SIP.US Software

4.83 / 5 (59)

About SIP.US


SIP.US is a cloud-based business VoIP solution that provides SIP trunking services for IP-PBX systems and analog and digital telephone adapters. Key features include a Tier-1 redundant network, toll fraud protection, direct inward dialing, support for dialer traffic and more.

SIP.US maintains real-time call data records (CDRs) which help users to keep track of operations and activities and understand their business needs. The solution also monitors the network for international call fraud in real time and deploys procedures to stop calls in progress and alert both customers and the network operation center in case of suspicious activities.

Additionally, SIP.US offers users the capability to apply nomadic e911 multiple direct inward dialing (DID) numbers and supports integration with various open source systems such as Asterisk, FreeSwitch, Elastix, PBX in a flash and more.

Services are offered on a monthly subscription basis that includes support via phone, email and online FAQs.



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Supported Operating System(s):

Web browser (OS agnostic)

59 Reviews of SIP.US

Average User Ratings

Overall

4.83 / 5 stars

Ease-of-use

4.5

Value for money

4.5

Customer support

4.5

Functionality

4.5

Ratings Snapshot

5 stars

(52)

4 stars

(5)

3 stars

(1)

2 stars

(1)

1 stars

(0)

Likelihood to Recommend

Not likely

Very likely

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Showing 1-20 of 59 reviews

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June 2019

Kimani from Aurea

Company Size: 201-500 employees

Review Source: Capterra


Ease-of-use

4.0

Functionality

3.0

June 2019

Mostly good, some missing features

Overall we are very happy with the SIP.us solution. We have contractors all over the world, so having the ability to call people all over

Pros

- Ease of integration with the PBX (we use Asterisk)
- Clear user guide and documentation

Cons

- Mostly good for calls made to North American and western-European numbers. Not so good for international calls, especially to some countries - India, Russia and some Eastern-European countries (Romania, Bulgaria, Armenia come to mind).

Some providers in these countries seem to detect that our calls are Voip calls and block them. And we have raised this issue with SIP.us, but received no feedback. This means we have to spend more money making phone calls via Skype. And Skype calls are expensive but always go thru, unlike calls made via Sip.us trunk lines.

Now, I understand you may say it is not your fault that telcos are blocking calls made thru SIP. But from my PoV as a customer, what I see is simply that Skype-made calls work where SIP-made calls are failing to go through. So what is Skype doing that SIP cannot?

May 2018

Robert from McClelland and Hine, Inc.

Company Size: 51-200 employees

Review Source


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

May 2018

SIP.US saved the day and changed how I look at phone service forever.

When I happened across SIP.US in a google search on the weekend when our physical phone system crashed and we had to build a virtual one quickly and get it up and running before Monday, I had never used SIP trunks before. I had not used them because I was unsure of the technology and worried about call quality, the phone company always wanted to bring in a separate circuit to run SIP trunks (more bureaucracy and red tape). SIP.US was fast and easy to get going and JUST WORKS! We enjoy great call quality with SIP.US and have the flexibility to add and remove phone numbers and trunks at will. We can respond to market conditions instantly scaling up or down at will. I wish I would not have waited so long to give this service a try it really does change the way that we think about voice service. I suggest using the free trial and just giving it a shot, once you sign in and see the portal and all that you can do INSTANTLY you will be hooked.

Pros

SIP.US is very quick and easy to set up and use. I set it up at around 10pm on a weekend when our phone system had died and we had to recreate a virtual one that could not connect to our existing PRI. Without talking to anyone I had a SIP trunk up and taking calls in less than half an hour without having any previous SIP trunk experience. The next day (on a weekend!) I received a call from the executives at SIP.US to make sure I had everything that I needed. The support team proceeded to help us get all of our numbers ported as quickly as possible (you can do this from the web portal but they were just being nice.) Once I understood the ease of use (no calling and waiting for the phone company to wait through their bureaucracy), reliability and clarity of using SIP trunks through SIP.US I could no longer imagine relying on a traditional phone company for phone service. SIP.US is a game changer, we have never looked back. SIP.US is how phone service should be.

Cons

I have not found anything to dislike. SIP.US does what it says it is going to do and keeps on doing it. Full control of my phone service from a web browser, what's not to like?

June 2019

Thomas from Independent Systems Consultant

Company Size: 1 employee

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

June 2019

Excellent & easy to use service.

Have been connected to SIP.US for many years. They've updated the web site to make it even friendlier and self-service is a snap. The only issues I've run into were local to my network & ISP but the support team was able to provide enough clues as to likely cause that I was able to get things up and running.

Pros

I have a home lab with a couple of Asterisk servers. Provisioning trunks & numbers is a breeze.
I do contract work for businesses in London & Auckland and setting up a local DID is super helpful.
Since my usage is quite variable I really appreciate the prepaid pay for what you use plans.

Cons

Haven'r run into any snags. I would appreciate SMS options for significantly less cost (although I haven't looked into this in a while).

June 2019

Jim from McDonagh Brothers

Company Size: 2-10 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

June 2019

SIP.us is a great vendor partner

SIP.US gave us the ability to provide VOIP managed services without needing the expensive and complex trunking issues. I have always been confident in transferring the phone numbers to sip.us.

