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.
Robert from McClelland and Hine, Inc.
Employees number: 51-200 employees
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.
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.
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?
Raquel from Alberto Brothers Law Firm
Employees number: 2-10 employees
Customer Service and Tech Support are amazing! Truly caring and there for you in a second. We have had good experiences with all of their tech support workers.
Glitches with PBX system are the only bad thing. Although, they do not happen very frequently. Other than that, none.
Heidi from Applied Imagination
Employees number: 11-50 employees
The product has tons of features and gives you complete control over your phone service. Sip.us has the BEST customer service. They are always ready and willing to help! Instructions are also very clear on the website portal.
There is a learning curve when it comes to setting up and learning how to use the PBX and all the features.
Tim from Rowmark, LLC
Employees number: 201-500 employees
If you have an opportunity to work with them, do so... He has made this an incredibly smooth experience, and the transition thus far has been flawless. The few times I've had a question, or needed assistance, the customer service people are on the ball, and respond with incredible speed, especially when compared to our previous SIP provider.
The best part so far, has been working with representatives. They are incredibly honest, friendly, and accommodating. The service is solid and of great quality, and I love being able to view and modify things like CNAM, E911, etc., right from the customer portal. Our previous SIP provider required that a ticket be opened with them, and then they would make the changes.
I haven't had any issues, thus far. My only wish would be to port things in even faster, to get off of our current SIP provider... but that's not due to any limitation with SIP.US.
Nate from Bell Springs Winery
Employees number: 11-50 employees
The setup is dead simple. Started a free trial in 30 seconds. Was connected in less than 5 minutes testing the service. I had a couple of questions and support was fast with responses.
I haven't had any issues with the service and it has been exactly what I had expected to get when I signed up.