Kamailio SIP Server vs. Nextiva

Kamailio SIP Server is very well suited if you want to secure your main servers; it can perfectly act as a proxy server and a gateway to your main server. It also does load balancing and call transfers easily based on the configurations done.

Incentivized

We have had great service with Nextiva Business Phone Service and it is reliable and reasonably priced for the offered features. User Friendly and minimal issues. We are able to control most of the set up for new users and or new phones when needed. Only would like to see the app - Nextiva One be enhanced with more features than it currently has.

Incentivized

• Proxy server.
• Security Firewall.
• SIP to PSTN gateway.

Incentivized

• Up-time, We've never had any sort of extended downtime because of Nextiva Business Phone Service, there services just work
• Provisioning of supported devices is very easy to do and is almost automatic, this makes new device roll out especially smooth
• The call flow functionality is especially smooth and intuitive to setup.
• Their customer service is very effective and I've never waited more than 2 days for a solution, that's for more complicated issues too.

Incentivized

• Interportability
• SIP conversions.

Incentivized

• The use of two apps when you're a supervisor. We have to use Unity and the Nextiva app instead of one app. It can be cumbersome.
• Better integration with CRM's. We use Zendesk and it works ok as it does pull up customer records if we have their phone number on file. But it would be better if we could have more functionality from one place and have it write to the CRM directly.
• Accept higher quality audio for greeting recordings. We had to trim the file size down several times losing a lot of audio quality in the process. Mono is fine since callers will only need to hear the one channel. But the Hz limit and file size limit were rough.

Incentivized

Its user friendly, easy to use and has been very reliable. We have nothing but good things to say about our service with Nextiva Business Phone Service. When needed their support team has always resolved any and all issues one way or another. They have been helpful, knowledgeable and very friendly. The features vs the cost is wonderful compared to other service providers.

Incentivized

The whole system sucks. It’s the worst and we are stuck. They won’t price match, they won’t even consider the other quotes we have and all they tell us to buy out and move on. They’re money grabbing snakes who need to go away. How they have this many stars is insane. I don’t know how people are writing these reviews

We have not yet experienced any issues the Nextiva Business Phone Service availability. It has always worked as needed.

Incentivized

Nextiva Business Phone Service performance is great. The call quality is much better than our old analog land lines at a fraction of the cost.

Incentivized

Support is great. We usually get someone on the phone; they answer our questions and help us with our issues. They are responsive when we call, and there is also a wealth of information on their online help center, which will typically answer our question or send us in the right direction.

Incentivized

The training we received from Nextiva Business Phone Service was thorough, and detailed. It also did not take very long.

Incentivized

No was done by Agency Owner and was done with the help of Nextiva Support and Sales team. Went very well and has been working great since then. Was originally only two phones and then we continue to add to that. We did not have any reported issues and was a great experience for our Agency and Small Business.

Incentivized

As Kamailio SIP Server is an open source, the major impact is on cost; it's free to use compared to any other Softswitch or server in the market. You can also customize it to your need and use the features that you need, which is one of the major plus points for the Kamailio SIP Server. And one server is enough to handle thousands of calls simultaneously.

Incentivized

We switched for better uptime, ease of use, and better tech support and got all that from Nextiva. We were constantly losing connection with our previous provider, a package service for internet and phone. The web portal is much easier to use, and the call center offers many more features.

Incentivized

We have not yet needed top scale up our phone system yet, but I can tell that it will be very quick and effortless to do so when the need arises.

Incentivized

• As its open source ROI is excellent.

Incentivized

• ROI - we are saving money, a lot of money, and we have a MUCH better phone system
• Consolidation - we migrated 6 different phone systems in 6 different counties into one, and it's been wonderful!
• Management - managing this system is so much better than Mitel, Panasonic, and any other system I have used. We are able to assign rights to certain staff to also make changes, and it's user friendly and almost fool proof.

Incentivized