have to press the Flash button to get a dial tone.

Principal

Again, regarding only the new softphone initial release: It only works with the "master" voip.ms account, not with a sub-account.

Additionally, the ability to customize call routing and integrate with other systems is a huge advantage.

They often have numbers in stock for my rural location or they can procure one within a few days.

Top Dog

I have extended the functionality to include my own DB-driven anti-telemarketer blocking system by adding in my own custom configured Asterisk instance running under FreeBSD and it was pretty easy to configure a SIP trunk in voip.ms to accommodate this.

There are tons of features including setting up voicemail, call and text forwarding, receiving texts and voicemails as emails, and I think there is even voicemail transcription.

The SIP trunking provides great rate, great wiki documentation to setup everything, no restrictions such as verified caller IDs on outbound (making it useful to forward calls to another phone and preserve caller id)

Teacher

It allows me to access my voicemail when I'm away from my phone and sends a file of the voicemail for my records.

Vice-president

We build customized IP-voice systems and solutions, and VoIP.ms' feature-sets, good reliability, and low costing helps to enhance what we do.

It was meeting our needs until the surprise $75 charge.

We wanted a system that would allow us to cut off and block problem callers due to the possibility of harassment - This works well for us and we can segment callers as necessary

IT consultant

Good southern Ontario DID availability: Lots of local numbers for southern Ontario locations and lots of support for porting existing numbers in.- lots of features: based on Asterisk and provides most of what Asterisk provides- low cost: both per second and flat rate pricing models

Chief cook & bottle washer

We use VoIP.ms as our main home phone line, and on two mobile devices as our only telephony application.  

What started out as a homelab project quickly evolved into a production environment for my small business at the time, while I am no longer a part of that small business I still use VOIP daily in my current role.

Fund Development

VoIP.ms is a pay-as-you-go, inexpensive pricing model that allowed me to use my own device and manage the same phone number, over many years, despite moving.  

With both flat rate and pay-as-you-go plans, VoIP.ms's pricing flexibility and low rates allow me to find a plan that fits each situation's particular needs.

Regional Sales Manager

Also, there should be an option to pay exact amount desired rather than just in increments (i.e. $5, $10, $100, etc).   If a customer wants to pay say $22.43 exactly because say he/she has a credit balance on his/her credit card for that amount and he/she wants to deplete those exact funds, he/she should be allowed to do so.  

Easy setup with my Cisco SBC and simple integration to my Cisco Callmanager, Cisco Contact Center Express, Cisco Unity Connection and Cisco Emergency E911 systems.

I wish they could have only one domain to point to and then do routing to the appropriate server on their end.   If one of their servers goes offline, you must manually change the server across all your devices.

I used to run a home brew phone system that I configured using ATAs, UNIX servers, and assorted POTS phones.

Absolutely sensational experience, low cost, competitive pricing models and coupled with an onsite PBX or Desk IP phone, the operations are extremely less cost than other cloud-based solutions.

I've used them as a backing provider for softphones and various physical IP phones—they were a breeze to set up and offered plenty of routing and IVR options.

Technical Consultant

I love being able to create a DID number within seconds, point it to a standard IP phone and have voice mail and it not break the bank!

Please announce when sub-account support is added!

Consultant

VoIP.MS manages all our operations, and routes calls to all sorts of softphones, SIP clients and more.

The API is a big deal as well as it enabled us to write a SMS/MMS interface application that meets our specific needs.  

There are almost too many IP-voice features offered, and new feature sets are rolled out periodically. If you're wishing for some specific capability, look to VoIP.ms first, as it's the mostly likely platform to have implemented it.

Also I can connect everything with API to automate SMS meeting confirmation, voting, pools, etc.

Language Coach (Cartus). freelance writer (Wiley & Sons)

Also, VoIP  enables us to call Europe, which we do frequently, at an extremely low cost, dramatically less than we  paid to our previous provider, AT&T.

It is a powerful telcom system with worldclass support.

In almost 4 years since I have been using VOIP.ms, it has been consistent in the service, saves us a ton of money compared to the other providers and the customer care has been stellar in the few times we need support.

Setting rates for being a reseller is confusing, the reseller can set rates based on fractions of a penny or by percentage.

Owner/Managing Member

That one payment now lasts us over a year of usage on VOIP.ms.   Plus we get more features: SMS, voicemail, virtual assistant.

Owner 

Highly confirmable, can be used with ATA, softphone, lots of features such as voicemail, redirection, etc

Animation Director

We're able to screen our calls and then block spam/phishing callers, of which it seems there are a lot these days.

SIP.US vs VoIP.ms Comparison (2026)

SIP.US

VoIP.ms

Overview

Video & Screenshots

Pricing

User reviews

Key features

Integrations

Alternatives