SIP.US Reviews

Pros

The setup process was super simple and across the seven years I've been using the service, the software itself and its performance has stayed very reliable.

Cons

Billing side can still be somewhat confusing and customer service has been a little hard to deal with at times although both have gotten better over the years. The mix of prepaid charges and separate billing adds extra steps and can be unclear. DID billing, in particular, is handled separately instead of coming out of prepaid funds like with most other services and it can't be prepaid.

Pros

From planning through deployment and even afterward, the support team really went the extra mile to help us get our phone system up and running.

Cons

It's price did go up a few years ago but honestly it's hard to complain about an increase from $0.01 to $0.012 per minute.

Pros

Everything is self service so there's no need to deal with phone calls, quotes or endless back and forth emails. That saves a huge amount of time when you already know what you need to accomplish and you're working with a tight deadline.

Cons

I'd definitely roll this out in more locations if there were alternative calling plans with lower starting costs.

Pros

Phone calls come through with clear audio and it's convenient that options can be added or changed directly through the online login without needing help from SIP staff.

Cons

Wish we could use this for faxing.

Pros

Getting everything up and running felt very simple overall. That included the initial setup for a test trunk and DID, as well as porting hundreds of DIDs over from our previous carrier.

Cons

If I had to point out one downside, it would be that the user interface could use a bit of modernization.

Pros

Right from the start, the service has been outstanding. I rarely have to deal with dropped calls or latency problems which has made it very dependable. The web interface is user friendly and simple to navigate and just as important, the support team has been quite good. It's handled through email and tickets only though and I really wish they offered more help over the phone.

Cons

As far as I can tell, there doesn't seem to be a normal phone support line to call. If they actually do have one, I'd gladly update this review. The only other downside is that the pricing is a little higher than some competing options. Even with that, SIP.US has been reliable and simple to use.

Pros

Whenever I ran into problems with my software or when a client's system wasn't interfacing properly with it, their quick support was incredibly valuable. I also appreciated that they reached out to me directly when there was an administrative issue with billing. On top of that the service flexibility and the option to set up trunk accounts have been big positives.

Cons

I'd still like to see improvements in SIP traffic encryption, along with the ability to resell trunk accounts to my own customers.

Pros

One of the biggest advantages has been the chance to get better pricing, along with reliable service and solid support whenever needed.

Cons

At this point, everything has been going well and I really don't have any complaints.