Pros

The timely support when I was having issues with my software or my clients software interfacing with sip.us was invaluable. They contacted me directly when there was an administrative (billing issue), which was appreciated. I also like the flexible services and ability to setup trunk accounts.

Cons

I'd like to see some advances in encrypting the sip traffic and the ability for me to resell trunk accounts to my customers

June 2019

Charles from Benchly, llc

Company Size: 11-50 employees

Review Source: Capterra


Ease-of-use

2.0

Customer support

1.0

Functionality

3.0

June 2019

Your experience may vary

I inherited the phone system from the original individual whom had passed away prior to my being hired. Though the user experience has changed with an overhaul over the main site itself, there are still many things that are a pain to do. The bills are also very vague & fixing charges has been a massive pain. Items will have generic listings and refer to something you wouldn't have even thought of. I've tried since January to get credited for an item I was told was 1 thing but turns out it was something we no longer had and while it was removed, the credit was never applied. Weeks can go by without a response to a query or action is taken without a response back. Part of these issues could very well be that I am not the primary on account, but I am the one that handles it. Improving the communication could possibly do wonders for the business as a whole.

Pros

You can login via root and make changes to system via command line. This can be a big plus if you're wanting to make custom edits or security changes to the system to meet your companies' needs.

Cons

The servers were not kept up to date by provider as I was told they would be, so our software has fallen too far behind the current available branches to update. This mostly means I have to keep within specific lines of phones and forced to manually deploy each new phone. This also means that I don't have access to command line tools I would normally have to trouble shoot connection issues the OS is way out of date as well and can't be updated without a massive headache which I haven't found to be worth the effort.

June 2019

TJ from Pollard Spares

Company Size: 2-10 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

4.0

Customer support

5.0

Functionality

5.0

June 2019

Good service, great provider, tad pricey though

Overall experience has been good. The major thing I wish they had is a 24/7 phone number that I could pick up the phone and call for tech support. When we do cutovers and new projects it's usually done after hours or on a weekend to avoid cutting into business hours, so having support 24/7 would be hugely important to tech people like me.

Pros

Service is outstanding, don't have to deal much with dropped calls or latency issues. The web interface is intuitive and easy to use, and most importantly the support is pretty good (email/ticket only though, really wish they offered more support over phone)

Cons

I don't think they have phone support that you can call in normal, if they do please let me know and I'll modify this review. Only other drawback is cost is a tad higher than some others out there. But SIP.US is pretty easy and reliable.

June 2019

Steve from Accent

Company Size: 11-50 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

June 2019

Tip of the Hat to SIP.US

After nearly 5 years the internal SIP.US team continues to be a thought leader when we need new solutions. It happens often that we present an idea and they say "we have been working on that" and they can show us examples of their progress. Priceless.

Pros

The portal for searching for available numbers is very easy to use. We have even integrated our Slack channel into the product so that Sales personnel can use it with the clients.

Cons

At this point there is nothing that comes to mind regarding "least liked".

June 2019

Chad from Mountain View Fruit

Company Size: 51-200 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

June 2019

SIP.US solid services

My justification for using SIP.us was simple: better pricing than anyone with similar features/ratings. My justification for using SIP.us when expanding to ALL voip: value and 2 years of uninterrupted service.

Pros

SIP.US provides rock-solid VoIP trunks. We used them for our first VoIP PBX deployment and have literally had zero problems with them. Their reliability to provide consistent service is imperative as we're a heavy voice user.

Cons

I have no complaints or negative experiences with SIP.us

June 2019

David from SIPTRUNK.com

Company Size: 11-50 employees

Review Source: Capterra


Ease-of-use

4.0

Value for money

5.0

Customer support

5.0

Functionality

4.0

June 2019

Fantastic SIP Provider With Excellent Technical Support

We use SIP.US as the phone provider for our office's 40-extension phone system. We currently have toll-free and local numbers (DIDs) with them as well as some fax numbers.

Pros

- Completely self-service website.
- Fantastic technical support that responds within minutes, usually.
- Automated number port-in process.
- Huge inventory of DIDs across the country.
- SMS service is available on most DIDs.

Cons

- Website is a little outdated.
- Pricing is just fair, not great.

June 2019

Ron from RockSecurity.com

Company Size: 51-200 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0

June 2019

System Independent

We have a system that makes outbound calls via SIP. SIP.US gives us an independent communication separate from our corporate phone system.

Pros

The software provides real time reports. From time to time we receive complaints that a call didn't go through. We can pull a report and see if the went to the right phone number and if it was picked up.

Cons

Email notification with how many times all trunks are busy but it doesn't say when this happened.

June 2019

Dr. Raymond from Advanced Wireless Technologies, Inc.

Company Size: 2-10 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

4.0

June 2019

Excellent SIP Services Provider

We have utilized a number of providers and this provider is the most stable, responsive and reliable we have found.

Pros

SIP Services are very stablr.
Redundant Facilities
Minimum number of networl issues
Excellent Connectivity
Excellent and time efficient tech support
Minimum number of configuration issues

Cons

We have found no problems or issues to report.
Any issues we may have encountered were quickly resolved.

June 2019

Greg from Olengofer Studios

Company Size: 2-10 employees

Review Source: Capterra


Ease-of-use

5.0

Value for money

5.0

Customer support

5.0

Functionality

5.0