Spec for 3CX on Cloud

[HiroNikuyama]

Hi, I'm going to Build 3CX on cloud.
The requirement has the following 2 patterns.

1. 290 users 140SC
2. 290 users 40SC

When I checked 3CX Hardware Requirements, it shows up to Large (up to 250 ext) for the category "Cloud Provider".

Could anyone help me to figure out the spec of cloud server the meets the requirement of Each?

Hiro

 

[AWS2P]

Do you plan a VPN between PBX an phone location use ?
Otherwise you 'll need multiples SBCs to connect phones (if you plan to use deskphones)

 

[HiroNikuyama]

Hi, our plan is to use softphones.

 

[AWS2P]

Ok so if no deskphones so no need of SBCs
Do you have intensive use on pbx ? with lots of Qs ? IVRs? RGs? Recordings?

 

[HiroNikuyama]

Hi thanks for the reply.

>Ok so if no deskphones so no need of SBCs
Okay understood

>Do you have intensive use on pbx ? with lots of Qs ? IVRs? RGs? Recordings?
Probably so(Sorry what does RG stand for?)

Hiro

 

[Saqqara]

Probably so(Sorry what does RG stand for?)

Hiro

Ring groups

 

[HiroNikuyama]

> Ring groups

Oh yes. Then the details are not fixed but those features will be used.

Hiro

 

[HiroNikuyama]

So what is your suggestion?

1. 290 users 140SC
2. 290 users 40SC
Use softphones
use lots of Qs, IVRs, RGs, Recordings

Hiro

 

[NicholasP_3CX]

@HiroNikuyama when sizing the machine, as it is very close to the specs of the 250 extension machine, you could go to the next level of the machines that each provider gives. This would also give you some room for expansion as well, as it isnt always a good practice to spec out a machine just for the number of extensions you currently have.

You could also use the specifications for an on premise device as an indication of the specifications required.

Also, depending on the traffic, it may be beneficial to look into an on premise server as well, if all the traffic is located in the same office for example.

 

[HiroNikuyama]

Thank you.
Does it apply to both cases?

1. 290 users 140SC
2. 290 users 40SC

 

[NicholasP_3CX]

The specifications are based on the users using the PBX, not the simultaneous calls.

 

[cobaltit]

So it's the cloud. Start with the recommended size (or move up a level) and watch the resources. If it seems like it needs more resources you can just upgrade the instance, usually with little to no interruption. That's one of the benefits of using the cloud. As you've seen from the questions sizing depends on your usage scenario so there is no hard and fast rule for sizing. There's that table and then there's installing and adjusting as needed.