3CX VOIP Solution

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networkn

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Topic # 148872 3-Jul-2014 14:10

Hi.

A customer of mine is considering moving to a 3CX VOIP Solution. As I understand it they want to load the software right onto the SBS Server (I have insisted it's separated onto a VM), and they are insisting on a P2P Fibre Solution as they say UFB isn't suitable.

Customer have about 8 calls in or out at any given time, and the ISP is happy to tag the traffic, I'd struggle to see how a 100/50Mbit UFB connection wouldn't cope just fine, even if it's not "guaranteed" to the same level and is fully contended.

Apparently the phones plug directly into the PC (I think via USB).

They have all Gigabit LAN. Does anyone have any experience with this? I have concerns over it's stability etc.

radicall

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Radicall

Reply # 1079431 3-Jul-2014 14:27

I can pretty much guarantee the quality of calls over UFB at that level of calling, what is their Internet usage like.

What we can not gurantee is the response time to any issues should UFB go down for any reason.

Service response time is the main reason why you would want to implement P2P, HSNS etc..

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networkn

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Reply # 1079434 3-Jul-2014 14:35

Experience tells me that P2P Fibre and HSNS don't get fixed as quickly on average as some ADSL/VDSL faults. I know officially they give higher priority to the more expensive connections, but in practice I wonder what the difference is? I had a customer with a P2P Fibre issue, down and out for 3 days.

Zeon

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Reply # 1079437 3-Jul-2014 14:50

I know the type of people who prefer to think some kind of contract protects them but aren't the ones who have to fix the fault at the end of the day. Realistically if you want reliability you need 2 connections over different mediums.

sbiddle

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Reply # 1079452 3-Jul-2014 15:17

How is the ISP going to "tag the traffic"?

HSNS is a full CIR product with strictly enforced policing (discards when CIR is exceeded). While it's perfect for VoIP since it's a dedicated CIR you need to ensure the connection is fully policed at both ends with some form of differentiation for the VoIP if you're running data & VoIP to ensure the connection isn't saturated which will kill VoIP (as packets in excess of the CIR are immediately dropped). Without this you are guaranteed to have voice issues if the downstream or upstream is saturated.

In many ways UFB is superior as the high priority CIR is guaranteed and you only need to ensure you're passing through the correct 802.1p tag on your upstream to access this. Depending on your ISP they may have the ability to tag downstream VoIP (if you're not using their VoIP solution) to use the CIR.

ubergeeknz

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Vocus

Reply # 1079515 3-Jul-2014 17:02

2 people support this post

The UFB link will be fine for 8 channels; however running your phone system on a server which already does everything else seems like a terrible idea.