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OfficeSuite Bandwidth Recommendations

edited February 2018 in General Info

OfficeSuite Bandwidth Recommendations

OfficeSuite operates on broadband (WAN or Internet) and baseband (LAN).

  • LAN – Local Area Network. Most companies operate a 100 Mbps or 1000 Mbps (GigE) LAN.
  • WAN – Wide-area Network. Speeds vary greatly but typically are a minimum of 1.5 Mbps to 50 Mbps and beyond. Some of the services are symmetric (same speed in both directions) and others are asymmetric (higher download than upload speeds).

Each Call Path (SCC—Simultaneous Call Capacity or Virtual Line) requires 88 Kbps (both up and down) on both the LAN and WAN, which means from the phone all the way through to the cloud.

Remember that only calls into or out of your location count as simultaneous calls for your projected SCC or line count. Calls between desks in the same office don't count against SCC because their audio streams never leave the office. When you have 10, 50, or 100 phones in a single office, the SCC for that office should be based on the maximum number of phones that might be connected to the world at the busiest part of your day. 

For example, a 10 phone office might need 10 SCCs (unless one of them is a conference room phone), while a 100 phone office might need 30 SCCs. Bear in mind that every business is different.

Areas that need attention:

WAN is where you need to make sure you are covered. 
1. Are you using the internet circuit for voice only?
a. If just voice, then take 88 Kbps and multiply by the number of SCCs you have.
b. For example, 10 SCCs * 88 Kbps = 880 Kbps.
c. You would need this speed up and down to accommodate this number of SCCs.

2. Are you using the Internet circuit for voice and data?
a. You need to account for your data use. This includes things such as email, video calling, internet browsing, FTP, music streaming, file sharing, and so on.
b. To use the example above, voice requires a minimum of 880 Kbps in both directions.
c. You would need to know what you use for your data services today and add this to the 880 Kbps for voice.
d. If you had a 1.5 Mbps circuit and were routinely using 1 Mbps prior to adding any voice services, then you would need to increase your bandwidth as it would not accommodate both voice and data. In this example, there is only 500 Kbps left, and this would only accommodate five call paths, rather than the 10 needed.

LANs can be run like WANs.

1. Are you utilizing it just for voice?a. There should be no issues here; since most LANs are 100 Mbps or greater, there is quite a bit of capacity.

2. Are you utilizing your LAN for voice and data?

  • This isn’t an issue, as most of our customers handle it in this manner but...
  • You need to be aware of the other traffic going across your network.
  • This isn’t a problem for most customers, but let’s say you have someone (unbeknownst to you) streaming music. This could chew up a large portion of the baseband.
If you think this is an issue, then one option is to set up vLANs (Virtual LANs): one for voice and one for data.

 You would give priority to the voice vLAN in order to make sure your voice calls are not disrupted (which is what happens above when voice and data traffic is separated).

vLANs are the responsibility of the customer but via separate Professional Services engagements, Broadview could assist you here as well.


Keep in mind that no two customers are alike. Here is a good rule of thumb for determining bandwidth needs if you are unsure of what you use today: Assume 200 Kbps per person for voice and data (more for some, based on programs you use). If you had 10 people, then 2 Mbps (up/down) is the minimum bandwidth you should have. Keep in mind that every business is different, and some offices may require more.

Here is one example of a popular program (HD Meeting) and the bandwidth used:

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