I rate the solution's scalability an eight out of ten. We have 80-90 executives using it.

Live Chat is absolutely scalable. One of the reasons we use 3CX is that the license allows an unlimited number of extensions, so we can put as many people as we want on the solution. So it's highly effective from that standpoint.

Scaling up is very easy. I had some cases where I started with 24 simultaneous calls and I had to upgrade to 32 simultaneous calls, and it was very easy. I just changed the configuration and designed new extensions. 

We have not experienced any problems with the scalability of 3CX Live Chat. For the number of agents and users that we have that used it, we have not run into any capacity problems.

We have two teams of 10, totaling 20 users using the solution. They are not all using the solution at the same time, they tend to rotate around.

We have approximately 50 users using this solution in my organization.

The target market for this solution is small to medium-sized companies.

I could scale the solution to any size. I have no doubts. I can go up to 2,048 simultaneous calls. This may even be 4,096 now, and I could bridge multiple of those together. One of those systems would be sufficient for a company of 10,000 to 20,000 employees. I don't think there's any issue with scalability, once you start bridging systems, you can get as big as you want.
I can maintain 50 to 100 servers by myself with some additional tool set features and some adaptions that we've developed. We also have our regular help desk that will jump in and help with issues. Purely for maintenance, I would say 100 servers would be the limit for how many servers a single person could manage.  

We've had no issues with scalability.

Scalability is perfect, meaning there is no prepping to do. You can scale the solution as per your requirement in the future as well.

There is no break point at the scalability level. Almost 1,000 to 1,200 users are using this solution in our organization.

In the future, if business grows, it would be increased at least 5% year on.

I'm not really sure about the scalability, to be honest. I’ve never had to scale the product to any great extent.

In our organization, every employee uses it. That’s over 200 people at least.

We have not encountered any scalability issues; scales just fine.

We have approximately 40 people in my organization using the solution.

We have plans to increase usage in the solution.

Mostly everyone in my team is using the solution.

No, being a 3CX Partner makes it easy for use to upgrade licensing when needed. The ease of configuration makes it easy to restore if hardware needs to be upgraded as well.

You can scale indefinitely, and even go multisite.

It's scaled to our needs without issue.

So far I have only done small installations ( <16 simultaneous calls), but it has worked well for those installations.

No.

We haven't tried to scale up 3CX or add any plugins yet. There are 25 people in my company using 3CX, primarily developers. 

Not in the least. This product is quite scalable.

We have some fairly large implementations with multiple offices and multiple 3CX servers in bridge mode, and overhead paging systems etc. and we've had no issues.

It has scaled to our needs without a problem.

With regard to scalability, some of the plans need to be done before you go with the initial steps. The main thing is the extension amount.

If you currently have two who use it, but then you have 25 or 30 employees that need extensions, then initially you can use the tool to get extensions. However, when the company grows and the employee count increases by 100s or 1000s, it will be somewhat hard. Once defined in the initial step, the extension and limit count cannot be changed. It will be somewhat hard to scale because you need to plan for the future way ahead of time.

We had around 30 to 40 users. They included network engineers, the manager of the network team, system engineers, HR employees, and the chairman of the company.

We have more than 100 employees and the system is running very well. It allows us to create unlimited extensions and user accounts.

We have never had any scalability issues.

3CX is the most scalable PBX system I have encountered, from connecting multiple 3CX systems in different countries and all the add-ons for CRM systems, it makes a very scalable system for all industries.

Scalability has not been a problem whatsoever, as the license is unlimited regarding the number of extensions and call concurrency.

It scales to our need.

Same as above, but we’re a small-to-medium sized business, thus we cannot delve deeper in this area.

No experience with this, but based on deployments which we were part of, the system managed scalability (user and functionality) with ease, requiring no additional licenses or software assurances.

We have been involved in the implementation of 3CX of various sizes, from four to 32 users, and never had issues. It is nice that the configuration process is the same no matter what the implementation size is.

No, as we have deployed 3CX on a virtual machine. We can assign/remove resource as required.

Scalability is very good. It is very easy to increase anything we want with this system.

I did not encounter any issues with scalability.

Nope.

We've had no issues with scalability.

We've been able to scale it for our needs with no issues.

It's scaled to our needs.

We've had no issues with scalability.

We've had no issues with scalability.

We've had no issues with scalability.

We've had no issues with scalability.

We've had no issues with scalability.

There have been no issues with scaling it.

We've had no issues with scalability.

No.